I
I
ma
""
PERMANENT AND SEPARABLEAEROSPACE
.
TUBING/F:ITTING EVALUATION PROGRAM
.,
=
VOLUME.I,
FINAL REP.OR3_
"'"
i• _
I:
L
_'r_'n*
Z
_¢N
_=u_r"m=_
J
oD
_h
t_
__
._i.
L,_
i,
i-,
SwRI
Projects
03-3113
and
Prepared .fo.r_
NASA Johnson.Spaee
Test Engineering
W. K..Andrews
Houston,
Texas
_q-"
,_
:,
03-3996
Center
Branch
WT-2
77058.
NASA ..Contract. NAS-9-14265
_ ca
_.
............................
_C30
T
_
_
and
_..
t:==,_Cu_m
_ > _
_
;_
_ t.J
_ _: _ =
Air Force Systems. ,Command
Aeronautical
Systems _Division, ASD/FNJPH..
Wright,Patterson
Air Force Base .Base,. Ohio 45433
AF Contract
F33657-71-C-.0914
!;
_
.=
_
o
_
""
,.
com=
¢-
¢"
g_ I"1
I _1
I_1 l.b _,_I
•,
{.;,_
v _.e_n U_
I1_
{
Prep.ar.ed .by
C, R, Urse.II and C .R, Franz
May 1975
1,
_....
_.,_
........
,_
-"":'_'
_.......
,"
"A
pproved for public release_ distribution
_4i:i
_•
unlimtt_._
_, .
_
.
,'
•
.
.
SOUTHWEST
SAN ANTONIO
RESEARCH
CORPUS CHRISTI INSTITUTE
HOUSTO
,
-,
A CKNOW
The
i ....
!
Systems
Force
i
I.
L
fitting/tubing evaluation
Command,
Base,
Aer0nautical
Ohio,.under
I_
_
Prete,
l_obert E ....
Reitz,
assistance, of this team
pro *gdL_m was
SyStems
Contract
col direction,_coordination
:
L EDG EM EN TS
Wr/ght-PatterSon
and monitoring
Ra._ond
R.
was
Hess
Program
provided
and Jesse
is gratefully acknowledged
techni--
by Messrs.
A.
Poole,
Sorro
Ill. The
as theydirected
results from
Air
the products
their ef-
presente d by
industry..
i
The
.! _
Division,
NO.. F33657-71-C-0914.
forts to.wards obtaining the maximum
i
sponsored_b_y, the Air Force
assistance, of SAE
Committees
and various
gratefully acknowledge
.since these
cOntributions
i_!'
state-of-the-art.
engineering
....
departments
J
supported
industry
personnel
aided the advancement
is
of the
I ,k
1
"
[:
;,
i
the. program
Following
maining
The
in the-areas
cancellation
testing in order
fication of fitting selections.on
'"
Volume
'_i_
ducted
I report
for USAF
of their particular
of the program
to have
by USAF,
available the complete
future projects.
as all tests conducted
in order
of particip_ating organizations
to maintain
for NASA
No
product
NASA
designs.
funded
data package
charLge.s were
were
]
the refor veri-
made.
ident/_cal tc those
continuity and correlatability
in this .......
con-
of data.
o.
,t
A.
r
r
ii
I
|
i
i......
%
I. AI,I_E
OF CONTI'.NIS
,!
_i,
""
Page
LIST OF.ILLUSTRATIONS
LIST
--
OF TABLES
Lv
v
?-
_. _,;
!
i;
:i
I.
IN_TRODUCTION
1
!
1
II,
PROGRAM.
BACKGROUND
AND REQUIREMENTS
3
I
]
7
1
i .
III.
AqJ.A REVIEW
' ii
_'
IV ..............TEST
,_':
V. .
SURVEY
VI.
TEST
!i"
;:
TEST
:
"
!
PROGRAM
10
OF INDUSTRY
19.
PROCEDURES
PROCEDURES
AND
I
].!
22
EQUIPMENT
34
(see page_ 35.for Table of Contents for,Test Procedures
and Equipment)
VII..
TEST
SEQUENCE
VIII.
TEST
EQUIPMENT
IX.
TEST.SPECIMEN
AND
QUANTITIES
]
165
i
172
DESIGN
180
_
1
..
X .....
TEST,
TUBING
_'"
XI..
MS FITTING
}i
XII.
SUMMARY__
195
..
f
Xlll.
REFERENCES
197
- B_SELINE
DATA
187"
,i
1-92
,
,i:
-I
iii
;
r
i
I
i,
I"
LIST
OF
-TAB LES
]"
'_
Table
T
1.
J;
.-
_o
Z
'"
TEST
PROGRAM
RECOMMENDED
PER. TYPE
AND
SUMMARY
MINIMUM
GROUP
12
TEST
SPECIMENS
REQUIRED
168
4k_
3
''
TYPICAL
SIZES
FOR
PERMANENT
_FEST
SPECIMENS
AND
SEPARABLE
T"
;'
TYPE
FITTING
185
Wm
!
i
[!"
[
! ""
!,
:
m-,
L'
k_
4
TYPICAL
5
TEST
SIZES
TUBING
FOR
WALL
BOSS
TYPE
THICKNESSES
FITTING
TEST
(NOMINAL).
i
i
:
[
"
i
,mm
tktl_
i.
'f,
I
:
v
!1
7,
n
h
SPECIMENS
786.
188
?
p
,.,
l.• INTROI)UCTION
The
..,
"
!
milestones
i
that
_:
il
tube
fitting
evaluation
ifi the. area of
was
contacted
that
are
p__rmanent
the program
in an effOrt.tO
'.
il '
concepts
t
.
installation
equipment,
I: •
of the..basic
requirements:
• _
! Li
ture
_:
i
Titanium
!
' i'i
•.
fitting
ae signs
i i
;_
braze
method..of
r _
type s of fitting/tubing
" '
range.of
in current
i;:
initiated
and
basic
locate,
to achieve
separgble
scv,,ral
fitting
requirements,
designs
The
and investigate
with
new: designs
-4,..QQ0 psi
to -t_50°F
tubing
that
production..along
Many
-65°F
3A1-2.5V
'"
,
il
with
was
new
fitting
designs
or
* j
:
t,L
advanced
would.b.e__compatibl_e,
industry
program
while
alloys.
we-re
operating
also
The
being
cu.rrent
p red0minantly-utilize
assembly
with
-
as sembly
eliminatezt
pressure
within
methods
because
the
:
tempera--
eompatib!e-with
Zl-6-9
state-of-the-art
provi.des
There
"
assembly-and.
quickly
Swaging,_
rue tubing
as.s.o_ated
and
we lding
and the induction
appears
to be four
_
basic
-
:
Brazing
Welding
Swage
!
.i
Cryofit (shrink)
It was
decided
that
the.test
program
would
attempt
to encompa_s.s_
t
!
i
,.
_ '"
!
all
and
.
four
a.ssemb[y_methods
separable
separable
type
designs
fittings
where
"over-the-counter",
and. fabricate
re,st
with
designs
two boss
possible.
with
as_.mbly
Th_se
assemblies,
fittings
into
compatible
permanent
with
1
the
',
wx_uld be prpcured__
to be accompliSh.ed
by the
fitting-
1
}
'
i.
manufacturer
utilizing
tubing
specimens-
furnished
by the
testingagency,
_
_:
i
i
2
-
A data
currc.ntly
r(:vlc.,w
nvailal)l(,
sta,_(lnrds
(lit(: .to kh0 va.ri_ous
pj;ocedures
this
and
program
equipmont
procedures
_i
qualifying
fitting/tubing
data/results
from
The
and
can
equip.re,
the
as
well
ctualifi.ed
consisted
resultS
as
r,,v(,,_lc,
a w.ido
as
fitting
would
to testing
the
data
or
from
which
for
corrr.lation
of t,-St
airframe
MS flareless
of
rnothod-s,
Sequonces
permit
manufacturer
goals
inctuding
test
manufactur,,r
(separable)
all
other
s
to J.n' tho(Is,
Of tl_¢. primary
recommended
to
t_
,'_.sMt
respect
t.e_.S.t.program
This
baseline
with
One
overall
d t.tl,qt t_,stin,,
vari_ti.mL.i,-_.t,,st
of tli, _ standar&s
a standard
ent
any
t(,._ting
produce
assemblieS.
program
utilizing
r(,lati,fl
design/_oop_ration..
is to develop
_nd
and
inter.pr0tations
;
:
On fittings
fitting
fittings
.......
1
will
'
1
i::
be
•.
:
evaluated.
tested
in three
(21-6-9
the
.
tests
i
rials.
c.able
Five
and
basic
sized
3AL-2.
report,
as
Separable
well
as
5V).
Volume
to his
-I0
each
own
and
Each
I,
discussions
In addition,
onl;
(-6,
designs.mad
with
participating
inc lude
on the
test
witl
and
the
permanent
two
a copy
MSba.selin(,
tubing
will
s discussions
procedures
receiw,
designs
types.of,
vendor
which
vendor
product
-16)
five
test
test
l
a copy
of
MS bas(,lin,
variouS
of the
data
mat_rials
r,-ceive
of the,
and
w,:.r_.
tubing
mate-
r(,sults_appli-
results.
""
I
PROGltAM
:. ..
,_n incr0a:_(,
i
. _
;
IIACKGROUND
roquirements
l)_ign
'
.::
II.
of future
in op6r_tilig
MS f[areless
fitting
AND
_ircr_ft
py_es_ure___.s
and
RI_QUIRNMI;:NTS_
w(.ll
many.otl_er
as
fittings
plqmbing
,_yst_,wLs-n,,,c_,s,siint,,s
op_,ratln_
onvirofim-nt.
availabh,
on todayL_
Th,
mark;,t
will
f
not
' i.
meet
the
increased
of fittings
is the
,
tubing,
fittings,
i
exactly
! . ,
and
wl_at
would
meet
ments
are
:
l_hexefore,
available
program
ASD
of. these
as
wa.s..then
and. then.
by the
ure
analysis.
for.
assembly
thickness
developed
ha-re
with
_s .well
to
des.ign
SST
.
determine.
TheSe
on the
probl,,)_
in th,
boards
1;equirementa
been.proven
the
as-flaws
a program
and/or
futuristic
with
tubing
the
and
up
them
to acquire
assemble
tubing
then
designated
the
their
was
ultrasonic
was
of-the-basic
weight
set
The
(including
.'the
One
have
contractor.
specificaLions
minum
wall
on today's_market
unrealistic,
industry
furnished
rigid
and
associated
and
that
requir,,=
B-1
_ircr_ft
_
The
fit-ting
Clos_,ly.
material,
demand
not
programs.
i
tubing
was
the
requirements
latest
designs
fittings
with
procur_-,d
by the
inspection)
cut
and
shipped
fittings_to
requirements
i:l_o-tder
f_om
test
the
in aerospace
this-requ_iremcnts.is.appl.icable
to
aid
Specimens
system
design
the
to
th_,fail-
manuf_ctur,.,r
test
to both
tubing
contractor
to th_fitting
form
th(,
._
is-mini-.
permanent
i
fit_ings,_.separable
ness
tahing
,:,
Therefore,
, .
riser
i
....
e_ists,
fitting._
will
be
the
tubing
the
and
tubing.
uSe_chieve
data
the
th_'.ma::imum
i_ su_c_:ptible
review
Normally
to
indicated
in w¢,ight
fatigue
that
minimum,_vall
especially
the
•
_i
reductiort_
if a fl_w
predom_na.n_ce,
,
thick-
i!
or
Stress
of f_ilur,_s
,
.......
I....
i I'l'lii ii........... i-";]1-i
I
i
.<._i
r ......
1........................... I,-7 ¸
I-7
11
4
occurred
i.n Lilt' i.ttbi._lg
of failures
..
occurr_,d
Several
r e,_sonS
and
not
in thtk filllng.
adjacent
could
to (witl_in
be attributed
Also,
two
to the
tub_,
the
gr_,nter
diarnl,rs)
proximity
p_.,rc_,nl'ag,
thcu_fi_l:ing
of th_,se
.ioil_t
failure,s
such
as:
-
Change
and
fitting
-
The brazing,
swaging
or welding
operation
with. rt, l_ted
temperatures
or.-work.hardening
Could affect
the tubin_
material
within
a certain
area
of the, j.nint
high
-
T.he critical
fitting/_tubing
i
in _'.,ction
prpperties
stress
point
test
programs
al;..th0
often
junction
occurs
of tube
at the.junction
of
i
After
:i
along
:
_:,.
reviewing
the
.various
that
have
been
conducted
"
with
a review
is noteworthy
.
(permm%ent
'"
between
is
that very
or
the
centered
and
is the
tubing
life..
The
with
resp__ct
system
fitting
test
and
and
future
failures
that
have
been
few failures actually occur
separable)
for
dures
of the
the
tubing,
This
designs
equipment
critical
and
design
.area
is the.area
it is
will
be
also
focused.
it
in the fitting its._if
is the
interface
where
the
documented,_
area
the
joint
primary
where
Another
or
the
emphasi_
test
critical
proce-
-
area
1
and the.associated
flaws
.or
defects
that
reduce
the
fatiguf,
i
r
....
and
,
results
to.-tubing
texture
In
order
i '
m_
I.
.
follows'
to
numerous
sur__face
control.
uq.u_alification
as
of the
tubing
tests
cond:,tioning,
should
provide
non-deStructive
useful
data..
inspo.ction
requir,.ments
'NDI)
:iI
_
encompass
!
.!
the
fifteen
com.phtte
(15)
test
separat_
spectrum
t_.sts
for
were
tube-fik.ting
recommended
°_
r.......
....................
I..............................
! ii] ....
-----]
T-7
il
!:
:',:-
:
'_
=
-
Rotary
Rotary
Ele×ure
Flexure:
(Room
(Room
-
Rotary
Flexure
(450°F..and.4000
-
Impulse
i
i...
.
i
RC,lJeated
Assembly
Proof.
,_nd Burst
Tempea'ature-and
Temperature
Tube-REstraint*.and
Vibration
:
Fire.
Resistance
Structural
Load
",.'-
Proof
Axial
pressure,
burst
.
psi)
* .......
Misalignment
and A.sse_znbly Torque
--Ther-mal
Shock
and StreSs
C0r.rosio_
--
400. psi).
4000 psi)
and
..
!
Pull
Relaxation
pressure
and
gaseous
leakage
t_sts
are
used
through-
I
i
.;
out
_.
the
test
speci!_ens
!i:
i:
i;
sequences
at opportune
following
any
fittings.necessarily
points
designated
receive
test
more
to verify
or
the
int,-grity
operation.
tests.than
the
The
permanent
of the
test
Separable
i
type
1
typo
fittings
]
i
leak
paths
1
!
_
due
to.the
..
associated
•i
fitting
more
complicated
with
the
s/tubing
:
joint
interface.
would
and
The
potential
test
failures
conditions
procedures
Burst.
Pressure
Max.
Min,
Operating
Operating
the
new
Class
I
I
l
i
..
equipment
4000
8000
Temperature
Temperature
references
were
developed
-
as
t
psi
psi
16,000
the._ppropriate
and
for
include:
Operating
Pressure
Proof
Pressure
Using
or
!
psi
450 °F
-65 °F
a guide.,
to generate
the
the
test
most
methodS.
meaningful
i
i
|
h
i
[,
*Applicable
to
separable
designs
only.
!
B
ii,
i
d
A_
!':
(,
LSCU_,'-_ed in _ro.a!c,r
_0-
detai]
in
sub-
s_ ClO.ent ._Octions...............
Ill addition
to the
new
£Ltth_g
dcslgz_s,
il. was
,_lso
;rgreod
tl_at
no
" u
..
rcli_l)le data existed
on the MS_flareless
tubing-, the combina.tion
tested £o appropriate
of which
would
specifications.
fittings and 304 1/8. 11 CR];_S
fuznish
usable
Since..the MS
baseline
data if
flareless fittings have
i
!i
' _i
gained
decided
considerable, experience
to date in the aerospace
to subject .similar test specimens,
to the same
series of .tests with the following
Ope.r ating ..Pre ssure
_ '.
i
i
Class
6000 psi
Bur.st.PresSure
Max.
Operating
12000 psi
275°F
Temperature.
the subsequent
sections.
with MS
unions,
IIteSt conditions:
300.0-.p
si
Pr.oof Presaure
Min.
Op_erating requirements
Temperature
The remaining
: ! _
assembled
/ield, it_3vas
-6.5°F
are discussed
in detail throughout
.......................
'
I!A_'I'A
iii.
i ' "
i
( ,
f,
',
Orle. of th¢'..prograrI_
lislc,¢l
as
.requir0.rnel_ts
_' "
_i
_ ',
Militar Y Si)eC ifiC atiOl'lS
[_. ,
_ '
MIL-F-IBZ80
MIL-F_5509
i
was
a-|'_-VI(_,W,_]f
rc'.latc_d
th()
dala
followS:.
_,
_. _, :
..,'
It I,',V lid W
Fitting, Fl_reless Tube, Fluid. Connection
FittingS, Fla.red Tube., Fluid Connection.
MII,_F-Z7417_
Fittings
9
Rocket
Engine
P
Fluid Connection
!,
Ii
r.:
i!
!!
!'i
!i
:
_.
!:,
_ ::
, i
Milita rv Standards
MS 33649.Bosses
Fluid
Connection
- Internal Straight Thread
MS
33566, Fitting, Installation of.Fla-reless Tube - Straight Threaded
Connector
AND
10064
Fitting,
Installation
of Flared
Tube,
Straight..
Threaded
Connectors
MIL-STD-810
Environmental
Test Methods
""
i:
!
]
NASA
Sp.ccifications
Ii
•
KSC-Ft,2.4 -Fittings/Pre-ssure
MSFC-SPEC143..Fittings,
Connections,
i"
Industry
i'
•
:i
Conne_:tions/Flared,
Flared
Tube/Premium
Spe cificatinns.,fo r
Tube
Quality/Pressure
.........
Specifications
,:i
.....
i
i
""
' i_..!
,! "
ARP
899 Connectors
ARP
1055
Technical
(Proposed)
Fire
for Fluid System
,
AF
AeroSpace
RPL-TR-65-t61
i"
_,
RPL
'_"
I.
AFRPL
Resistance
Components
Fluid. System
- Permanent
Type
and Fire Test
Requirements.
Reports
AFAPL-TR-69-67
:!i
,,
and Connections,
Titanium
6AL-4V
VehiCle
_.
Exploratory
Hydraulic
Developtnent
Plumbing
Work.or_
fqr
Advanced
Famil.ies
of
Welded
Fittings
for
Rocket
Fluid
Systems
64-24
Applied
Research
and Development
on Families
of
Brazed
and Welded
Fitting_../.o.r..
Rocket
Propulsion
Fl.uid
Systems
TDR
TR
65-16Z.Development
Rocket Fluid Systems
of AFRPL
Threaded
1_ t
_ _,
............
Fittings for
/':_ l
!
I
..................
i
I/
'_
_
ICI'I)
q'l)R
ASD
TR
43-_111r_
and 11
l)evelOi)l_ent
61-48S-Metallic
of Mechanical
Boss
l*'i.(tings
Seal. Evaluation
I{P L TDR
64- 25 Jke rospa ee._...l_luid
Compone_!t
Vols 1 and 2
NA
Evaluation of.AM
273-0001
Union.,
60-648
and
- /Jhas_,s
T,est.Program
De s igne rs Handbook
iI '
I
;!
Systems.ApplicaJole
to XB-70
Airplane
TII 59-.267 Hydraulic and Pneumatic
Fitting _nd Tubing
Program
WADC
TR
:
In addition, the .following documents,
_!i
NASA
55-163
TR-gZ4-D,
Modified
Testing
"Test
of Me.tal Boss
Report
Seals
were
27,
Test
.
reviewed:
.... Lockheed
Fittings." - May
AN
..................
3[_0-CRES Hydraulic Tubing_and
I_D
Brazed
Tube fo.r 4000 PSIG Hydraulic
WADC
_.
[
Industrial
Products
-
1966
i
i
NASA
i
NASA,
CR-952,
'"Leakage
Testing
Handbook"
- April
"P.roceedings
of the Conference_on-the
Fluid Connectors"
- March
1964
1968
Design
of Leak-Tight
_!.i
October
NA-66-11.41,
i. "!
[_
12, 1966
"Hydraulic
WADC-TR-54-189,
in Aircraft
Plumbing
"Development
Repair. Kit Using
February
1968
Adhesive
ASN-Jlg.-Z0--70-Z,."F.luid
Index of Minutes"
AFML-TR--.71_156,
BAC-SIIAU
BAC--207
ARP
J.
Vehicles,"
"Theoretical
Investigation.of Optimum
Hydraulic Systems"
- January
19.54
LTV-Z-501000/8R-Z479,
T.
for AdvancedAe_ospace
"Diffusion
Bosworth,
(30.31)
i, "Groove
Power
Boeing
12/14/70
of.Hydraulic
Bonded
Permanent
Technologies
.Welding
System
Joints,"
- SAE-A-6
of Wrought
Pressures
Field
Proposal-
Committee
Ber iIi_,"
Company
Std. "Seal,
Configuration
Boss,
- Titanium
Titanium"
BoSs
.,
.Seal"
994 (Proposed. 27 August-1971)
SAE A-6
Committ0e
"Recommended
Practice for the 13_sign of_Tubing InStallations .for Ae r-ospaco..
Fluid Power
Systenls"
!
7_
'_.
- _
.
:
.7•
•-
NASA
- T.ech.
Brief
7]-]07X_(_,
"Criteria
for
Vi.bration
To,_ting..,"
Au gu,_t 1,9.7]
|
-
_;"
Meeting
Minutes
il61...
'i
Meeting
Minutes.It70.,
SAE
G-3
Coml_itte.e
- July
!971
Committee
- March.1971
i;
Meeting
SAE-A.6
Minutes
- "HydraUlic
AFSC/ASD/ENJPF
i '
Papers
for
SAE-A-6
Titanium
July
1971
Committee
Tubing
& EittJng
Conference,
"
Meetin.g
!
".
"Fluidic Gas Power
Sources,"
Arsenal
- October
1971
-'
"Need
ments"
1971
i
3
for Particle-Size
- L. D.
Dr.
A.
E.
Schmidlin
•Standards. in Fluid
Carver
and M.
- Picatinny
Contamination
C. Lambert
Measure-
(HIAC)
- October
•
...
"Long
""
Life Dynamic
Seals for. Hydraulic Flight.Control Actuators and
Other High.Cycle
Rate Components,"
Hans G. Krause,
Boeing
OCtober
Company,
.
Review
..
phase
•"
but
with
of the
the
of the
above
program.
most
significant
respect
to the
was
number
1971
listed
Several
docun_ents
benefits,
the
and
....
large
type.s
was
were
covered
derived
under
from
a separate
the
Data
degree
of difference
that
of tests,
methods,
procedures
..
Review,
.._..:
existed
l
t
and
1
..
equipment
used
created_significant
_o
impossible
task
by
each
facility
changes
because
in testing
in results
there
is no
and
standard
tube/fittings.
renders
t0 use
These
correlation
as
differences
of data
._
an
!I
a basis.
_r
i
i
(
[
I0
l
_,,
,
IV.
"_.
Tho
approval
such
&roposed
test
TEST PROGRAM
program
was
fo.llowing consideration
prepared
of the Various
and
subrnittechfQr.,ASD
f_ctors
that Are required,.__
as:
i!
_
'"
-
All Class
I fittings to be pl;ocured
must
be compatible
with:
I....
(a)
(b)
":"
-
Armco. ZI-.6-9 CRIES.tubing (,6, -i0 and -16)
Titanium
3AI-2.5V
(-6, -I0 and -16)
All Class
I fittings shall be tested to:
m
,. :
:
4,000 psi operating pressure
-450°F max.
temperature
""
-65°F
-
il
i:
_"
;
'
Class
min.
temperature
II fittings (MS
only) shall be tested to:
+275
tnax.
temperature
3000 °psi
operating
pzessure
-6_5°F rnin. temperature
-
.,.
Class
II fittings shall be tested with:
304-I/8H
CRES
tubing (-6, -i0 and -16)
-
All tubing_to be purchasecito
-
Minimum
detailed specifications
.m
:
_D
....
'
..
Each of three
material
-
Each.vendor
Sizes:
i
,!
wall thickness
-
sizes of tubiNg.to_.u.t$1.ize
one wall thickne.ss p.er
must
-6,
the
Each fittings
vendor
abovc
for test tubing, to be . 0Z0"
-10
and
be.
capable
-16
for
of providing
separable
with
and,three
mu_t the.be twoable.types
toassemble
fittings
in three.
and/orpermanent
size.s_of
(orhave
fittings
tubing
noted
assembled)
T.he t_st
design.s
:
%
as economically
each
design
to receive
boss
designs
would
fitting
the
appr.opriate
be selected.and
in Table
are
each
manent
and
separable
-10 and-16.
the
304-1/8
total
separable
with
.type
the
separable
requirement
they
will
a.summary
and boss
receive..
will
MS fittings
fittings/
EachlOer-
be tested
will
witl_
In addition,
with
separable
tests
fitting_.,
in Section..Z,
MS flareless)
H tubing
as many
in accordanze
pe..rmanent,,
(including
and
listed
to simplify.the
as to which
fitting
The
tests
tested
1 wherein
designated
include
of the permanent
In order
designs
-6,
l)_ structuredto
possible
requirements,
is presented
i,
program_was..-to
in sizes
be tested
at
,:!
the lower
pressures
and
temperatures.
[
._
Baseline
data
_i
per M.IL-F-18280;
i: i
using
Class
shall
be acquired
on MS flareless
sep .a,_rable fittings
these tests shall be conducted on sizes (-6, -i0 and -16)
II temperaturepressure
conditions.
However,
detailed
test
r
'_ ', i
i
D.rocedureS will be developed for each test that can be applicable to all
"
types of fittings.
The
j!
tests
and
test plan
test
was
Structured
! i
combinatiOns
mating
,
'
consist
parts.,
as
a minimum,
the following
requirements:
RepeatedAssembly
shall
to include,
of aSsembly
Test (for se_parabledesigna only) -__
This.test
and
of maximum
disassembly
torque,
and interchange
a minimum
minimum
of mating
torque,
parts
of 8 times.,
relative
shall
Various
rotation.of
be used.
Seal
i
:,:
rep..!_acement,
if required,
instructionS.
During
the
shall
course
be in. accordanCe
of the above
with.,the
assembly
manufacturer's
procedures
for
.......................................
the
...............
1̧.....
!
'"
TABLE
:
TEST
!
!
•
_iv-
'
!
; _,.'
1
RI_OGRAM
SUMMARY
permanent
.........
2 1-6-9
Titanium
Te st
Separable
"
2
......
21 -6-9
Titariium -
i
i
*Repeated
A S sembly
0
X
X
X
X
X
X
i ""
Proof/Burst
ii *.
Rotary Flexure I ....
X,
X
X
X
i
Rotar.y
Flexure
II
X
X
X
X
""
Rotary
Flexure
III
X
X
X.
X
:_
_;
Imp.uise
X
X
X
X
_ _
..
__
0
0
X
X
X
X
X
X
0
0
X
X
X
X
X
X
O/X
O/X
O
O
i i
ii
.
].
Pressure
0
;....
IL
i
i
!
I
! ii_
--
:::Misalignmeut
;',"Tube Restraint
and
_
""
Thermal.
-.
5_toc_
and
Stress Corrosion
":"
Vib ration
Fire Resistance,
,'
il
__
::,'AssemblyTorque
Creep
and A_xialPull
................
X
X
X2
X
_t
_.
/
1
!
*2%pplicable.
to Separable fittingsonly.
;:"*Theseparable tests also apply to bosses.
...............
13
i
aS_emblytorque,
tubing,
test,
when
sure
shallbe
'
other
times
,
two
test
the
'
articles
•
times
fitting
class
under
design
operating
• 7
tive pressure
'
temperature
• '
after
the
intervals
throughout
each
size
program.
_tg.in_g_khe
valuo
.... _Proof
test
and
the
and
Test
test.
tubing
of two
material
tested.
is to be
conducted
shall
be
temperature
pressure
pres-
A minimum
procedures
operating
a test
a minimum
in the
of two
of
at
developed
of the
times
the
pressure.
Test
- Burst
fitting
design
operating
specimen
has
Impulse
Test
pressure
testing will be conducted
under
conside.ration
pressure.
been
This
exposed
a test
pressure
be
conducted
shall
highest
operating
operating
of
tempera-
of I0 hours.
per lN41L-iF:-ISZ80C,
shall be cyJzled during
tirr.esbetween
and the highest
consideration;
test
to the
an_bient temperature
-65°E
arid
- This test is to be conducted
wave
as.a destruc-
899 as a guide and utilizing the highest
class
ture of its class for a period
•under
noted
testing
highest
and
test using ARIa
.test
a "square"
for
stresses
proper
- Iaroofpressu.re
the.
PresSure
the
to its
of each
consideration
of the
times
on.the
conclusion
Test
a guide
b(_ recorded
iS torqued
used
during
as
four
be
Pressure
Burst
_
nut
at_equal
shall
ARI a 899
shall
at_the_
spaced
appxopriate
with
coupling
applied
Proof
: "
data
fo_ 250,000
Figure
2
as a guide.
the test a minimum
operating
at least 75 percent_of_th_
temperature
test time
cycles using_
The
of five
of the class
shall be at the
i
i
highest
4• $
_m
temperature.
.The
impulse
rate
shall
be
no
greater
than
70
cycles
f
:i
Id
p_'l'-n_i_mt(:.
;
and
A m[z_inaum
tubing
material
of four
te._t-zLrticleS
Sllall
be! used
r()r (,ach
.q_ze
to-steal,_
Gaseous
Leakase
Test
- The
contractor
shall
devise
a ._uitablc
, !
!_
i
gaseous
leakage
Tes.ts
shall
of fittings
test
to be applied
be conducted
under
at the
consideration
at appropriate
highest
times
operating
and at both
during
t.h_¢,testing.
temper_atu=e
100 psi
and the
of the
design
class
operating
[i:
il
i
li
i
_ i !
•:
:
pressure.
Rotary
Flexure/Fatigue
shall
be conducted
(-6,
-10
by the
Tests
contractor
--StresS/c.ycle
for
fittings
(S--N) fatigue
mated
with
tests
tubing
of. sizes
i
_
and
-16_.
MS flareless
In addition,
fittings
An internal
pressure
these
test.s
nnated
to MIL-T-6845
equal
to the
design
shall
also
(Type
be conducted:on
304,
operating
1/8
hard)
pressure
th_ ......
tubing..
shall
be
loads
super-
il
•
applied
to half
the test
iI
imposed;
_tests
on the
be tested
with
specimens
half
of the
pressure
sufficient
only
be perfo_rmed
using
the
rotary
will be used,
v.i_._,
room
of the
class
of. fitting
other
with
te_mperaturcs,
flax.ure
temperature
under
S-N diagraxns
specified
compliment
bend"ag
of fatigue
to determine
technique.
and.the
conSideration,
will
the
highest
For
be constr.ucted
specimens,
leakage.
Two test
each
for
tests
shall
All te.stS
l
will
1
l
tempgratures
operating
size.,
l
and
t
temperature
at both
performed
]
with,
i
!
and tests
performed
Thermal
as a-_uide.
m,
t
wi.thout,
Shock
Test
internal
- This
pressure.,
test
ig to be conducted
i
using
ARP
1
1
899
.:.
t
i
Vil._ration
i
devised
design
MIL-STD-810
!
Fire
with
i. _ _
c_mtractor
to loosening
.i
I
i
by the
to-dc:termine
and
b shall
failur_
Test
equal
to the
using
susceptibility
subjectecLto
as a guide
- This
developed
the
when
be used
Resistant
procedures
pressure
- A Suitable,test shall be.
"l'e_t(separaJ_Ic.designsonly)
for
test
rating
s_i_arable
a vibration._ez_ironmc_.nt.
this
test.,
is robe.conducted
as a guide
designope,
_f.each
ARP
pressure
in accordance
-t055-Cla_s
,'_A" test
at a
and. a fluid
temperature,
of
, _
i
1
,_
the high_st
operating
temperature
of the
class
of fittings
under
consideration..
Fluid flow rate in gallons per n3.inuteshall be equal numerically to the square
'
i
:..
of the inner
' '
diameter
Axial
the
ability
attached
Pull
ot the
Test
of.each
when
expressed
contractor
to resis.t
shall
an axial
1
in inches.
devise
1
a test
tensile
load
shall
devise
to determine
applied
to the
tubing.
to determine
the axes
- The
design
MiSal)_nment
.i
tube
the
Test,-
The
ability.pf._each
of the_tubes
are
contractor
design
not
to accommodate
a suitable
test
a condition
whereby
,
collinear.
I
Tube
devise
Restraint
a suitable
accommodate
'
t
""
of the
initiated.
The
in order
.(Separable.
test-to.determine
a condition
surfaces
match
Test
fitting
the
wher.eby-the
are
not.in
to make
ability
tubes
contact
assemblyproce.ss.,
designs
when
therefore,
only)
- The
of each-separable
are
restrained
the assembly
must
overcome
contractor
shall
design
so_hat-the
to
mating
process
is.
this
mis-
i
i
!
•
t1
!
a connection.
I
I
'
I
J
!i r
ILW
,_.
q
Strauss
with
procedures
immersion
,_
Corrssion
tive
developqd:using
cyclih_g
Alternate
corr-osive
".
cOnsistS
contractor
which
may
is
Load
shall
occur
of
conducted
a guide
of tlic
except
the
te_
relaxation
as a function
sprhy
article
the
it to dry
duration
of the
designs
test
to_determine
the
of the
structural
loads..in
time
and
lest.
in a rcR2'csenta-
(separable
of elapsed
alterz_ate
and_allowing
for
(Creep)
a suitable
that
salt
the___p.ecimen
Test
in accc_1'clance..
sta_dard
continuously
Relaxation
solely
as
submerging
repeated
resist
i_be
in place
extracting
devise
separable:flesign__to
•'
then
T_b.e cycle
test
ARP.-8-99.
be used
medium,
Structural
The
shall•
_mmersion
thoroughly.
_:
_l_e_t - TMs
test.
only)
ability
-
of each
the
elevated
joint
tempera-
tur_.
Rotary
""
the
endurance
:_
in Rotary
Flexure
article.
any
l eakag_e
_.
not
contribute
for
this
loads
shall
_
"as
be
a test
These
emphas'_ked
:
sufficient
might
a guide"
the
and
and
shall
internal
occur
of Sizes
the
be
conducted_s_
pressure
during
(-6,
procedure
the
were
item
,10
and
the
of the
joint.
submitted
was
of verifying
tests
specified
as
of each
be
test,,
to..impart
flexure
applied
pressure
.
test
to detect
stresses
Tubing_gnd
shaLL
fittings
-.16)_
to [ill_ach
for
in each
therein
/atig.ue
shall
waS.developed
referen_d
every
by
poSnts
to the-loading
procedUres
that
tests are for the purpose
tube-to-.fitting-attach,
measurably
test
me_s.
.TeSts
to all
which
First_,
""
..
- TheSe
e. stablished
Fatigue
Although
!,
Test
limit_tentatively
360 ° bending
_m
Flexure
ASD
tt_st
of the
appro.val.
were
above
It mu_t
used
with
quest_onedasto_.._,_why
require-
_:
b_
!
caution
is it done
this
1
:t
I
L.I
"
.
.
.._'
,............. .
-
, ,
,
--_
'!
l..............................
i T
17
i
°.
,,
way?'.'
"
i
For
or "is
some
the re a bei;ter
tests
way':'"
no.re/erences
or "wtlat_a_rc
exist0d
to be applicable
_,
specifications
"_
possible::
we re
to tube/fitting
revised
information
during
or data
design/test
the
was
hmkir_g
and SwRLprocedures
"
'de_veloped
we really
course
cOntributed
for?"
for these
were
]
criteria.
Several
of tlais program_and
who re
to aid
the
in composing
revision.
i
,,
Following
il
developed
completion
.in an effort
of the test
to determine
procedures,
_ logical
the test
combination
sequence,
of some
was
te_t
.
eJ
specimens
in order
to achieve
_'
Unfortunately,
any
.
unfit
other
t,ests
from
the
for
severe
the maximum
test
utilization
on a specimen
and therefore
twelve
of each
test
normally-renderS
(12)
separate
specimen.
the_specimen
test
sequences
kl
resulted
: _-
are
covered
in Subsequent
Test
..
investigati0.n..,
equipment
to be the. area
These
sections
for
of greatest
each
with
test_pr0-cedures
greater
of the above
difficulty
due
and seq.u.e.0.gg..s ...................................................
detail.
listed
requirements
to the variation_
appears-
in interpreting
the..
:
""
test
Specifications
that
is fabricated
mentS
*"
videdthan
!
sented
s_
and
in detail
l
for
with
equipment
flexure
the axial
ARP.
to the
spe.c.i.fications.
teats- rotary
is used
as the
is subject
others.
of. all test
_"
.such
designers
In some
The_items
that
reasons
fo_.the
revea.led
and
pull
rotary
that
se_ries.
Every
test
interpretation
specifications,
are
critical
deSLgn
only
flexure
apparatus
one
of the .-require
more
to the test
and/ar
details
must
operation..
machine.would
fatigue.
The
an.d...t.uhe......r_.st.r_.ai..n.t...t._...stl.s.
or maGh.ine
are
pro--
be-pr.e-
:
Completionaccomplish
tensile
.......................
test
two
machine__
i
!
:',._
' "
'l'-h_'_MS ('itting
out Of the O(luipnq(;l_t
as new
Cckuipment
\re re fabricating
:
In this...naanner
..1)as01 in_ _ data
anxt solving
is put
and
both
towork,
asse_mabling
the equipment
fittings
w(: ,mz_t_:sl_zd
'
f(Hl_wi,_,_-, th(_ ch_,ck-
the nume,'otis
Tl%is was
the. £ittings
prol)lc_nas
axzconaplishc,
with
and procedures
that. alv.,ays
d whi.le.th(_
the tubing
are
_ risL_
%'(_n(1c)rs
sp(_,cinqens.
thoroughly
tested
_
i
_
.
prior.to
_F;-
"-:i
i
'
i
_
on the
21-6-9
and
3AI..-2.
5V test
Sp6cimons.
i'
1
T
.
embarking
•
i;
el
L
19
i
,.
V.
i
qil_..objective
was
of the
to obtain answers
_.
(_L_.__Will
i_.
I
.
(b)
r
:
Ii . .
i
i
!:
i
I
i
i i :.
!
(c)
to survey
and
Does
exist
a specific
for.both
field
level
of test
time
method
initial.or
repairs
power
of power
fitting
industry.
r_equired
bc_
questions:
types
within.the
the. tube
specimens
constraints
of. the
of attaching
production
fittings
installation
program?
to_the..tubing
and depot/
9
Has:the
equipment
.required
for joining
been developed
-- and is it.operational?
i"
requirements
commonly
consistent,
found
tube
fittings,
to tubiag
In this
regard,
are_
with
in aircra£t
the
types.and
maintenance
Do the tube joining procedures
hazardous
to personnel?
....
(e}
Will the ,contractor
be-per.mitred.to.either
asSernb;e
the vendor's direction) or to ,witness the assembly
vendor's
(f)
Will the design
""
sure
(f)
IS the separable
..
(h)
What
""
During
anynew
..
to assemble
""
existing
I
ment
the
were
manufacturers
compatible
(unclear.
(at the
and pres-
In some
facilities
the
produce
on the
fitting
only_
as
cases
of information
tubing
specialized
often.revealed
if
or if special equip.ment-was_required
the
fitting
subcontractors
subtontrax:t
to the
with an existing boss-design?
for the -6, -i0 and -16 union fitting.s.?
"o,:-the_board",
fittings.
available
asscmbtc
design
are the prices
production
is
a.bno**- ' ty
in this program?.
the required.temperature
these contacts,_..an_exchange
designs
that
withstand
required
?
limits set forth in the test program?
;_
i'
incur any_condition
plant) of the test specimens
quantity
facilities
(d)
""
.....
IN!O.US&',.RY ......
requirement
_tl_e number
the
chaser
OF
to the following
available
'.:
SuRvEY
manufacturers
and
,.
:rket
any
fittings
way
utili.zc
utiliz_:chatever
whil',
he
(other
equip--
t
!
i
other.s_leZ-thapurdesires.
than
Many
of the
aerespace)
|
!
I
1
:
Z0.
sUct_ a,_ industrial,
m_nt,
etc.,
quite
often
automotive,
because
tlie
tl_,y
airframe
hc:av.y _;quipnac_nt,
report
the ac:roapac'e,
manufacturers
lmsc.'s,
surgical
equip-
fl.cdd is .ova rcaX_wded
dcvel.op..aJ__d
produce
and
tlieir.ow_--
.........
t'
!;
,,
¢
designs
and/or
_fit_tings.
Some
companies..tha.t...hav.e
predominantly
pro-
4
i:
duced
!
[ _,
aerGspage
market
because
'
was
: _,
,:
i
""
would
be selected
design.
This
secrets,
interested
....
Selected
vendors/designs
approach
vendo.rs...wanted
modate.
joints
for
received
with
designs.
exist
a selection
_ BaSically,
that
was
out
then
fittings,
some
changed
for
two
of the
based
advanced
.could
1
submit
their.
vendors
were
:
more.promis-.-
to an all-encompassing
to the extent
economically
on the
types
design
the chosen
be purchased
by industry
industry
a winning
contractor-furniShed
thar_ the program
was .made
Only
would
with
the fitting
vendors
etc.
•
reasons..
and issued
the participating
interest
four
noted
wherein
developed
assembly
to participate
Therefore,
of different
wherein
above
program
lea.ring
objective
induStrlal/automotive
evident
copyrights,
program,
program
was
that
designs,
this
evaluation
fitting
required
to the
and the
test
MIL Standard
program,
industry
""
:
anda
back
it became
competiti.ve
The.program
This
•_
in the
in pursuing
•-
_r
survey
patents,,
ingdeSigns.
swinging
of aCtivity
the market
not interested
trade
are
.of the lack
During
..
7
fittings
from
test
that
the
tubing.
more
accom-
optimum.number
(or d_signs-)
of tube/
today:.
g_
-.-
:"
_"
"
(
I
l
i
Brazed
joint
Welded joint
Swaged
joint
Shrink
fit joint
i
!
H,
..'.
i
,
•
'i!
:
7-1
Ia_.uddition,
jCbi.nt designs
gram
!
I
.
,were
there
developed,
hmv.e a. metal-to-_rnetal
selection
ts the
of particip.ants
MS flarel, oss. fltting,
All
seal
resulted
oftlm-designs,
in the
separable
joiiU
from
sclc:ctoxifor
fitting
joints.
wM.cli
s_,ve1:al
the test
pr.o-
The
final
in the,following:
)
i'b
!
i!
i:'
:
:_
,
i
L
'i
0 .
i:
-.
-
5 separable
designs
,
5 permanent
designs
.Zboss .designs
MS flareless fitting(separable) for baseline data
:
ll'
Tlie.
'
c[eW:lopn3cnt
i_ considered
to be
antieipated
series
i
that
test
•;
all
of the
and
using
tasks
future
the
within
fittings
will
d.ata
is u._ed
format
each.
the
be
will
be
Repeated
Assembly
(2)
Proof
Pressure
rest
(3)
Burst
Pressure
Test
(4)
Combined
""
(5)
Impu!s e Te st
i
(6)
Assembly
(7)
Axial Pull and Tube
is to M, c¢mdllci:ed
because
qualified
corrmlatabl.e
by_each
along
......................
specific
In this
.... e.sl_egially
vendor
it i:_
to._his
andeq.uipment.
The .following list oftest
II fittings are,.contained
test
program
exac__._tprocedure
(I)
,
by wliich
test2esults
test procedures.
and Class
key
all
tests
future
e uq_qipment
Scribed
one
hereafter,
of detailed
manner,
of procedures
if identical
with
procedures
the
.......
pre-
for Class
I
in this Section:
Test
(Separable
DeSigns
Only.)
6
i
f"
i
i
i
.....
Proof-Burst
Torque
Separable
(8.)
Structural
(9)
Gaseous
Designs
Test
Pressure
and-kgdsalignment
l_estraint Test
Test
(Separable
(,Tube Restraint
Fittings Only)
Test for
Only)
Load. Relaxation
Test
(_S_parable Designs
Only)
i
(i0.) Class
Leakage.
"A"
(ii)
Th6 rmal
(12)
Stress
(13)
Vibration
Te_t
F-ire ReSistance
TeSt
!
I
Shock
i
i,
e_
i
Corrosion
(Separable
Fittings
Only)
• _,
[
2'3
t"
,-
(14) ..Jltol:a,,y Flexurc
(1 5)
[
Fatigu.0
t
,,
Dev_e/opment
of. each
the
paragraphs.
following
of the above
listed
AsSembly
Test.
re,st
procedures
is discussed
iJl
!,
(1)
':
Repeated
determine
the
degree
seal_ after,
successive
The
objective
of deterioration
disassembly
of this
in.a
and
test
is to
Separable
rea ssernbly
....
joint
and
operations.
t
i.
Therefore,
a pressure
check
suc ce s sive -as se mbly/dis
i,
manufacturers
changing
!,
_i.
mating_partS
operations
laboratory,conditions
and
data
capability.
minimum
the
,,
This
is a rather
deterioration.
the integrity
,
with
This
ProofPressure
result
a close
test
s using
the
that
under
fitting
Inter-
are
of
and
of the
fittings
requires
a
inspection/-examination
is applicable
-
controlled
in correlatable
test.and
of four
values.
an indication
simple
each
variations
repeated
furnishing
of equipment
only
to the
for
separ-a_e
_
Test.
"as-required"
i
while
type of fitting.
(2)
ope ration
offers
are
will
after
of torque
also
These
repeatable
:
as se mbly
recommended.range
the
concern.
is perfor_ reed
This verificationtest is to be used
throughout the variou_ te_t sequences to verify
of the
but more
eSp__cially
for proof
pressure
fittingtubingjoint
following
is
combined
at. any particular
a critical
with
test.
the test
The.actual
for
burst
point,
test
pressure
i
.
-
. ......
,
• ........
/
I ,,
24
as noted
'"
in
i.?rovodure
desigi!ed
for.-a
must.be
provided
a failure•
protected
maximum
'['he
of 30,000
of the
32/_ehigh temperature
.te,_t ecLuil_m_:nt
psi.
Ad_quate-_rotOcLian_
equipl_ent
in tlu'
heating .system
fires.
.Proof pressure
pressure
prior
of
l_c
pressure
so as not to
is defined as two times___ ..............
lOroofpressure
fitting/tubing assembly
_,venl
must
that it is sea.led tight enough
suppor.t combustion.•
i,g.'
A CO 2 fire .......
should be installed in the burst
or insure
the operating
Imrsl
oil Spray_to prevent
fighting system
i
4,
in design,
from
chamber
No,
to normal
can be applied to any
use without
concern
i
:
of pe rmanent
(3)
damage,.
Burst
Pressure
Test.
times
the designated
Burst
pressure
is defined as four
I
!
assembly
must
opera,ting pressure.
withstand
four times
However,.each
operating
pressure
(:
!
l
i i
without
failure
test series,
but
with
considerable
the destructive
burst
deformation.
During
this
test _villbe used wherein
i
i
the assembly
i• :!
and held for ten seconds
increase
is pressu_
ized .tofour times
priorto
continuing
operating
p re.s_.uze
the pressure
to failure of tube or fitting,. This particular
proce-
i
dure
i
is also used
following
to new
_,
4_
to
to study the deterioration
a.s_.ries of other type tests,
sDecin%ens.is.noted
test in Test
Procedure
No.
The
in the combined
4.
in an assembly
actual burst test ....
proof
and burst
,
ii'
i:
25
•
(4)
Combined
Proof
and burst
pressures
snquenc.c..
Most
witliout
,
and
all
'
i
times
Finally,
the
occurs.
These
i,
The
to two
times
in.lo.gical
the proof
before
for
test
is precon-
operatingpre:_sure
pressure,
and
going
to thr_..:
a 10-second:pause.
until
a burst
must
be new
or damage,
while
Test
pressures
follow
tlse.Specimen
specimens
to verification
for proo¢
willpass
is pressurized
test
they
periqdof'time
operating
SpeCimen
actual.tests
sinc_
'_l_ercfoa-e,
recommended
and four
failure
Speci .mens
Procedures
before
during
with2 and
or after
the
test..
(5)
Impulse
Test.
The
requirements
the test
the
required
not
receiving
rate
impulse
The
pressure
rise
maximum
pressure
was
time
clean
designed
around
apparatus
with
assemblies
was
test
first
However
with.a
energy.
was
in MIL-F-18280.
the_impulse
spike
test
presented
of rise,
pressure
to zero
1:
assemblies
the
for
initialpressvre
..
fitting
he!d
operating
•
combined
and then. taken,
the
,
were
ditioned
3 apply
!
_'
Test.
any problems..
out any priortests
. .
Burst
we found
energy
rise.
apparatus
to insure
and that
sharp.
that
the
rate
imposed
bythe
of 180, 00Opsi/second.
thereby
was
that
containing
modified
the
Lat@r
pressure
it was
found
.The- .....
negligible
to reduce
assembly
the two-step
and
specimenswere
supposqdly
too sha.rp,
and
instrumented
after
i
the input
received
the
reduction
the{ the
Boeing
I
,,,,
i
t ;
Compao_.._a_i
al ,_o inve,_t_gath_g
_ented
Paper
in SAE
sure/time
curve
preSentS
the. SwRI
700789.
required
thi s sanv'
:',_ l,:igurc
per
in the above
i;
'
ment
with
i:
i
recommended
i:
_
noted
the
I l._re_ent:S
MIL._F-18280,
recommended-curv.e.
sents the type 0fpressure/time
SAE
paper.
impulse
pressure
t lw_ x'y a,_ p rc-
arid
The
curve
The
.t.hc p_.x'esFigure.2
dotted
-
line.repye-
recommended
t
by Boeing
Institute is in full agree-
wave
shape
for
testing
as
[i
Ii
SwRI
by
duming
this
Boeing.
The
program
used
impulse
the
tests
c.onducted
pressure/time
by
wave
shape
I
i
i:
_
noted in Figure
_i_
(6)
ASsembly
Only).
2.
Torque
TheSe
and Misali_nment
two tests were
for the misalignment
;
disassembly
torque
is to determine
on the separable
satisfactory
how
combined
test,
The
purpose
great an angular
The
(Separable. Fittings
because
test could easilybe
fittings and
seal,
Test
used
the test fixture.--for the assen]bly/
of the misalignment
test
o_fSet could be imposed
still effect an assembly
question tlhat requires
and
consideration
is the length of the half_of.tube on the deflected half of theun{on.
The
shorter
and therefore,
Thcsadata
the tubing, ihe less the bending
the more
accurate-the
arc prin_arily
for design
"
i
deflection
1
angle at the interface.
data, but are also
i
•
_"
::'.FutureAirplane
Hydraulic
and.T6sting
Criteria
by-R.
de1" Ve lden.
Distxibution
W. Mutzke,.
Systems
Design, Developments
W. G. Nels_on
and.J,
ri_ Van
I
;
I
1
-.
• :T
/'--3_.3. TO1_ PERC};,_PEAK.
#
"
'r_ l_A_'z
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s,,,opJ,:
oF'_',,,rs
C,._Rvl.:
_I_._,s_:o_iI_s
.To
/ S
i
i
'
11,3
....
"_----5
•
'
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,., ,,
125
-.
1OO
"
PERCENTO_ CYCLE.
_'
o
¢,..,
_
"
/ -
"
•
,
'
WORKINGPRESSURE
75
50
O
:.
_
25
,-_75
_
""
[
--_'q--='--F----
15 PERCENT OF!.CYCLEMINUTE
.- 1 CYCLE
65
!
PSI MAX
HACK PP-_SSLT''_
"
"
J
THE CURVE..SIIOWN
,IBOVE[IS_,:APPROX_&.YIEP._RESSUP3E-.TI],E
CYCLE.
DETEPJ4L_,JD.
'_ BE OF PROPER SEVERI'f_"
.0.:_,"
_'_.._,_=
7F-STI:;3.._.
FL\?.ELESS
FITTIN'_
^¢
....":'_'
......IT _8 _:,_._!_RYC':{LY
Th:_.FF_SSLUn.E
PEAK%RISKS-ZD
143 TO 157 ,=_'_""
"........+
....A.T ,_0.
""_'_"'"_
r,.,,,....,_ OF "_
..... ..........
_L,ou,,_..,.,
.=?'_3S...,,j.,.=,
_ ''=".....,
POI.;,.
i
ONE._RV'DE_IPABLE PE[:EFIT:O SE "' "--" ":
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OF TEST¢_PERFOR/_D.ON n_.--.'_m,T_
,r_c,_ YACHI:{ZSWI.'.T,
BE .,,C_,
,,=.'u..
C0_,mAP._BL_.
i
K
I
FIGURE
_"
I
DYNAMIC.PILESSUR.E
IN MIL-F-
L\.iPUI,SES RECOMMENDED
]8Z80C
!
'i
F
i
|
"
_11t.
-
!7 7- _'7.-7_--.-,'.**%_:.....................................
• ,
I
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l:,'",."
l I-!.I
t
,.I
f"
!
_"
i
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I
I
..
:"
i
,
I.
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_l;
r_',_sC_r
ILL.._ .......
'
,
.....
.
r'-" :
l/, ! ::/
-
t- ,.#i '
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/
---,_,,<,
.......
,I,,
]
i,
i
L.:
I
"+'
.lj
'
I
.iG%
H__..o%
tiP" _._ -,I,.,tiil_
.......
......................
TI ,"vl E-
•
Recommended
maximum
energy-pulSe shape
Pulse shape used .by SwRI
Cyclic Rate:
1'
IL
iI
LIJ
.,
"-llv
I q.,,,..._:,.,._.,.
.....
PresSurization
FIGURE
•
i
I
l.,...
]
._,
'
I
..1
•
ii*_ I_'
ftl
f
• -
"
-
/
i_
- ?
'--',-,- -- _: ......
A!.J
[
l
/ID
o_-._:rr_
le
/
.--#
,,"1 t
fill
_009
;i!
2
PRESSURE
60 cycles pew u_inute
Rate:
192o000 _et"
VS TIME
CURVE
mi.>iute
L\_PULSE
TEST
,ll...,.
+.,i
..|lj
I'.s
I..-:i
': I.
29
usc:ful tO tlie mechanic
•
torque
I
measurement
and
,.
;_
(7)
.
i
,
'
i
lo0sening)
mating
of the
Separable
Axial
Pull
surfaces
test
on the
dUril_g
how
tubing
the
much
torqm
by the
assembly
assembly
_. (tight_l-in_
contact
and
surface
disassembly
,
1
fitting,
and
Separable
the fitting. The
iS to detc_rmine
is. impo.sed
of the
for
assembling
Tube
t
Restraint
Fittings
Tests
(Tube
Restraint
The
purpose
of the
Only).
is to determine
the
tensile
load.
required
Test
axial
to fail
pull
the
tube
i
i
_
fitting
_
: ..
manent
'
.
or
interface
to the .point
that
a leak
occurs
in both
per-
?:L
restraint
i,
•
and
_
separable
test
is
to effect
a seal
halves.
The
The
to determine
with
gap
fittings.
the
a gap
ability
existing
i_ increased
purpose
of-the
of the
between
from
..
separable
the
ze.ro
tube
two
to the
fitting.
fitting,.
point
that-a
seal
t"
cannot be effected.
..,
designer,
•-
assembling
the
This
data will be useful-t_the
manufacturer
and
the
mechanic
aerospace
installing
and
[
:
:
(8_
the_aeparable
Structural
Load
..
The-purpose
""
load
Relaxation
of this.
relaxation
fittings.
test
Test
is
(Separable
to-measure
in a separable
fitting
Fittings
the
after
creep
the
Only).
or
proper
structural..
assembly__
._
,.
torque
has-been
applied.
tensile
preload
at.elevated
pressure
teems
!
for
100 hours.
of stress
reduction
The
test
temperature
The
creep
attributed
is to be performed
and
is to be
internal•
with
proof
measured
to temperature
a
in
and
time..
•t,, I
'_
'11
.....................
(9)
',
1/ '
!
*"
Ga..,scous
l,eakage
test
is-.to-utilize,
tlaat
will
the
since
the
_:
:
de_gree
of the
Spectrometer
i
immersion.
_.,
method
because
"_
degree•
of leakage
!
bc..divided
,.,
assembly
""
integrity
into
for
,_
(10)
to the
Glass
"A"
to measure
,_
i
flame
through
men
is
i_ a
engine
revision
i
|
five
The
of test:
before
p,r_essure
the
and
resistance
of the
specimen
at 2,000
severe
test
check
.with
gaseous
or
leakage
second
after
new
aplMied
checl:
varying
is
to
fitting
to verify
a test
water
test"
the
in a mantlet
The
fitting
of this
assembly
a measured
parallels
purpose
flow
of oil,
pressu_
a +l/16.
the
to aerospace
design_
test
is
to a 2_)_(]IZ2F_
floxv.i.t____
",a--avhile the
amplitude.
found
conditions
fire
zone
in the event
of a fire.
ARP
10q_
since
much
of the original
clata--_atained
obsolete-when
by
the_bubble
to testa
at operating
cpm utili_ng
but
a mass
test.•
Test.
with
899 proppsed
of calibration
one
Resistance
minutes
agree
method
an,1
controversial
a bubble
not
l'e-akage;
proof
the test
vibrated
rather
types
fitting
Fire
the
for
is no
gasec0us
of the
does
oil
.te.st.utilizing
acc0mplish
detecti:on.
two
is.a
lc'akape
.qlmtc'tur,,
a v.iscous
to A_RIP
lead<age
InStitute
there
Tl_is
revision
gasecms
tlmle.cular
tlaan
of leakage.
simply
The
similar
eaMer
gaseous
and
of the'
¢.ff fiiac
proposed
*"
4.
purpose
openings
recent
elimination
The
a Suit,tblo.gas
penetrate
measure
'
Test.
speciThis
in
an
is a slatf,
nf
therein
is
of l_rtay.
_lh,,
]I
I
1
i
_I
';'
recol_n_(,ndod
r'. "
chan_;es
a_'(. included
in thL, test
procedure,
lind
C q U ip m e n t .s e l U.p.
q
(l l)
:
Thermal
Shock
Test.
'l:he
•
mine
ture
i
the
r.eaction.of
changes,,
tLme
:
of this
. ,
"
' ! :
i
specimen
from
test
is to detel'-
the
(12)
into
leakage
test will be used
mine
,,
to a corrosive
imme-rsion.
(13)
Vibration
surfaces.
test
Test
in a minimum
The
second
part of the
or
gaseous
of this test"is to deter-
fitting and various
This
interfaces,
test _vill utilize the. cyclic
of the assemblies
between
may
each
requir_e__zom-
a cut_axtay to determine-
of the corrosion
the
of
with a liquid medium
test with drying periods
(.Separable
is to determine
are first.subjected
pressure
purpose
and possibly
of penetration
and
t_e.sts_
The
environment.
plete disassembly
degree
shock
Inspection
liquid
to verify the integrity of the_fitting
of thg_tubing,
imm___sion
tempera-
with
extremes
A proof
Test.
the resistance
salt water
.extremes
specimens.
Corrosion
externally
cold to hot chambers
injected:
Stress
to severe
assemblies
the temper, ature
following the thermal
"
assen_lbly
and
using the_temperature
test also uses
!
f[ttil_g
internally
Test
to the air shock
li
[;
I'
the
both
air mediums.
_':
purpose
I
-Fittim,
into some
s Only}.
susceplibility
of the
Tim
the
/
uf the mating_
purpose
se_parable
of this
fittings
!
1
I_
l_.'
to possible
loosening..or..dama_;e
due
to the
vibration
test.
T},, ....
","
' I
,I
............
1
7¸
I............................................
_
t
32
l[owevez',
the
NASA
reconm_(,_mh'd
(]rit('ria
for
Vibration
T_,stinz.
!:
;
(Brief 71-I0266)
may
offer a future change..in this area
of testing.
:i
1
_.
Detailed
i
any
(14)
I
inspection
_amage
Rotary
of the
following
Flexure
fitting
the
Test.
joints
vibration
Tile
and
inUSrfaceg
will
reveal
testing.
r__otary
beam
method
of testing
i
Will he used
i
throughout
test and the fatigue test.
equipme_nt
One
poorly_aligned-re-st
halves
Basically,
of the more
specimen
of the.assembly
could be solved
alignment.
I
More
in preparing
caution
speci_nens
other test._,)-to
insure
stress
:
deviation.
i
1
problem
such
a-s_pecimen
This
a zero
once
alignment
would
vary
the rigid
problem
the tail
by the degree-of
be exercised
by the
n_is-
vendors
._
for the rotary flexure tests (and all
rnoa'e uniform
has Been
T_,c_ strain
When
the orbital base-on
should
is that of
fixture that has a perfectly
on the tube.
stock; but, the eccentricity
results.- The
eccentric
solved by "a _'_raging-" the maximum
gages
I
the tube axis for both
to establish
by loosening
and
set forth in ARP
critical problems
is not colinear.
true axis,, it is impossible
tail-stock is clamped
'
the test procedure
s wherein
is installed in the rotary flexure
J
i
for the rotary flexure
will follow the recommendations
1185 (proposed.).
,:
this program
located
90 _,apz,::t
were
used
on
,'.............
..............
..................
l.............
.........
.......
_/....
3.............
7 T
....
I_
_
ii
rJ
, _i::
,-
the, initial
i
the
:
test sp0.cime_3 with
displacement
because
once-tl_e_,,2(10 rpm
accurate
the
cyclic:
steain
load
'n_asurc'_n_nls
gage
was
did
not
iml)osed.,
faI_'n
last
For
I,)_)
of
long
the
1
I
oMevate d tempe
rat,ure
.te_£s,
high
te mp,_ ?Ta.ture st rain
gage s
I
I :
:
!
we re required
data
:
can
to ,._et the
be used
as.the
initial
strain.
endurance
limit
The
rotary
data
for
flexure
the
S-N
[
i
fatigue
I,
;
(15)
curve
_Fatigue
Test
FolLowing
',
thereby
(See
Rotary
the.rotary
the endurance
tested
other
points..on
more
Flexure
flexura
limit
were
obt.ainin/_
oLthe
tests.,
S-N
at the higher
for
to establish
General
levels
the
Information).
_tl_at normally
curve,
stress
points
additional
wilLestablish
specimens
in order
__.
to establish
the curve.
4
i
i
A copy
noted
and/or
_o
t,
I
l
above
of the
laboratory
is included
equipment
list.is,
inthe
test.procedure
following
included
with
for
pages.
each
test
each
A diagram
procedure,,
of the fifteen
oft.
e test
tests
apparatus
!
i
-
i!
"
i:'
',L.,
TEST
'
.i
1.
1
P,KOCEDUKES
AND EQUIPMENT
35
_11' "
TA]3 I__1
;] OF
CONTENTS
i
LIST
I
OF
ILLIiSTRA
TIONS
36
!
1
INTRODUCTION
3?
i.
[
1.
R_EA
TED ASSEMBLY.TEST
'f
2.
PROOF
PRESSURE
TEST
47
[
3.
BURST
PRESSURE
TEST_
52
4.
COMBINED
5
IM.PU LSE
i
6..
ASSEMBLY
"
7.
AXIAL
8.
STRUCTURAL
9.
GASEOUS
39 .............
I.
PROOF-BURST
PRESSURE_TEST
58
>
•
TEST
65
I
_
_ [
I<
TORQUE
PULL
AND
AND
TUBE
LOAD
MISALIGNMENT
RESTRAINT
RELAXATION
TEST
TEST
78
9.1
TEST
I00
!.
i.
!
!
t
LEAKAGE
10.
CLASS
'iA"
i I.
THERMAL
iZ.
STRF_SS
k3.
VIBRATION
14.
ROTARY
FIRE
SHOCK
CORROSION
TEST
II l
RESISTANCE
TEST
117 .............................
TEST
126
TEST
134
TEST
FLEXURE
144
TEST
WITH
S/N
DA TA
DEVELOPME_NT
150
1
i' '
1
' i
<
36
_:
4'1
LIS'P OF.. ti.LU.S TI_ A T] ON,q
Fi u<e
1
R.ICPI_A TED
''
"
ASSEMEL5
' 'I'ES'['
la
ASSLMBL_
SPECIMEN
AND INSTALLATION
'[Y.
'
FACII,I
4?..
OF BOSS
'I.'],,S']?
46
2
BURST
TEST
3
DYNAMIC
PRESSURE
MIL-F-18Z80C
4
PRESSURE
5
IMPULSE.
55
FACILITY
i,
i
"
.
i i
IMPULSES
VS .TIME
CURVE
RECOMMFNDED
IMPULSE
IN
TEST
67
68
i
[
'i
TEST
FACILITY
69
i
. i
6
6a
:
!
.. TES.II
FIXTURE
TEST FIXTURE
BOSSES..
AND STRAIN
GAGE
LOCA TION
AND
GAGE
LOCATION
STRAIN
83
FOR
90
7
ASSEMBLY
TORQUE-MISALIGNMENT
8
AXIAL
PULL-
8a
AXIAL
PULL-TUBE
TUBE
TES_T_E_AF___LITY
RESTRAINT
8,4
94
RESTRAINT
FOR
BOSS
TEST
99
]
',]
i
.
9
STRAIN
RELAXA
GAGE
TION
9a
BOSS TEST
LOCA TION
LOCATION
TEST
SPECIMEN
........
FOR
STRUCTURAL
ASSEMBLY
AND
LOAD
STRAIN
]
i
104
GAGE
i
109
4
]
10
STRUC
TU_KAL
1.0a
STRUCTURAL
RELAXA
TION
RELAXATION
TEST
FACILITY
105
TEST
FACILITY
FOR
;
" ]
t
' '
t
I
11
BOSS
FIRE
TEST
RESISTANCE
TEST
FACILITY-.
,,
i In
FIRE
RESISTANCE
BOSS
TEST
;
[2 ................ LIQUID
°-
12a
LIQUID
SHOCK
SHOCK
TEST
TEST
SPECIMEN
ASSEMBLY
ASSEMBLY
11.0..........
1Zi
ASSEMBLY
i
125 .
lg9
- BOSS
i
.................................................
133
_
}
,t
i
......
! ....
1.............
i 1 I¸
1
L"
I,IST
[
,_
Fig, ure
OF I],LUSTRATION_
(Com.'d)
..
'
P,ig_
13
S.TRESS- C ORROSION
'I'EST _A C ILlTY
13h
STRESS_COIIROSION
BOSS
14
INSTALLATION
I38
[
:i.-
,.i
[
{
L_
' , ..
[4`¸
i)
!,{
[
14a
INS....'
IA LLA
OF A TEST
SPECIMEN
(TYPICAL}
OF
SPECIMEN
(TYPICAL)
........
INSTALLATION
SPECIMI'_N
A TEST
15-
ROTARY
FLEXURE
TEST
FACILITY
15a
ROTARY
FI,EXURE
TEST
FACILITY
TION
147
156
BOSS
163
157
- BOSS
164
'
37
I
!
_
TEST
PROCEDURES
AND
EQUIPMENT
....
,, .
INTRODUC
TION
The
ered
--
to be
•
.
development
one
of proc. edures
Of the
key
tasks,
used
within,
the
to conduct
overall
each
test
i
test
is
program.
e0nsid-
Although
-"
i
efforts centered.primarily
on developing
this particular
series of testS,
i
considerable
time
and research
was
expended
to prepare
a set of procedures
!
and assemble
associated
!,
vide for correlative
i_
newly
test equipment
that could be standardized
data and test results from
to pro-
future qualification tests on
developed.fittings.
[
One
of the greatest problems
voiced
by Industry
was
the variance
i
!!
;
in general
requirements
of the Inany
oi.tube/fitting assemblies.
meters
and procedures
Each
currently
manufacturer
that were
could
in use for testing
choose
the test para-
best Suited for their product
'
test it to the best advantage
!
today are virtually noncorrelative.
•
documents
Consequently,
or would
test data available on fittings
i
I
I
L
During
-
i
_
the review
test, it was
w_e_re obsolete
and ARP
thatthe
documents
1055
specifications
cases
requirements
stringent environmental
(propoSed)
noted
and in some
sure and temperature
i
reference
listed for use with
i
a particular
used
;
of many
conditions
inadequate
and equipment
because
of the higher, pres-
on tube fittings needed
of modern
currently
to meet
the
aircraft.
Only ARP
i185
(being revised) are considered
the most
direct
and deta{led tube testing specifications;
but, these two must
als0 be updated
i
_"
to meet
current
_
the documents
industry
rechuirements.
noted in the RIeQ were
• if
11
..
Therefore
"used
throug_boutthls
as a guide
for
reference
program,
only, "
I
11
.4-,
38
i
"
hnd
tl_e SwRI.Test
duce--the
1
_
Procedures
optimum
test
and
Test
results,.._._with
Equipment
skmple
yet
were
developed
technically
sound
to promoAhods.
t
:'
and economically
" _ ;
The
I
tionwith
i _
Procedures
' :,,;
other.
ment
constructedmr
equipment
the design
used
readily available test apparatus.
for each
of the Test
Specimens,
and Test-Sequences,
Industry
used,
test was
because
was ......
also canvassed
developed
in close coordina-
and development
each
is interdependent
to ascertain
and their applicability to the new
of the Test
types
on the
of current
equip-
4, 000 psi/450°F
fitting
(also referred
to as Per-
re quirernents.
The,following
formance
Evaluation
list of Test
Tests)
for
Procedures
Class
I and
Glass
II fittings
are
contained
in this section:
. _;i
: •
(!.). Repeated
Assembly
Test
(2)
Proof Pressure
Test
! ,
•'
i
_,
: I
i
i
;
i
,
(separable
(3)
(4)
Burst Pressure
Test
Combined
Proof-BurSt
(5)
(6)
Impulse Test
Assembly
Torque
(7)
Axial_Pull
(8)
(9)
separable designs only).
Structural Load Relaxation
Gaseous
Leakage
Test
Test
(I0)
Class
Test
(II)
(12).
(13)
(14)
Thermal
Shock.Test
StressCorrosion
Test
Vibration.
Test
Rotary
Flexure
Test
with
S/N
They_
are
which
"A"
Restraint
ReSistance
only)
Test
and Misalignment
and.Tube
Fire
Pressure
design
Test
Test
(separable. fittings only)
(tube restraint test for
(separable
designs
only)
,J
i
1
i
Data
Development
(flexure.
fatigue)
i
_"
i'
test
..
descriptive
t
objectives
to record
t
i
presented
and
layouts
the
test
in a format
equipment
of the
data.
requirements;
test
assembly
will
the
where
provide
test
a brief
p_lp_cedure
necessary;
arid
resume
of
itsetf;.
tl_e f0r_m
used
. L.............................
'|
I.
REPI_ATED
The
em
_-
ASSI'_MBLY
objective
in a separable
of. this
TEST
test
joint and.seal
is.Io..determine
the.degree
(or sealing surfaces)
Of deterioration,
after succeSSive
dis--.
!
assembly_and
reassembly
operations,
during
which
the relative positions__.
i"
'
_':
L o
of the mating.parts
are changed.
[
L
;-
i
A helium
leak test is conducted
test fitting_and aftereach
group_of
before
the initial disassembly
four successive
of the
assen_bly/disassembly
i
!',
1
[i
_
operations.
_The
manufacturer's
used
the tests.
recommended
range
of torque
values
are
ii
L
i.
i :
<:
i :
'
during
Caremust
tion exists on the threads
!
be exercised
or matlng-surfaces
to insure
except
]
I
that no lubrica-
that which
is,an
,
_
inherent part
The
of the fitting,assen_bly
specimen
holding
are similar
to those used
The
leakage
test is conducted
Test
Procedure
presented
such as. a dry
fixture and test chamber
in the proof/burst
later
film lubricant.
and impulse
illustrated in Figure
test facilities..........
in the rrlanner outlined in the Helium
in this
]
Leak
report%
)
), •
.p
,t -
A,_,,
[
l
, ,,.
d
.......
i iiiI
..... I :!....
"
"
PerformanCe
'
:
Eva luat:on
REPEA
1
_'
A.
! :
i
TEST
PARAMETERS
1.
Test
2.
Assembly
•
C.
Vendor
recommended
2. 2
Vendor
reCommend_e._maximum
4.
Relative
left/rigl_t
5.
Leakage
of helium
6.
Eight
TEST
APPARATUS
I.
Specimen
position
moun_ing
parts
of mating
parts
2.
Torque
wrench
(0-500
3.
Torque
wrench
calib
4.
Gaseous
TEST
PROCEDURES
i.
Instalhand_tightly
fitting
compo,
fixture.
compon.2nts
..
imper_fections
as used
for pros/pressure
and
equipment
apparatus
secure
of fitting
relative
and
note
recommendedposition procedure
relative
oLtubing
and
calibration
assembled
Ivlark
vendors.original
configuration,•
e.,
in. Ib)
ratima
test
and
(i.
operations
fixture (s_me
tests)
mout%ting
*'_.
of mating
assembly/disassembly
leakage
....
gas at 4, 00.0_pSi
burst pressure
Check
ambient}
minimum.
position
•
.--
temperature
2. i
Relative
rotational
nents
and tubing)..
2.
(room
torque .loads
i
J
i.
1
Designs Only}
MIL-F-18Z80C)
RTA
3.
_
B.
Temperature:
No.
ASSEMBLY
:FED
(Separable
(Reference:
Test
rotational
tubing.
these
test
Visually.
equipment
specimen
in spec. imen
andleft/right
inspect
positions
iittings
for
any
-
on form.
as-qembly_
of.complete
and
and minimum
fitting
tOrque
components
fitting
rising vendor-'_
value.in assembled
Match
mark
....
i
!
3-._
Install
spec-imen
conduct.gaseous
lined-in
!:
4.
i:
[
'
5.
6.
i
i
mounting
(heliun0
l_r°cedure
fixture
on test.chanaber
manifold
and
leak test at room .temperature
as out-
9'
_1
Remove
mounting
fixfiure,from
test
bench
or other immovable
base.
Chamber
Disassemble
fitting
and completely
parts.
Conduct
a visual
inspection.of
the seal a r_;a and threaded
portions
evidence
of poSsible
da_.oage.
separate.appropriate
removable
all contact,
surfaces,
primarily
of the fittings,
and record
any
Assemb]e
procedure
corr,..plete fitting
using
and.minimum
torque
and
secure
to worl_
'r
the manufacturer's
value.
7,
.
..
]
Repeat
Steps 5 and 6 three
more. times,
each time retaining
the
relatiwe
left/righ_positions
as established
in Step 1, but changing
the rotational
position
of the assembled
mating
parts.
This
completes
four assembly/disassembly
operations.
8.
Install
specimen
conduct
gaseous
lined in Procedure
9.
The
above
mounting
(helium)
9.
constitutes
one
.
recommended
"
!.
-
i
I
fixtur_c-on
test chamber
manifold
and
leak test at room temperature
as out-
cycle
(four
assembly/disassembly
and a leak check)
at minimum
torque.
Repeat
for the seceded cycle using the manufacturer's
mended
torque
values
in Step 6.
Steps 4 through
8
maximum
recomI
10.
Record
all
Data Sheet.
pertinent
data
or
remarks
on P,epeated
Assembly
Test
'
I:.
4Z
1
..°
::
_.,
. !7
E
,I_i
,
®
-'o
"JO
sb
DUJ
0
..q_.
.
-..t
DILl
N
_
.,
_
;
_
I__ ....
m.
_ l_b
J
•'i.:
.
<
!i
q
0
u
On.
o11-
aol
-
I
I
C',]'•
.3
4
_-
_0RIGINALPAGE IS
_F POOR _UALI'I2_
"
'
ra
_i
N
'
=
m
it
I
[
t
I
1 ............ ]::.....
....
L:_t'.,a,..ARCI'I
IHSTITIJTE
SOUTHWEST=e:'-e'=
DATI:"SHEET
"'
SUBJECT
_,
TI,:_''
SEO.tIK_N(:[::
i
(iAgI,;A._._...
I ,I,:A
)
1
i
I
•
4__
St4EET NO.____0F--SHEETS
PROJECT.
_,',-'_11
;-,_.:
/,,jc)_ ]
(i
I
I
DATE
)
( _I.:. 1_I,, El,, A._......
1' 1) A _.,HI,
I
)
}
tl
_L.Y.....JAUI,'__q
1.
__
1
BY
,i
a
;
S.l_] :"CIMF, N COI)E.-.NO,_:.'
MIN.
TEST
MAX.
TEMI?..
(F__):.
OPI'.:RATING
GAS
I?RESS,
L],.2AI<AGETEST
sce_
/SC_C
DATA:
Leak
--_-First
Assembl.y,
After...First.ASsembly
!
Rate
After
Second
Scale
Inspection
SECOND
11
..
....
Calct,,laled
Lc,flk
Rate
Series:
Assembly
Series:
SERIES
'rORQ[FI_
(lb/in
or
!b/ft)
_-
Avg. ___
Results:
SERIES
Inspection
"
scale
interval)
Readin['..
DISASSEMBLY
SERIES
Base:
!
Series:.
ASSEMBLY/DISASSEMBLY
FIRST
Calculation
(; mimlte.time
Temperature'.
"
Yiefore
TORQUE:
(]'si):
Pressure:.
: ,,
i i
:
'I.:OI_.QU I'.:: .....
Avg.
Results:
PI.',OOF
I"I:I:S:qI;RE
'F_:S']" RI.:SLI,TS:
BURST
PlII::SSURE
' rl,.,,,
.c.,.
Type
]',}::,qt, L'l'S:
FAII,URE
PRE,-SSUI_}_:
PSI
I:'C-,q
of ];'aihlrc:
.... i '
,-r-,
i_;_:.7.aa.
•
....
•
__
•
l
ML_
I I
_d
i/
i
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i
.: ;
! ,
SUPPLEMENTNO.
1
.
i
_-
to
REPEATED
TESTING
.......................
ASSEMBLY
TEST
for the
OFBOSS
FITTING
TYPE
PROCEDURE
SEP_R.ABLE
A SSEMI3LIES
1
4g
'
1_.'EJ._I:,A ;I.'ED ASSI',MJ,.I,
'_
.,._' 1:_1
;'. S.I._]_A.]{A],,I,I
BOSS
17,
(]_.(:fcr,,li((,:
l_.:gl
.. _f.'ES'.l;
;, I -._
].l..].iNt,
....
I_r_)c'_.,(.hl]'(_
AS,qI.;M1;I_]I.'S
l'(}r Tlnian,_;)
t
'j
ril'
_..i
.
A.
I'LS_[
PAI{.AMI'_'Y.Ii:R,q_
Sam 0
i
:.............
t3
_"
TES
i" A PPA
•
Acld
});- ,• •
Items
Adapter:
6.
Extension
men[
C.
].<A 'rU S
5.
'_:
.. _
._
TEST
a and.
6 as .follo,.,,,s:
Vendoz's
boss
adapter
of chamber
for
(see
recess,
manifold
Fig.
to 3/4"
pipe
....
to pl.ace
boss
(see
lri -._. In).
in controlled
cnviron-
la).
PlkOCEDUR.ES
i:
The
tube/nut
be
_.oted
!51!:
.'
ii;
no
reason
assembly/disassembly
and_the
in Item
boss,,
5 that
to remove
procedure
because
once
a/boss
the assembly/disassembly
it unless
the
component
is
is
the
same
installed,
joint
is bad
and
except
it must
is there
bel:\veenis usually
the
will
be
discarded..
]
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i
i: i
{:
_: .i
j
i
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i
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..
,_,,
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IT'IG-I.kB,E
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/"
£]k_Nf Y SIAND
_I;;CIMINST.AI,LATION
tCN
ASSEMBL,
!I
OF
BOSS
"
j
!
'
:
2.
PROOF
Tl_is
,,
test
sequence
,_
as two times.the
I;
but. more
TEST
test.iS
to verify
point,
!
the
to be used
1'as reqtkire,d"
integ:'ity
of the
especially
following
a critical
operating
pres.sure,
and
fitting
can
throughout
assembly
tl_
at ar_y t.)art;cular
test._/_roofpre_sure
be apphed
variou._
is definc, d
to any
......................
fitting/tubing
, i
T
=
assembly
priorto
The
i
. .
the
..
rating.
i
test
required
usually
i'
verification
, ._ :
',,.
l
[
PlLESSURI,;
normal
use
can be conducted
amount,
Being
conducted
and
closely
in,that
without
concern
wherc_uem
subjected
r.elated
to the
test
facility.
of permanent
the fitting
to the
highest
Burst
Test
damage.
can be pressurized
operating
Procedure
to
temperatu_t:
i
3, the
i
teSts..ar.e
.....
, .............
t !...........
..... ..................
1 .....
....
_: '"
P0rformance
'
Evaluation
PROOF
I :
A..
i
TEST
PA B.A METktkS
I.
Test
N_). E
PRESSURE.
{Keferenceg
:
']:est
ARP
899)
i
:'
i
Pressures
l.l
Class I assemblies:
Class
n assemblies:
1. z
2.
i
Between
Between
8,000 and 8,050 psig:
6, 000 and 6, 0:SQ psig
Teat_ Temperatures
Z. 1.
Class
Z.Z .
Class.ll assemblies:
3. •
Pressurization
4.
Pressure
5.
Test
I assemblies:
Hold
Medium:
450°F
Z75°F
_lO°F
-
+-1_(L_E
Rate:
20., 000. +-5, 0__00.psigLmin
Time:
Minimum
Mobil
Jet
of 5 minutes
Oil II or equivalent
..............................................................
B.
TEST
"t
APPARATUS
T
1.
Proof-pressure/burst
Z.
Proof,pressure
3.
Hydraulic
4..
Bourdon-type
i
5,
Manifold.pressure
]
6.
Chamber
temperature
control
7.
Manifold.
pressure_and
chamber
8.
Calibration
equipment
in st rum ent a tion)
i
-
.
I
C.
specimen
pressure
TEST
PROCEDU
L
InStall
pump
pressure
tube
i
chamber
mounting
fixture
(0-10,000
psigi_5
gage
(0-10,000
1
1
gpm)
psig)
control.system
(as
system
(automatic)__
temperaturq,
required
.strip
for preasure
chart
recorder,
system
,
and temperature
:
RES
fitting
specimens
in specime,
n mounting
fixture
_r
""
PJI.ooI,"
PI[]',SSUR.]'_
(Co,,t'd)
!
Z.
____h_ll
3.
i
specimen
Isolate
lation
moumin_tfixture
eachospecimen,
shields
that
prior
part
arc
c}mmbcr.
to-pressurization
of the chamber.
by
i:ustallh_g
4.
Fill specimens,
pump
reservoir and all interconnecting
lines vzith the specified pressurizing
fluid (item A. 5).
5.
BLeed
air fi'om entire pressurized
est point of the system
Start ternperat_n'c recording
7.
Condition
specimens
Start prqssure
9.
Pressurize
recording
specimems
[
chamber
ten_peraturc
pressure
for
of one-hour
test.
olzerating pressure
Adjust.
t_st)using
manifold
pressurization
pressure
to within specified
five
.at the elevated
of fittir_gundergoing
to twice-the
Class
ZO,
O_O of+-5,000fittingpsig/min.
undergoing
Hold
the high.
cquigment.
._
10 ....
by venting
fluid
equ_iprnent.
fol .a minimum
for the Class
8.
assembly
iv'o-
to atmosphere.
6.
temperature
_:
in test
nlinutes.
(for the
and/or
rate of
tolerances.
Monitor
pressure
gage
and
visually
obsurvc-s_ecimcns
during
this
pressure
holA to detect
any fitting failures. If a fitting begins to leak. in:me.!iately.
close the manifold
vah, e to the defective fitting and record pertinent
11.
12.
data
in test
Upon
completion
sure
to zero
Remove
log.
of the
and
specimens
five
chamber
minute
hold,
temperature
from
chamber
reduce
to room
and conduct
of fittings• For separable fittings, include
of the seals and sealing surfaces.
a ,
O.
TEST
Data
RECORDS:
--_
Sheet.
Record
all
pertinent
results
on
manifold
pres-
temperature.
visual inspection
a visual examination-
the
Pr0of-Burst
Test
i!
_
-
• °
,,
i
I."
L
I
!
SUPPLEMENT.N.O.
1
ii
to
PROOF
TESTING
PRESS.URIE.
OF
TEST
for the
BOSS
TYPE
FITTING
PIIOCEDURE
SEPAXABLIE
A SSEM]3LI]']S
r........
.............
1
"r"
• ] '"
,,_T
I' I{ I::,qSU R. ] ] ....
Pl{O()];'
\
[0
-
'l.'Y I.JE 8L]?A
";"
]]OSS
•
(l_.o.ferenc(::
A,
TI<ST
i}-
PARAM]'_
F
"
RA B].,.I.J.
'_ ....1]." i.1NG
' ] ' A SSI<M]_LI
'"
L,,S
_'
To. St J-_rOcecluro
fOr.Unions)
,v, _S
Same
_
B.
TEST APPARATUS
_
f:
i%
l
l¸---
Add
Items
9 and
i0 as follows:
{
""
9.
A...d,apter:
• -
10.
Extension
adapter
in the Controlled
!
C.
TEST
la.
Vendors_hm_.s
recess
to
for manifold
environmental
3/4"
to place
chan_ber
pipe
(see
the
boss
(seeFi_
Fig.
la).
and boss
.g_]_a),
adapter
PROCEDURE
Add
Item
l a to read
as
For
boss
assemblies,
follows:
install as follows:
i
.......Install
extension
- Install vendors
adapter
boss• adapter
Install boss in recess
with
vendors
instructions
i
.......Connect
the
in manifold
separable
.........................................
in end of extension.
(provided in the adapter)
and tools•
in accordance
fitting[.tubi.llg..tg_.tj!.e...b..9.s_-s..,..
4
D.
_'
TEST
RECORDS
Same.
J
i1
i_
3.
I_ LI](S']"
Bur,_;t
pressure,
pressure
fai.lure,
series,
altho_!ugh
to
to.continu_tlg
is used
::
Pressure
i
test
,_
to
four
tlle
both
_s
Test
Since
as
considerable
burst
tilnes
test
operatil_?
a specific
re_st
Procedure
burst
on
4) and
if axly
the
tour
tin_t:s
fi.tting_assembly
pressure_n.cr.ease
determine
_'
e,_ch
__t..b_e.destructive
pressurized
L i:
is defined
it(x.wever,
without
test
l'_ 1Ui'SSU }(l,?, ']'l:_S']'
is
desigilatc.d
\vitbstan_l
may
will
.wberein
be used
a_<l held
to failure
of tube
fitting
a destructive
_rom
test,
the
the
this
assembl.y
ten
seconds
fitting.
The
Proof
check
resulted
During
the
{combined
a verification
pressure
occur.
for
or
operating
this
deformation
l, res_,uare
deterioration
test
must
a new
as
the
and
following
._
is
prior
test
Burst.
a designated
!
test.
,
equipment
is
designed
i
i
i :
for
a maxi_Tmm
of 30,000
.....
psi
pressure
capability.
Adequate
protection
is
i
ii
4
.
provided
when
i
test
to prevent
the
facility
specimen
is
technician
fails,
illustrated
exposure,
and
also
to
ill a descriptive
to hot
contain
oil
spray
a possible
diagram,
athigh
fire.
Figure
pressures
The
2.
burst
•;
Performance
_
•i
Evaluation
BURST
(Reference:
Test
No.
3
.__
.PRESSURE_
ARP 899)
[
t'.
:!
A.
TEST
P.ARA MI_ TERS
1.
Test
i
PresSure
(
i "'
_i
I.I
1.2
-ClaSs I assemblies:
Class
II assemblies:
Between
t%etween
16,000 and 16,050 p sig
12;000
and 1Z,050 psig
2
2.
Test
Temperature
2.1
Z.Z
Class
Class
I assemblies:
II assemblies:
3;
Pressurization
Rate:
4.
Pressure
5.
Test
Z0,000
TEST
APPARATUS
1.
Burst-pressure
chamber
:
P-.
Burst-pressure
specimen
i
3.
Hydraulic
4.
Bourdon-type
5.
Manifold
6.
Chamber_temperature
7:.
ManifOld
system
8.
Calibration
equipment
ins trume nta tion)
1.
InstaP.
Hold Time:
Medium:
450°F
275°F
Mobile
+-10°F
__I0°F
+-5,000
psig/min
I0 seconds
Jet
Oil II or equivalent
m
B.
...........
....................
mounting
fixture
(0-30,000
psig;
........
F_
pressure
pump
5 _pm)
_
.
:
pressure
pressure
pressure
gage
contro_
(0-30,000
system
control
and
psig)
system
chamber
(automatic)
temperature,
strip
chart
recorder
Q.
""
l
11_?_
(as
required
for
pressur_e
c.
|
t
specimens
in the
Specimen
mountin_
fixture
and temperature
,..
BURST
_.
Specimen
2.
Install.tl_e
chamber.
3.
Isolate
each
tion shields
4.
Fill
with
5.
Bleed
point
air from entire
pressurized
of the syStEm to atmosphere.
6.
Start
temperature
7.
Condition
specimens,
the specified
for
Start pr.essure
(_B.urst pressure
9,
Pressurize
rain.
Hold
continue-t0
Seconds.
(Cont'dl
fixture
recording
for
the Class
recording
specimens
on the manifold
tu pres_surization
of the chamber
....
pump reservoir
pressurizing.fluid
specimens
8.
10.
mounting
spechnea.prior
that are par.t
temperature
-
PP, I_SSURE
of the
by installing-isola.-
and all interconnecting
{Item A. 5).......
as,_.r._bly
test
fluid
by venting
lines
the highest
equipment.
a minimum
of fitting
of ten (10} hours
undergoing
equipmentand
to be burst
at the ele;ated
test.
isolate
specimen
one at a time. )
1l
to be teated.
specimen
using
pressurization
rate of 20,000
+5,000
nMg/
for ten (10) seconds
at_two times
Operating
pressure,
than
three
(3} times
operating
pressure
and hold for ten {10}
Continue
to pressurize
specimen
to four
sure (for the Class
of fitting
undergoing
rate of 20,000
+-5,000 psig/min.
Adjust
chamber
temperature
to within
specified
(4) time-s the operating
pres
test) using
pressurization
manifold
pressure
and/or
tolerances.
11.
Hold four times
operating
pressure
for ten seconds.
Monitor
pressure gage and visually
observe
specimens
during
this pressure
hold
to detect
any fitting
failures.
If a fitting
be uins to leak,, imnaediat,:l-_
close
the manifold
valve to the defective
fitting .....and..recordpertinimt
data in test log ....
12.
Upon completion
of the ten _econd
hold,
continue
pressure
the.stone,
rate untilburst
occurs.
Record
bur_t pressure.
Steps 8, 9 and 10 on rcmainLnq
specimens
................................
13.
Remove
specimens
from chamber
fittings..
For separable
fittings,
the seals
_,_d _ealing_surfacea.
and conduct.visual
inspection
include
a visual
examination
P, ECORDS"
results
;_
._
I
!
..............
]
rise at
Repeat
of"
of
_,
D.
1
TEST
Data
Sheet.
Record
all pertinent
on the
Proof-Burst
Test
!.
)
_o.
I
4111
I_L
.....
I"l ;
| IIi',{'
IH|'
II
•
_'IL _
I II
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,
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m.:
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.
0
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,
_
_
.
•
,
l-:'[
":li,l
u'l),
u[_
;
......
•
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_:
.....
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.
{L
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I t,.'®,_.
s
:>_
t-L]': ,"'
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I_
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ul
°
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_.
,_
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L-}" :{-':_
"-'-"
u'}
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-..........
{--.-g
0
i
2
-.
.,,,_
_l.t
o- u'l
_t
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--
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_:
,
L.
f
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{t
11
_
_11
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_
[
[ I
i i
*"
....
SUPPLEMENT
"
_._
I
NO.
I
to
BURST
0,.
, ,.
PIAESSURE
for
TESTING
• "
TEST
the
PROCEDURE
.OF BOSS
TYPE_SEPARABLE
FITTING
A SSEMBLIES
] '
q_
i
,i
IbRL____._
_ ...........................
,{
, .....
l 1 .............
t I 1 q-2
i-
/
,...................
7=
I
!
11
1
_UI_
1
_"......
_''
_
fo t"
];O,qS
-.I
'.i.'Yi:)E
S]'21)AJiA]_
(aeft:rt..llcc:
:;
I.,h] 1.,']'FTJN(I.
'J.'¢.*;;t l-_.i'ocedure
for
ASS I,hM 13LI 1,2S
Unions)
q_
""
A..
TEST
PA RAM
I,, TlilP, S
ql
S alYt e
:
B.
TEST
APPA>
Samc,.
9.
l
•,
10.
ATUS
but
add
Adapter:
Items
Vendors
9 and
boss
10 as
re_:ess
follows:
to 3LZt.!.' pipe
Extension
.Adapter..for
manifold
in the controlled
envir0mncntal
to place
chan_ber
(see
F.ig.
la).
the boss
and boss
(see
Fig.
la).
adapter
1
-"
C..
...
TEST
la.
PI_OCEDU
RE
]
Add
Item
la to...read
For
boss
assemblies,
1
as followS:
install
as
follows:
f
_,
D.
TEST
-
Install
extension
--
Install
vendors
-
Install
boss
in..recess
with
\.end or s instructions
-
Connect
RECOP,
,or
Saint
!
1
I
the
DS
adapter
bor_s
sepnrable
in manifold.
adapter
in end
of exlension.
(p_:ovided
in the-adapter)
and tools.
fitl.ing/lubing
to the
in accmrdapce
boss.
{
'
58
,I.
(;OMI_)INF;I)
,.,
.
The.a._:tual
they
follow
proof
test
•
and
then
"
mended,
burst
any
without
"
any
oftlrne
occurs.
tests
or
for
l',ll It/-;'l ' 'l'l':iJ'l
proof
anrl
times
before
pause,.
These
damage
hurst
i)),essures
Ivi_ost all. fitting,
problems,..
to two
I0 second
failure
ANI)
sequence.
pr'essurized
period
prior
te-,_is
ilk_ical
sur.e .fora
'
.1 )l(O()l;"
going
the
operat_ing
pressure
and
Finally the specimen
test
aSsemblies
Therefore,
to three
specimens
must
wet(:
specimen
(ombln(:d
._;inc(,
will
the
is preconditionc¢
and. held
four
times
pass
for
operating
is pressurized
be
new
specimens
the
d ..............
recon_ores-
until a ..
without
.......
I
r........
.....
....
1.............
.... l-¸
i
J
l_,,rformal_c.-,r
I
1
A.
TEST
1.
!
f!
t ....
2.
._,
Test
Pressure
l. I
1.2
Class
Class
Test
Temperature
2.
"_
B.
i--
1
I asse_nblies:
Class
II assemblius:
3.
Pressurization
4.
Pressure
5.
Test
TEST
APPARATUS
Rate:
to 10,050
t?sig
to 1Z, 050 psig
il0°F
+5,000
psig/min
5 minutes
Jet
Mobile
chamber
Z.
Burst-pressure
specimen
..
3.
Hydraulic
""
4 ......
Bourdon-type
5.
Manifold
pressure
...
6.
Chamber.
temper,_ture
""
.-
7..
Manifold
system
pressure
i i
8.
Calibration
TEST
_PP
OC
R
1.
Install
C,
.t
,..:_.,v_ov,±,_,_10OF
g0,000
pressure
8,050
6,050
450°F
field.Time:
Medium:
in st rum
-
Class
Burst-pressure
_
No,.
I_URS'I'
IcR I':,%_UI_I':
AI{P 89{))
I asse_nblies:
From
i1 ,_ssclnblies;....i,?ron_
l
-._ ..
'l'e_
I-_A RA M]'21'1_ l_S
g.Z
i
I.$valua_tion
COM]_INEI) (]lpft:reltce:
]?I_OOF-
T
;
t
.Oil II or equivalent
holding
pump
pressure
(O-30, O00. psig)
gage
coulrol
(0-30_
000
psig)
system
control
and
fixture
system
chamber
(automatic)
temperature,
slrip
chart-recorder
e ,_nt:it ion)
equipment
(as
required
for
pressure
and
tcmperalur6
ZK___....._
D U R _q.
specim6ns
in burst-pressure
s ec:,m6n
i
mounting
fixturc
.
J
1
._
,£
GOM]_INEI).
!i
:
Z.
l.nsiall.slwcimen
challll)e
r.
3.
Isolate
lation
•_
i
,,
4 ........... Fill
with
PROOF-,
I_,IJl_,'-;'l' I_RES,qUP,
llIoUlllillg-fi:.'ttll'e
each
shields
Sl_ecim.n
lhal
arc
specimens,
the specified
prior
part
J;" (Cont'd)
t_n nlanilol,I
i_1 }n_rsI
to pre._suri.zatiOn
of the c}lal_lbel'.
pump
reservoir
pressurizip_g
and
fluid
pre::,,;_lr,..
by in.,_talling
lhe
all interconnecting
(Item
A.. 5)
,;,so-
fluid
lines
i
i}
5.
!
_:
Bleed
air
£,'om
point
of the
6.
Start
temperature
7.
Condition
spec._mens
the
of fitting
Class
8.
Start
9.
Pressurize
of fitting
s,ys.tem
10.
ttold
valve
11.
period.
Reactivate-pressure
ating
pressure
suri_zation
rato.
-+5,
000
Continue
and-hold
(.t)
I
times
tcmperature
for
!
pressure
rate
and/or
fitting,
Monitor
this
to
(for the Class
of 20,000
±5,000
chamber
temperalure
Class
valves
and
pressure
and
record
at
will
pertinent
bold,
reduce
450:F
for
he
tutored
Ii specimens,
p.ressurize
off
to
pressure
and
iml,t
at
to two
t,.n
i,_,-..
prc. ssurc
of 9&ours.
this
condi-
375_F.
specimen
times
to be
the
oper-
lesA3 usin_
pr,,shold
for ten minutes.
(3) times
pressu.rization
pressurize
fl,r
visually
fittin_
rnanifl.id
in test
during
isolate
specimen
psig/min.
Pressurize
to using:
thret_
pressurizing
specimen
for.ten
seconds.
Co,'_tinue.to
data
condition
equipment,
and
an'.,
the
manifold
a minimum
(tot.tile
class
of.£itting
undergoin_
of iO, 000
_5_000
psi_/min
and
oper;,tin,:
gag'c
pressure
ho[d to detect
leak,
im_nediately
close
recording
tested
13.
elcvated
1
pressure
equipment
For
..
t
at the
the operating
pressurization
five-minutes.
defective
""
_*
highest
equipment.
manifold
for
u_sing
the
test.
to twice
test)
using
recording
tioning
12.
hour
Upon completion
of the five minute
to zero,
and
.condition
specimens
Pressure
*
one
specimens
during
If a filling
begins
to the
venti_,g
lolerances.
pressure
observe
failure.s.
""
for
undergoing
Adjust
by
equipn_ent.
recording
specllied
assernbly
to atmosphere.
specimens
undergoing
within
pressurized
recording
pressure
psig/min.
•
entire
operating/'ate
spec;.mlen
_,.,,mds;.
ofpressure
20,000
t_ four
"
_
I
!:
61
'
!
'1
COM.] _,I:NLI)
r
l:'i_.OOF- BU I[S'].' laI(F'SSI_] ]{. 1,; (Cont'd)
I
'"
-,
14.
:/
ulll:i[
15,
e,-_
U(,l.d at four. (4) tim{,s operati,li'
prcs,_;ure
fi_r ten :;._,c,_,_,;.q a,_d_i£ n_,
fn$lux'e occults,
cotltinue
prcs._;llriza-titm-.at.r-.;lle
s_c:cified
i31 (12.)
_
bttl'sl
oCCuY8,
I:tOlate
failed
specimell
uging v.lw.'s
and pcr fomn
specimens
one at a time.
Inspect
speci,_ens,.in-place
test
on remai,ling
a£tc, r tcpnper-
[,
!
_
"
16.
•
i
I
D.
•
ature
ha.s been reduced
to ambient.
Remove
specimens
.from chamber_and
conduct, vi,;ual inst._vctior,
and
failure
al_alysis
of fittings.
For sel_a.rabl.e
fittings,
indude
a.visual
examination
of the seals
and scaling
sur£aces.
"I'EST_RECORDS:
Data Sheet.
Record
all pertinent
results
on the
Proof-Burst
Test
'_'
m
/i
+'
,_,.,c.','+-,
i.._"
i"I ,.",H"+....
,+.
.... _:'":'." ..
I '+",
' ' ;, ....+ ....' .....
'I"
:
'l'l,'q'F
SUBJE (;'r
' t";'IJ_'
]'1_()_:;+
2
;
+i
pP,'j,IE+C:i: .... :...................
(J +'++'+I + '
'
', ."._+
II
.,
DA, ,, ---+-.-- ......................
l'iPl._;_+',Jtt.:
B')'
AI't
+'-'
'J'YI'I':
(,¢:, I,-rul>l,,
,,,
T 1':,_-;
'.I' ']: l ::M ]) E l { A '].'U J1.I":
I .'..SJ.
+
++ '
""....
'.Fl':._;+'J
' (;R O U+]_'..
O1": 'I+UI;ING:
_1+]+.;::1)'Jf)_
'<_, ..._'..'l':
O_1)')
_t ]s 1).1.u,\ J.
-_+
J _'1_1tj,_.C,.,'Idlt,
i'_
Sl)ecil:_t+'n
Code Nu.
•
i:
l+til:',:]'
c._,_
........
_.....
_ I_0............_,_"
...........
_+_:!
LI '
+'"
,:- +.
+:
-
':('
'::t,, !!,' "':",,_, ' ", i"..
,.7 - ,'++'i(_':]'
]'+++'t)l+_+
Pr_,siiit.m ' ]):;t,]>,,.'F_-n
il ']'_':,L
I+,U]/S .+I"'J'I:._-_'Y
Dale.,End
2-. .....
No ........
' ....
+.." l+n_.<,
/.. l.,r.+u 6?++.}'Y,.:'.,JI,.I,Y.'.N+.p..+.'.:,U!.p'.'.. t'.:.:.:':-P,
""
tI
,:
L
tt]{;..". ,
i
--
i
I
I
° •
I
1,
i
I
t
:
+,
+
_
'
Specimen
Ct+>(lt++ NO+
:
Avg..
(Cl+.art
Failure
Load
4. (;;t'_c/?)
FAILU_E
D1ESCRIPLF1ON
t
[
•
•
i !
"'
SUPPLEMENT
""
"
NO.
1
to
COMBINED
PROOF
TESTINQ
.......
A.ND BURST
for the
OF
]3OSS
FITTING
TYPE
TEST
PROCEDURE
SEPAI_ABLE
ASSEMDLIES
i
4_
i
|
!
I
64
COMIU, NEI). PI(OO.V
/'
(RdforeIl_CC:
I,
i
-
i,
-
for
ABI.,E
bOS,"'S TYPE.SI_]PAP,
't
A.
AND
BUR, ST 'I'EST
1'"I "_
I J.IN(.," ASSi,MBL1ES'
'_'
To.st Procedure
fol' Unions)
TICS T PA ]{AM 1;;
TEIkS
S r,m e
..
B.
ILS]2 AI I AIxAIUS
:
Add
9.
;:
!. i
i0.
G.
TEST
:
Items
Adapter:
9 and
i0 as follows:
Vendors
boss
recess
to 3/4"
Extension adapter for manifold
in the controlled
environmcntal
pipe
(see
Fig.
la).
to place the boss and boss
cliamber
(see Fig. la).
adaptcr
PROCEDURE
Same
•_
la
,
Add
Items
For
boss
la to read
as follows:
assemblies,
- Install extension
Install vendors
install
adapter
boss
as follows:
in manifold.
adapter
in end of extension.
i.......
""
Install boss in recess (.provided in the adapter).in
with vendors instructions and tools.
'"
i
..
-
D.
TEST
Connect
the separable
fitting/tubing to the boss.
accordance
........
RECORDS
Same
I
]"
]
!
!
'
"
!
I
i
t
......
,
6_
1
,,h,_
5.
IMP'UI.SE
"
Initially
--
the-impulse
test
was.designed
presented
ill Mil-F-18Z80C.
tlowever,
analyzing
the
decided
the test
..
change
_'
justified
out"
results,
from
the
by the
the poor
The
with
it was
requirements
.
_,
TEST
sug. gest:cd
common
followi_g
that
test
desire
test
outlined
to conduct
test
improvement
severe
mcthocis
_equiren!e_lls
prelianinary
some
a more
the
to the
program
and
was. needed
in
fittings.
in the work
a test
work
This
statement
which
was
would
"weed
designs.
pressure/time
an impulse
second,
to provide
arouad
curve
pressure
as
surge
subjected
the test
energy.
It was
recommended
created
specimen
b) Mil-F-18280C,
1)y the
rise
to an initial
rate
pe_k
Figure
of 175,000.
impulse
3,
psi/
containing
p
-
negligible
and
"-
also
the
impulse
at all.
pressure
r!se
cyclic
rate
obvious
•,
pressme
""
175,000
T
_
cyclic"
time
impulse
the
by the
,,oein,
hardly
sensedthe
cu:zve
presented
more
rise
in the SAE
in Figure
been
theory
700789
the
minute)
4 .
strenuously
This
Paper
pressure
to reduce
,.ace has
psi/see.
rate
peak
(60 cy_zle per
as shown
be exercised
30,000
pressure-ri_e
_:as adjusted
slower
the pressure
to approximately.
that
rapid
a somewhat
will
since
ot this
equipment
a pressure/time
Specimen
w.",
because
specimen
the test
pattern
four_d to c0inc'de
in,'e_tigated
that
and provide
the test
psi/see
rate,
Therefore
to prod_ce
that
|
It is
with
reduced
wa_
this
from
later
Testing
Airplane
(1) and
Co.
Criteria".lay.
ttyd_aulic
tl.
Distribut{on
W.
Mutske,
Systems
W.
G,
Nolson
Besign,
and J.
Developments
fI. Van der
'i
t
"
(1)"Future
I
fast
felt
and.
\'c!lden
"
'_"
,,
-i
""
..
THE CURVESt{OWNABOVE,.,.
IS THE APPROXII,IAIE..........
_,_m'v,
","_m.,......
t;.CI_Y__,"v
,-DETERI;II_DID PE,.
OF PROPER SEVERITY FOR l<..'.Pt_.q_"
TE.,.I.,_e_'-,,_
OF FLA_]L_TSS
FITTINGS. ,,
r,
......
,.
._.,,,
143 _ 157 ,r_""cr""'.....,,-.,
,, C? """'.,_.'"'nv_;3,,,.,.-,
:)'.
n:U.Z£SU
.
,.- ,',._,.O.m _.,.,..,_, .......
I::.....l_] _.u-v
l-ES
_A_IZ
LEVELI:;3 0":.F"AT F&.,'_D
_'_-q'?_,
_" IS CONS--=:r;_
....
,,,_
THE.PR_kqPURE-T!q._
CUi{TE[_E_"'r"_n
ONE VERY D_I_.B.E _"'_'" TO BE .J._.I,_,_,D_, ._.{[[$
1",,,_,.,_
.....
'-"
-"-i *_ T}£'.T .?ZSULTS
OF TESTS PERFOP_,iED
ON DI_/_NT
TEST P_._CHiNES
WILL BE ,_40&,7.
NE_L:_LY
COMPARABLE.
<
.
I
FIGURE
3
DYNAMIC
PI{ESSURE
IMPULSES
IN MI]_- F= 18Z80C;
RECOMMENDEI)
__
D
'1
_................
67
q
=.
-"
Cyclic
Rate:
PresSurization
Ra_e:
60.cycle_
per
minute
lq2,000
psi
per
minute
l
FIGURE
4
PRESSURE
VS TIME
CURVE
12_SPULSE TEST
;
i
_
|
t
|
/
t
I
;
68
_
For
:
....] _-•_
__ 4
a possible
measureme_nt_uf_lhe
degree
of deterioration
in the
A
""
impulse
_.!-
tested
(Procedure
spgcimen_...it
9} before
was
and
after
decided
the
that
impulse
a Gaseous
cyclinR
Leakage
would
be
Test
a more
I-
!
sensitive
method
"'
This
test
with
.
to remove
the
than
the
ProOf
Pressure
Tests
called
for
in Mil
18280C.
!"
_
,
helium
is easily
pe.rformcd
in thetest
facility.without
having
Ii.
i_ .
Ii
i,
specimen
from
their
_nc'unting
fixture,
. .
.
II .
The
_"
test
of a compact
facility
arrangen'_ent
pump,
accumulators,
..
valve,
cyclic timer,
"_
pulse
•
as
schematically
described
of a high volume
hydraulic
(10,000
to hydraulic
in Figure
5
consisted
psi rated) pressure. •
intensifier, directional
eontr¢l ..................
|
-•
m
I
test
preted
was
by
initially
pressure
adjusted
monitoring
the
the
of the
signals
and
photographic
pressure
switch, and
thereafter
trace
transducer
associated
piping.
periodically
of an oscilloscope
positioned
The pressure
checked
during
which
in the
test
the
intermanifold.
_
7--2
I
'II
_.. "
}:>el+for|B_ll_.ce
j!]\,_.i]ualiCnl
"r
IMlffU
(Reference:
.,
....
A.
TEST
PARAMiETERS
1.
Pressure:
-}
,..
test
times
operating
pressure--of,
the'Class
with pc.riodic
pressure
impulses
nominal
operg'tin.g
pressure.
""
Class
I.ass_emblies:
For
75% of ttae total
-
higher
2.2
of as-;(,rnl-li-o-.s
to I,elv,'een
From
-65°F
+ 10°F Io +450
test time.,
chamber
environn:cnt
temperature,
1.43
Number
higher
")
,_
I;" _ ,.5- F.
to be
From
-65°F
_ 10°F
to +275°F
test time,
chamber
environment
temperature,
of Impulse
c,
450°F.
ClasS.II
assemblies:
t:or
75% of the total
at
3.
18280C)
Temperature
Z. 1
''
N{>.
LS 1,_.
MII,-F-
Non-final
undergoinu
and 1.57
•
Tet;!
_.+25°F.
to be
275°F.
Cycles:
250,000
1
+ .
--
1
_ _
.i
_
;.
B.
4.
Impulse
5..
Test
"rEST
Cyclic
Medium:
]
65 _+5 cpm
Mobile
Jot
Oil
'
II or
eguivalent
..........................................
APPARATUS
1.
Impulse
2.
St_ecimen
mounting
3.
IIydrauliC
pressure
Output:
• ..
Rate:
4,
Bourdon-type
5.
Manifold
6.
Oscilloscope
7.
Chambt_r
chamber
6,000
pair
fixture
aystem
temperature,
2,0_,q
psig;
minimum)
pressure
pressure
(Input:
gage
conlrol
(0_-10,000
,_ystem
control
system
psig)
11 gpm,
r
r_
i
I
'
1 I_ .....
........
!
i
W
/0
i
IMPIJ
I,SF, (Cont_d)
i
I
.'_
l_re.';,'_tll'e
9,
Galib.r_ation
equipmet_t
ture
insl run_ontation)
., _
•,
tt:l?ll_eratul'c;
strip
ch_Lrt
required
(as
TEST
ImKOGEDt.
I.
Install
speci1_en
in impul.se:..mounting
..
2.
Instal]
specimen
mounting
_°
3.
Pux'ge.
specimens
!
i
C,
a.nd.
g.._
r(-!cord(,r
for
l)re_sur¢,
and
tel'npora-
tIES
fixture
I'
i
fixture
in chamber
i_
ii
:_"
pressure
4.
..
""
system
Attach
helium
tested,
5 ........
-
6.
isolation
7 ......... Insert
;,
,,
....
if necessary
to the
leak
fitting
for
fitting
a minimum
for
tubes
the
of specimen
Reduce-helium
-"
fill
_.
lines
Record
of fitting
each
sniffer
probe
zero
pressure
specimens,
Bleed
with
ga._
pump
the
"7
t
10.
Ii
11.
Start
heating
temperatur_
system
12.
Condition
elevated
highest
from
point
to be
undergoing
specimen
tk_-ough
leak
at the
isolation
detector
specified
entire
of the
specimens
tomperature
to zero;
reservoir
and
all.
recording
iora
for
at
near
zero
...............
to 3,000
or
two minut'os.
isolation
tubes
interconnecting
fluid
pressurized-assembly
system
tube
reading
.remove
pressurizing
test
.__
8 ............ Pressurize
each
Specimen
in turn
with
helium
psig
depending
on class
of fitting
and hold for
Kecord
leak
detector
reading.
9.
and
,
of one-hour
class
around
dete.ztor
set,
inlet
of manifold
pressurize
temperature
Install
the
portions
nitrogen
specimens
elevated
"
applicable
source
Do not
Gondition
and
with
(Item
by
4, 00fl
and
fluid
A,.5)
ventin_
t.he
to atmosphere
equipment-and
minimum
the.
class
test
chamber
one=hourundergoing
at the
of oftitling
test
!
i
i
,L
t
i
',
71
•
!
i
I_MI2tII,SE
13,
(Goni'd).
Begin.impulse-c.ycling
sy_tdrn
wit-h
:
ey.cles
on
-9,000,
240,000
pressure
to, insure
-
-
14.
cycles):
lhereafter
parameters
Initiate
program
of te.rnperatu_:e
the following
schedule:
'
i'.i
Temperature
High
;,
Cycle
(high
(higl',to
..
High
Cycle
High
Cycle
(high
l,
Cycle
Cycle
• _
High
_"
;_I-Iigh'
:.
i
3
600
40.0_
low
to high)
4 - 15
15 , 18
18 - Z9
5-4 000
64 300
10-4 400
29
- 32
115
200
3Z
- 43
154
800
43
- 46
i65
600
46
- 57
205
.2-00
57
- 60
316,000
to
high)
to high)
to high)
60 - 69.44
temperature
Loss
is
7 under
either
test;
of pressure
,.
apparert
i
"_
reacti,cate
adjusted
l_
i
16,
17,
Drain
valve
each
reduce
all oil from.
on manifold,
sp_cimcn_f_-om
27-5°F
tempcr:_ture
250,
depending
is
t
!
i
i
00O
on the
-65°F
i
+10°F
Class
for
wgll automatically
1
',
cipher
stop
When
this ucculb,
r-ecord the number
total
ac-cunnul_-_ed
time
under
te_t
ctnd
for.failure.
machine,.
to maintain
Upola.completiun
machine
and
or
in ans: one specimen
t!leimpulse-machine..
of cycles
completed,
reason
.I50dF
low
"'
I
Cycles
14
*o low
of asseanbl
ClasS.
15.
A pR1 ox.m :. _.
Total
Numbc_r
1
to low
(high
cd
with
1 - 4
High
•
"in accordance
low
to high)
to low
(high
and
low
High
-.
cycles/
high
(hours)
0 -
to
of 60
for_prqper
cycles
Elevation*
!
tale
th0...oscillos.cope
initially,
99,090,
160,(!0_0
and
A c c u mulr'-t
Time
-
r
pul.se
mim_te,
Monitor
pressure
and at.regular,
intervals.(after
,isolate
the
(Note:
Temperature
a 3:1 ratio
of time.
of 250,000
impulse
t e3.mperature
on,!
,:aps
were
sDecimen
cycles
athigh:low
cycles,
Vested
specimens
by
and biowing,
nitrog6n
v.I,;-h
failed
shut
open_n_
through
and
must
b-e
temperatu_'.e)
off
the
appropriate
top end
r_nm,.'rd.
impulse
of
i
'i,
t
'
|
"
I
J
I
18.
_,
i
"_
i'
i
IMPt]
--.
_
1Keplace
accoazding
19-.
Reduce
!..
I
[ ,
.i
4,
"i
./o
!
c_ps
to_inst
and
C(_C_,ont'd)
conduct
ructions
to
For_separable
of the
seals
Second
3.th_'ou_h
chamher,temperature
remo_,efitting_.
examination
)
end
!,SF,
and
Ras0ous
leakage
test
9
r.oom,
temper_tua'e
fittings,.inelude
sealing
surfaces.
and
a visual
.
7,1
1
SOUTH\.",/rSI" RESIr.ARCI4 INSTITUTE
DAT['--_
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SOUTIqWESTRESEARCH IN,.:, I ITUTE
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DATASHEE'F
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SUBJECT
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"'"' I
DATE
BY
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OF ,-
SllEETS
{,3--;11
',":!
PROJECT
:,:
],MI'I]I,SI.:
CYCI,IC
.'*
l.:(_l
SHEETNO.. Z
ltATI_: I_ICTURI!:S
ltl'JCOltD
(check
when
taken)
13clT..in
9000
cycles
99,000
160,000
Z,t0, 0(}0
I}}_,O,TT:C']'ED TV.,.'i,IPI,:]{ATIII4 E CYCI,'F:,'*;
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ADJUSTED
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TEM!_EI_ATUI1E
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CYC I_E,S
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° .
SUPPLEMENT
NO.
1
to
IMPULSE
_
TEST
PROC]E_DURE
for the
TESTING..OF
BOSS
TYPE
FITTING
ASSEMI3
SEPARABLE
LIES
I
7'/
-
. ]',, .I
i
]](),_;S
'"!
•
'.['Yiq'"
IM I _I ]I .,ql,: T ',_' '
,_],:.]?AI_AJ_J,],]. FI!J'TINC.
(]i,,h,r,,n('.,.,:
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.%,,_t ])r(,,'_,dl_r_,
A,q_I.:MIH.,H':S
-
f(_r tIJli(.J,_;)
b
A.
TEST
I_A]_AMI':T ERS
k
S a l]_e
-,
B.
TEST
AI_]*AI{ATUS
but
Same
"
10.
Adapter:
II.
Extension
in the
'
C.
.TEST
add
Items
Vendors
adapter
controlled
[0 a_d
11 as
follows:
1)o,_s.re,cc'ss
tu 3/4'
for
to place
maniftJld
environmental
pipe
(see
Fig.
the
b(:ss
and
chamber
(see
Fig.
la).
boss,.adaptcr
la) ............................................
PROCEDURES
..................................
Add...Itcn_[a to read
[a
"
7"-
For
boss
D.
TEST
Install
extension
-
Install
vendors
-
Install
J
boss
vendors
install
adapter
boss
in
reccss
instructions
as
!
follows:
in mauifold.
adapter
in end
(provided
and
of extension.
in the
adapter)
jn....a..c.cprdance
tools.
RECORDS
Sanlc.
;
asscn_,blics,
-
with
as follows:
..
;
•
i
6._
(
ASSEMI_LY
TORQU_
AND
MISALIGN1MENT
Since
two
were
somewhat
tl_ese
tests
TEST
similar
wltl_
respect
to _lm
9)
mounting
.,
fixture
onatest
procedure.
fittings
due
but
The
This
torque
having
Procedure)
and
key
conducted
tests.
the
been
test
the
after
that
end
and
of residual
back"
lengths
could result in data that might
fitting.
the
f_tt_ng.has
assembled
been
amount
between
joined
together,
and
grips
the,
also
gages
the
test
speci-
this
test.
Length
to be
tested
on the
of the
other,
left in the finished tubing
are dependent
serieS.
design
created
from
fitting
This
for
is to determine
implies
and the strain4_age
on both the length
t.hatfor the sake of
locations
should be
It can also be assumed
lengths of the same
predict
the
into
type
is pri_]arily
securely
torque
forces
on all tests in a particular
additional testing on varying
the
separable
positionedstrain
data
stiffness of the tube.
specimen
being
worthwhile
tl_e
combined
forces
Properly
fixture
one
the
frictional
while
were
aSSembling
Test
assembled..
on
on
data
mechanic
parts
a mounting
they
only
The
tubing
from
since the "spring
correlation,the
the same
on
the amount
and the torsional
specimen,
AssemblvTorque
mating
grip
test
to the
to deriving
the
also determines
assembly,
of the
useful
of the
between
are
results
after
.the
t0sts
imposed
retained
are
ehch
of the
torque
residual
tubing
_,
also
surfaces
men,
i
are
contact
(see
i
nature
purpose
of residual
for
The
tO the
purposes,
' '
requir_ad
that
Size and type of tubing
the residual
torque
values
in random
}
untested
..... l:
p.rogram,
lengths
only
of tubing aSSemblies.
one
particular
length.of
Due
to the _c_nomics_of
spe'cimens
wi!lbe
tested
this test
in this
!
!
i
'
i
series.
:!
.....
!
'i
[
_
7 ')
1
'l'tie
"
_,
angular
purpose
offset
of the
could
assembly
and
pivot
axis
o£ tl_e
since
tlie
more
accurate
be
l_isa].ignmenL
irnpo,_ed
satisfactory
shorter
the
the
on the
seM.
fitting
joint
is
tubing
I.:e._t is
separable
Length
tubing
importance
the
fitting
fittings,
o£thc
of vital
the. less
to cletcrn_in,,
how
and
._till
between
de£1ectiou
angle
at the
interface.
lengths
were
determined
for
and
were
found
proportional
test
was
an
grip__al_L
reliabl(_
and
Through
an-
_,ffcct
the
in obtaining
beuding
great
data,
therefore,
preliminary
the
test_
i
:!
ing
the
of the
necessary
test
procedure)
A failure
,
(1)
(Z)
in this
Seal
could
not be
Threads
wouldno
to be
determined
by
each
three
established
at maximum
longer engage because
size
(shown
with
different
in Fig.
each
tubing
6
O. D.
conditio,as:
torque.
of excessive
angle
of
di splac ement.
:
(3)
i
used
i
I
I
Threads
were
being
The test assembly
is shown
to record the test results.
stripped during
in Figure
make_up.
7 followed
-
by the data sheet form
_
Performance
Evaluation
(Separable
_,,
A.
"
.
.
B.
C.
TEST
TOrsional
fitting
Z.
Relative
3.
Fitting
leakage
at
(all other
fittings)
TEST
APPARATUS
i.
Specimen
Z,
Strain gage8-
3.
Strain indicator
4.
Torque
5,
Pressurizing
I.
*
:
6
Designs
Only I
PARAMETERS
1,
TEST
No.
M SALI NMEN
TEST
To Qu
:!
Te_t
strain
in tubing
allowable
induced
bK.assembled
displacement
300
210
rnisalignment
of specimen
psi
_
ends
fittings)
or
torque
45 ° rectangular
and recording
wrench
(MS
and assembly
3 element
separable
400
,+10
psi
test fixture
rosette
instruments
............
medium
(300
and
400
+10
psi
nitrogen)
PROCEDURE
I Mount two, 3 element 45 ° rectangular
strain gage rosettes,
_ Micro.-Measurement
Type EA-06-062RB-IZ0
or equivalent,
on specimen
in manner
as shown in Figure 6. Care mustbe
i
""
taken to insure
that the two rosettes are diametrically
opposed
and that the center gage grid axis parallels the specimen
axis,
_.
thereby
correctly
Loosely
install the assembled
e,
positioning
the
45 ° elements.
/
Z.
'
specimen
inthe
test fixture and
r"_
make necessary
connections to the strain indicator and recording
equipment.
Only the four 45? elements
will be connected in
":"
..
the form
torsional
of a full
strains
bridge
on the
as. shown
tube.
in Figure
6,
_i
!
to measure
____ _:,._i_
1
.
, ........
__
]
4"
ASSEMBLY
!
TORQUE
AND
MISALIGNMENT
(Cont'd)
],
3.
BalanCe the bridge
output to a zer.o reading
on the strain
indicator.
Fasten
the appr.opriate
part. of the test unionfirst in the vise clamp which is subsequently
fixed rigidly
to
the teat fixture,
and then tighten the arc g.uide.- clamp.block
on the tube in such a manner
that will maintain
Or return the
torque strains
indicator.
.
:
4.
to a balanced
(zero)
condition
81 ]
on the strain
Loosen the union nut (E), noting and recording the breakaway
torque required to disassemble.the union.
Reassemble
the fitting,tightening the nut (E) to the maximum
torque with a torque wrench, simultaneously recording the
applied running and residual strains during the tightening process.
6.
',
Repeat Steps 4 and 5 two more times for a totalof three corn-.
plete assemblies and disassemblies of the union during which
strain measurements
were taken.
7.
Following the completion of the assembly torque test, prepare
the specimen for the misalignment test by repositioning the union
on the fixture so tha':the mating surface pivot center (see Fig. 6.).............
coincides with the angular scale zero point. Clamp the hex
......................... portion of the union or male connector portion of the fitting
assembly in the vise ci_mp.
The short length tubing portion
of the test specimen is then fastened in the fixed clamp.
The
opposite end of the specimen is fittedinto the arc guide/clamp
block which has been positioned in the appropriate guide slot
designated for the particular sized tubing being tested. The
clamp is tightened to a point which will allow transverse movement of the tube within the clamp, but restrict any.lateral or
up/down motion.
•'
..
"_
._'2_i,._
L
8.
Attach pressure hose vo the male connector on one end of the
test spechnen and pressurize with nitrogen to the required test
pressure and check for leaks around the union connections.
Reduce pressure to zero.
9.
Loosen nut (E) completely and angularly displace moveable _
end 2 ° with the aid of the arc guide/clampblock
assembly.
Re-engage fittingnut ifpossible and torque to _manufacturers
recommended
minimum
torque. Pressuri_.e to required test
pressure
(300 psi-MS
fittings
and 400 psi all other flttinga)
with nitrogen.
Bubble
check for leaks.
If leak occurs,
increase
torque
to maximum
allowable
torque,
and if leak persist._,
. ........
•. .-:-.....
,....
,,,,,,
....
,_
8Z
1
ASSEMBLY
...
.....
•,
TORQUE
MISALIGNMENT
(teat'd)
proceed.to next step (I0), If no leakoccurs.,_proceed
to.
Step II. (Note: Before proceeding
to either step IGor II,
bubble
check
fluid
must
be removed
from
fitting
to avoid
_
(
!
lubricating
,..
the threads. )
10.____Ifa sea! cannot he-made
E
_:
AND
withthe
separable-union,
reduce
the angular, displacement
to a l°-increment
and repeat
Step 6.
Tf a seal cannot be made
with the separable
union
at I* misalignment,
return the tube to zero.misalignment
,,
ii
and repeat St__p 6. Record
alignment and leakage.
tor_ressure,
degrees
mis-
i"
i!
II.
_:
_!i
i
IZ.
displacement
in I *
increments
repeat
Step the
6 until.a
seal
If the fitting does
not
leak at Z*,and
then
increase
angular
or connection cannot be made.
degrees misalignment.
Record
Turn
specimen
off air supply
Inspect
D.
.........
i
TEST
and remove
visually and record
torque,
pressure
from
fixture.
and
results.
RECORDS
Record
all pertinent
stresses
results on the test log, and
calculate tqrsional
using the formula:
_E
@T=
i+_
where
GT
= torsional
stress
( = torsional strain (brid e_4 output )
E = modulus
of elasticity
--.
"
U = Poisson's
Residual
T R will
Torque
_
Ratio
cT
be
calculated
by using:
J
TR "'
..............................................
r
._
where
"
t
J = Polar moment
of inertia,
T R = Residual Torque,
in,lbs
r
!
distance
from
neutral
axis
in. 4
to outer
fiber,
in.
i_
,!
t
i
1
l
..........
1_
84.
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_ |
SOUTItWEST RESEARCH INSTITUTE
.,, a
DATASHEET
I
SHEET NO.
OF___,4EfilS
PROJECT 0:'f-31L3-OOZ
Misallgm_ent
.
Test
Soque1_coVII
SUBJECT
/, ..:7_
I
BY
DATE • . ,.
-
,1
'1'
Spc;cinwn
Cod(.,.
No,
.-
Test
P.r0ssure
,,
Test
Temperature-(°F):
: _.
(psig):
_
Maxin_um
Tor(£uc_:
Minimum
Torque:.-
Strain
Gage-Locations:
(Distance
ASSEMBLY
TORQUE
TEST
from
Edge
of Fitting
to Gage)
RESULTS
y,
i::
i!
.',
_!
' "
-.
@. Start:
,
Tig.htened:
.
.,.
•
'
:
,_
Bridge
CYCLE
1
Breakawa
Output
Torque
, CYCLE
3
BridgeBreakawa
. CYCLE
2
Bridg0Breakaway
y
Output
Torque
Output
K....
Torque
Total
Reading:@
Average
Bridge
Actual
®
@
Output
Torque
Strain
Reading(
g in/in
I
(......_@4)
+
3
3
+
5
=
@
)
=
@
@
@
!
True
•
-,
-
Tors.ional Stress.(¢
(E Z1-6-9
= 30 x 106
: _=_E
ETitanium.=
_)
=
@
17 x 106 ) ....
REMARKS:
/
,,
Attempts
:
Zero
MISALIGNIvIENT
l st
_
TEST
3 rd ,.
RESULTS
4tt_
,5th
6th
"-
,,,
ti
t
""
Angular
1
merit
(Degrees)
Se al
Established
(Yes
m,
Displace-
- No)
--
_
.1
:
,
I
,
!
.,
86
_m
i!.
SUPPLEMENT
NO.
1
to
ASSEMBLY
li,
• TORQUE
TESTING
AND
OF
MISALIGNMENT
fo r the
BOSS
TYPE
TEST
PROCEDURES
SEPARABLE
L
FITTING
A SSEMBLIES
i
iL
i:
i
i
!'
wL
t
I
i
;
,
:
1
I
I
ASSEMBLY
TORQUE
AND
MISALIGNM_]N.T
fo_
TYPe.SEPARABLE
BOSS
(Reference:
•
A.
TEST
2'ITTING
Test
ASSEMBLIES
Procedure
for Uriions)
PARAMETERS
Same
,
B.
TEST
•
APPARATUS
Same
,
C.
plus Item _ 6 and 7 as follows:
6.
Adapter:
7.
Extension adapter for manifold
in the controlled environmental
TEST
PROCEDURE
1.
Mount.two,
:
Vendors
boss
3 element
recess
to 3/4" pipe (see Fig.
to place
chamber
45 ° rectangular
Measurement
Type EA-06-062RB-I20
in manner
as shown in Figure 6a.
that the two
rosettes
2.
Loosely
install
necessary
ment.
a fu_l
on
:o
3.
Only
tube
Balance
Fasten
the
as
shown
in Figure
rosettes,
opposed
the
test
correctly
fixture
6a,
to measure
vise
,.
balanced
make
equipform. of
torsional
stratus
.....................
clamp
ture,
such.a
posi-.
and
indicator
and recording
will be connected
in the
1
I
the bridge
output
toa.
zero
reading
on the-strain
the appropriate
part
of the test
fitting
(th,-., adapter)
•.
Micro-
and that the center
axis, thereby
specimenin
to the strain
45 ° elements
gage
or equivalent, on specimen
Care must be taken to insure
the specimen
assembled
connections
the four
bridge
the
the
the boss and boss-adapter
(see Fig,_ 6a).
strain
are diametrically
gage grid axis parallels
tioning the 45 ° elements.
6a).
and then
manner
which
is
tighten
that-will
the
(zero)condition
subsequently
fixed
arc
guide
- clamp
maintain,
or return
rigidly
to the
block
on
the torque
indicator.
first
in
test
the tube
strains
on the strain indicato1' (,see Figs.
fixin
to a
6a).
1
]"
4.
"*
l
_=i
que
5.
I
Loosen
required
nut (E), noting and.recording
to disas-senable
the
fitting
(see,
Figs.
the breakaway
tor-
6a).
.]
_
Reassemble
the fitting,
tightening
the nut-(E)
to the maximum
torque witha
torque
wrench,
simultaneously
r_cording
th¢_, applied
running
and r_.sidual
strains
during
the tightening
process
(see
Figs.
.......
the union
6a).
"
,.
'....
,, '
., .........
--_
'
I
82
' |
,
TORQUE.
ASSEMBLY
6.
-'"
7.
were
Following
the
zero
point.
8.
the
hex
torque_test,
test by repositioning
so that the fitti_g.to
6a) coincides
with
portion
of the
the
the fitting/
boss
mating
the angular
scale
adapter
in the
specimen
opposite
end of the
block
which
has been
prepare
or
male
connec-
vise
clamp.
The
is then
fastened
specimen
positioned
is fitted
in the
extenin the
into the
appropri-
1
]
t
!
lateral
or
I
Attach
pressure
pressure
up/down
Loosen
to
nut
motion.
hose
to the
pressurize
for leaks
zero
(E)
(see
male
connector
minimum
torque.
MS fittings
check
for
and
leaks.
Fig.
allowable
If no leak
torque,
occurs,
to either
Step
fitting
to avoid
and
angularly
If a seal
cannot
reduce
the-angular
to required
psi all other
If leak
occurs,
test
fittings)
increase
bubble
the
be made
with
displacement
repeat
Step
and leakage.
6.
of the
test
test
presReduce
check
threads.
the
made
Record
movable
pressure
fluid
)
torque
the
the
2=
(300
psi-.
to next
step
(10).
Before
proceeding
must
be
separable
portion
to a 1" increment
with
return
end
.Re-engage
recommended
with nitrogen..
Bubble
torque
to maximum
and if leak
persists,_proceed
proceed
.to Step 11.
(Note:
Step
6.
If a seal
cannot
be
tim fitting
at 1 ° misalignment,
meat
and
alignment
displace
block
assembly.
to manufacturers
Pressurize
l0 or ll,
lubricating
end
6_ ..........
completely
400
on one
with nitrogen
to the required
around
the union
connections.
with
the aid of the arc. guide/clamp
fitting
nut if possible
and torqt_e
10.
completc
strain
ate guide
slot. designated
for the particular
sized
tubing
being
tested.
The clamp
is tightened
to a point
which
will allow
transverse
-movement
of the tube
within
the clamp,
but restrict
any
specimen.and
sure
and check
9.
of the. assembl.y
of the fitting
assmnbly
portion
of the test
.The
three
which
t
misalignment
on the fixture
center
(see
Fig.
fixed
clamp.
arc
gulde/Clamp
for atotalof
fitthag
during
i
the
Clamp
tor portion
sion/adapter
times
of the
(Cont'd),
taken,
completion
specimen
fez:
tubing
assembly
surface
pivot
_
MISALIGNMENT
Repeat
Steps
4 and 5 two more
assemblie.a
and disassemblies
measurements
°'
AND
separable
tube to
pressure,
removed
from
of the fitting,
and repeat
zero
portion
of
rnisaligr,-
degrees
rots-
i
.,
""
t
ot
,
11 ..............
If. the fitting
does
not leak
placement
in 1 ° increments
nection
cannot
be made.
misalignrnent.
at
Z*, then
incr_emse
the
and repeat
Step 6 until
Record
torque,
pressure
angular
disa seal
or conand degr0es
:_
• 1
'
i_
.,
--
,
iq,
i
.2
,
°
D.
_
,&
l
I
!
'140RQUI_2 AND MISALIGNMI;_NT
12.
Turn off air .supply
visu_.lly, and..xecQrd
TEST
RECORDS
San_e.
t.
I
ASSI_MBLY
and .remove
re suits.
specimen
.from
{Cont'd)
fixture,
inspect
!
91...........
7.__AXIAL
PULL
AND
purp_se
The
t.o fail. the tul)ing
where
a gas
the test
The
rc_raint
to effect
a seal
te_t
by. a bubble
test
is used
with
a gap
assembly,
The
,,,
cannot
be effected
or 85% of the yield
to insure
is the
that
same
The
ing
Z00,000
in Figure
lbs
8.
and titanium.
,j.
specimens
.are
Special
close
to determine
influence
were
fitting
Of t_l!.e._
tubing
Deflection
the
using
gages
designed
rod
w.a!ls
were
the distance
test
data..
other
inserts
of the
the
Test
were
positioned
gap,
a seal
has
......
._
been
must
of the test
test
be taken
machine
data.
Machine
capable
positioned
of produc-
as illustrated
the tubing
uniformly
as well
in the tubing
requ_.red
at ap.propri.ate
and also
halves
that
Care
required.equip...ment
to grip
¢_f
separa-
specimen
grips
at the higherloads
in the
of the
to the point
correlative
in a Baldwin
loading
two fitting
together.
between
for
tllc
load
the two halves
to allow
load,
grips
strength
the.p_int
air ........
the abil.ity
zero
].o_d r¢,-
tensile
the actual,
shop
between
from
specimen
conducted
of tensile
and
prevent-collapse
might
all
tests
as positively,
specimen
by torqueing
of the
during
witli
the
is defii_ed.a,_
to determine
gap is increased
the length
for
check
existing
before
or...exceeded
Failure
pressurized
_:
attained
i,_ to determine
assembly.
wl_icll l_as been
tube
ble fitting
pull
or fitting
is detected
specimen
I{ES'fltAINT TEST.
of tl_e axial
qqired
leak
TUBE
any
for
points
slippage
to
21-6-9
on the
that
...........
I
qZ
P
i
Derformance
AXIAJ,
1
(Tulm
A.
B.
i
Evaluation
I_UI,L
AND
ll(':straint
for
'i:e.st
TUBE
No.
7
RF, STRAIN']'
Separable
l)esigns
TEST
PARAME
I.
Mechani.cal.
ul_iaxtal
2.
PreSsure:
I00
3.
Pl:essuriz_ing fluid (shop air regulated
4.
llelative longitudinal controlled
5.
Tubing/fitting
TEST
ADPAIZATUS
1.
Specimen
axial
2 ....
Universal
test
3.
Strain
4.
Hydraulic
hand
pump
5.
Pressure
gage
(0-100
6.
Torquewrenches
TEST
PROCEDURE
1.
Calculate
maximun_
Stress
in tubing,
2.
Install
Only)
.']'ERS
tensile
load
4_:10psig
to I00 +-10 psig}
displacement
to create fitting gap
stress limit
pull
holding
machine
fixture
with
strain
pacer
(Baldwin
or
equivalent)
pacer
psig)
t
C.
-
test
(Separable
,
""
,_
3.
load
specimen
assembled
witll
he 13 inches.
Loosen
union
across
the
and
union
Fittings}
required
in axial-pull
nominal
with
joint
torquc_.
the
open
aid
to achieve
test
fixture
Distance
of a deflection
:gap in joinl_.015",
85%
of tensile
with
between
union lightly
grips
indicator
one
yield
should
mounted
side
only.
°.
,
I
)_
'1
AXIA.L
4.
PULL
AND
TUBE
R.ES'I_I_.AINT
(Cont'd)
To,.qu<,
rittin to measurednominaltorquo. (Donoro c,ed
the load
in tensile
_
at
,,
the
euualling
85% of yield.)
Record
tension
load
test. machine-and
readings
of dial
indicators
each
end
of the
test
specimen
to determine
reading
positioned
slippage
within
grips.
i
I
i
""
5.
Pressurize
completed
fitting
to
the seal..
100
psi
and
leak
check
!
_'
,,
,.
6.
If f_tting
satisfactorily
completed
and repeat
steps
3, _4 and 5.
_
""
7.
Continue
increasing
cannot
be effected.
:
''
8.
If a seal
cannot
be effected.in
and repeat steps.3, 4and
5.
Step
5, then
reduce
gap to:.010"
If a seal is still impossible,
.reduce
the gap to . 005".
3, 4 and 5.
record
the
seal,
to determine,
"
increase
if fitting
gap
005'
f'
i!:
gap until
tube
Record
results.
Each
time
stress
reaches
85%
yield
or
seal
test results noted in steps
.......
4_
_
9.
Assemble
_"
10.
Pressurize
!
11.
Check
:.
12.
Continue
""
union
(b)
Specimen
13.
Turn
off air
14.
Remove
15.
Record
or,
'
..
to
areas
for
leakage.
load
until
to increase
PreSsure
torque
specimen
critical
(a.)
..
to maximum
reduction
100 psi+
10 psig
FOR
PERMANENT
,shop
a.ir.
or bubble
check
indicates
fitting
leakage
,
fracture
supply
specimen
all
occurs;
and
from
relieve
test
pertinent
record
results
specimen
load.
fixture
test
on
and
visually
__.
_nspect
.
log.
FITTINGS
16.__._Compute
t_nsile load required
to achieve
85%
of tensile yield
in tubing.
,
A
I,
using
either:
results
I
value.
17.
install assembly
18.
Repeat
steps
in.axial pull test fixture in tensile test machine.
10 thr.ough.15
above.
I
+
[ I_
+4
il,', !
HP
i il=
61
ink.
i)l)
)_
tgt
"
....
;' ii
+
_.
/
.:
/
llil
It) ":.,
\
....... _
".....
\
Z +
;oJ
\\
•
I_t "
-
i. p
'
t
Lrt
i. o
t')
\ \
..
4[1-+
!
_;!_.
•..
+"'X
{_.
i.
t
""
r-
"
F
I-
..,_J
L+I
.i+ ?
t. K:tl
:.,. +.
I+
--]
..
-
........
"
v
14
........
I.
a
_+
I
1,
..
,,V ,,
If"
[_................
_-i
[\
-L-_-T.I_,_]] ]_]- +-.]-._-_
I--?
!
.,
/
_
)
,ill
i,_
K
×
r.q
_0_-'.-1--+ " ._---:----:_ t;.;'iJ_-_-_-_:-+-.--].i k.,t<'-4/ :t+
+.
/
i_ll.;o
it
l.+-
_
_"+
_ ...... i,
i
_
lt.+G_!
.i
l
i
-"
--.i_. tl
ti
_<.!
t_
.J
..
+
"
l I_"l
:I
+"#
'
|
I
:
lil
"?i
...........
,'
][,
I
AXIAl.
SPI_CIMEN
_; "_
:
TEST
SUBJECT
TESq
TEMP.
TEST
AIR
DATA
SHEET:
SE(_UENCE
NO.
PULL
& TUBE
CODE NO.
PROJECT
_°3"311_'°_:,..DATE
IX
RESTRAINT
BY
NOMINAL
(F. _)
PRESS.
MAX.
(Psi)
',,''
:fORQUE_
TORQUE:
85"/0TENSILE
YIELI/):
Ibs.
!
I.
_
START
i
i. ::
)
i ";
:ii
LOADED
JOINT
LOADED
TUBE..
(DIAL"A")
GAP
(DIAL SLIPPAGE
"B") (DIAL
ACTUAL.
"C") _[ "A"
TORQUE
- (B _+ C) ](APPLIED)
Ft'i_/ibs
GAP
-TENSILE
AIR
(ibs)
LOAD
(Yes
or No)
LEAK
a _
h
'
i
q •
• i
'
RE MA
RKS:
I'
_
_-
AXIAL
:.
PULL
_
TEST
Max.
Torque
Applied:
Max.
T,'nsile
Load
Grips
at Failure:
Union
......
_.
_i
....
)"
[!
E
1
I.
jt
!
!
--
DIAL
(;AGE
DIAC],
_
"°'°
I!
.
mll
__
SUPPLEMENT
NO,
1
to
AXIAL
"
!
,..
t:
PULL
AND
TESTING
TUBE.
OF-BOSS
RESTRAINT.
for the
TYPE
3_EST
SEPARABLE
"
FITTING
A SSEMB
LIES
PROCEDURE
,!
,f
I
97
__
AXIAL
--
BOSS
"_
PULL
TYPE
AND
TUBE
for
SEPARABLE
(Reference:
RESTRAINT
:"
T]qST
FITTiNGASSEMBLIES
Test
Procedure
for Unions)
(.
io
..
Z
{.
A.
TEST
....
il
k
Same.
B.
'
PARAMETERS
TEST
,.
A PpAP, A TU S
Same
_"
}'
pl.us Items
6 and 7 as follo_:_
6.
Adapter:
7.
Extension adapter_ for manifold
in the contr.olled environmental
:
Vendor:s
boss
recess
to 3/4,' pipe (see Fig.
8a.).
to place the.bosS and boss adapter
chamber
(see_ Fig. 8a).
t ,
C.
;.
TEST
i.
PROCEDURE
Calculate
maximum
load required
to achieve
85%
of'tensile yield
stress in tubing.
!
!
'
,
2.
: "i
.i
between
3.
_
..
i
•
Install test specimen_in
axial-pull test fixture with boss and connecting tubing tightly assembled
with nominal torque.
Distance
L.oosen
grips
8a) "
union joint open
gap in joint .015",
specimen
to determine
slippage
6.
•.
,
fitting to I00 psi and. leak check
the.
the
grips.
Continue
increasing
be effected.
,
}
I
to determine
if fitting
seal.
'
,i !
If fitting satiSfactorilycompleted
repeat Steps 3, 4 and 5. ..
cannot
8.
t•
Pressurize
completed
7.
If
mounted
-
5.
_
""
i
one ._ide only.
within
'
•"
/'.
(see Fig.
Torque fitting to measured
nominal
torque. .(Do not exceed the
load_equaling 8.5% of yield. ). Record
tension load reading ill-tensile
test machine
and readings of dial indicators .positioned at each end
of the test
I
13 inches
fitting nut and with the aid of,a deflection.indicator
across.the
4.
should be
gap
until
Record
tube
the seal, increase
gap .005"
and
't
'_
stress
reaches
85%
yield
or
seat
results.
If a seal Cannotbe
effec_ed in Step. 5, then reduce gap to .010" and.
repeat Steps 3, 4 and 5._If a seal is still impossible,
r-educe the
andgap
to5.
" 005".
.
Each. time
record
test results noted
in Steps 3, 4
]
[
1
I
AXIAL
.
.,
.---
1
/
t
]>ULL AND
9.
Assemble
boss.
10.
PresSuriZe
11..
Check
12.
Continue
specimen
.ILSR (Cont'd)
RESTRAIN'I_. "_-'' '
TUBE
to fitting
, l
using.._n._aximmll
to-t00
t ot'que
p,_i -+10 psig
using
value.
shop
air.
ml,t
"
_,
(a)
_;
Critical
areaS
to. increaSe
for
leakage.
load
until
either:
.
Pressure:reduction. or bubble check_indicates fittingleakage
or,
(.b). Specimen
""
record_results.
fracture occurs;
z.,
_i
13.
Turn off air supply and relieve speCimen
i"
14.
l%ernove specimen
15.
Remo.ve.boss
• v.
-_._.v-_
i
I
1
I
_L_
fr.om
ve_eJtt
load.
from test fixtur_e_a_dvisually inspect.
adapter
resuL_
and. visually
on
L,_sL
tog.
inspect.
'_
i
I
I
1.00......................
#
8,
STRUCTURAL
,
LOAD
RELAXATION
TEST
The purpose_of this test is tu measure
fitting
assembly
subjecte__d
IS_parable Fitting O_ly.._
....
the stnnlcturalload relaxation
..=
o£.,a_separable,
to a tensile__eaa
load
equal
to-the
""
stress level which would be applied to thetubing by proof press_ure (Z-times
.r:'
I_
operating pressure) and to a temperature
I'
_
allowable
for the_particular
74
type
condition equal to the maximum_
of tubing.
The--relaxation
.
of strain
""
terms
.'_
iO0 hours, and subsequently converted into terms
i_
""
One uniaxial
high temperature
to measure
the tensile
strain
applied,,
reduction
monitored
separate, self-contained load frame
_
and simultaneously
is measured
in
,
applying
periodically
during.the
test
period
of
of stress reduction.
strain
gage is mounted
to the
and the specimen
is positioned
specimen
in a
1
t
capable_Of rigidly gripping the tubing_
the prescribed
tensile
load.
The
entire
assembly
......................
,
!
is then
pressure
placed
into
level
an environmental
failures
chamber
in the_event
of their
designed
.to withstand
proof
occurrence.
In order to obtain definitiveresults from this.test, itis of prime
importance
to "exercise" the straingages
pressurizing and loading the specimen
:.
prior
!
gage
to the
actual
and insure-the
start
of the test
satisfactory
to each-.specirnen,by
several times at elevated temperature_
period.
curing
mounted
This
is done
of the special
to .settle
adhesive
the
used
strain
in the
-
i._
i:
_a
application.ofthe-gage.
sente_din Figure
An illustrativediagram.of the test fixture is pro- _
I0 following the.-test
procedure
"
,
r
I_
.............
_
. .............
!....
i
(
•
I--_-_
i
Pcrform_nCc
STRUCTURAL
,,,
',,_,
'"
--. {
f
"'
Test
-_
Class
Class
Z.
Test
Z.l
Z. Z
Only)
I or.ll assemblies:
Z00 ±5 psig.
I assemblies:
to 8,000 psig
3.
Test.Load:
specimen
llassemblies:
to 6,000
twice the
operating
Test Medium:
TEST
APPARATUS
I.
Structural
!"
2.
SLR
"
3.
Hydraulic
4.
Bourdon-type
,.
5.
Strain gage
,_
,g
6.
Calibrationequipment (forpressure,
I
I
strain
I00 hours
Mobiltherm
on.the
by
_
pressures.
5.
m_
_._
As. required
to produce.a
tensile
load
equivalent
to that which
would
.be induced
Test Duration:
B.
psig
450 ±25°F
or,
Z75 _=Z5°F
4.
;-
.
,
Temperatures
Clasal
assemblies:
Class II as__emblies:
pressures
!
8
RELAXATION
Fittings
Pressures
1.3__Class
.5
No.
pARAMETERS
I.I
1.2
li,:
;i
_.
._ .._:.
i_[
TEST
I.
, i'
LOAD
(Separable
A.
!
i
E_valuation Test
at elevated
temperature
600 Oil or equivalent
i
load relaxation
specimen
(SLK)
test chamber
load frame
pressur.e
pump
pressure
(I0,
gage
instrumentation
gage......ins trul-n.e.n.}_
O0(l psigl
(0-I0,000
5 gpm_)
psig)
__
_i o n)
temperature
, and
I
102
1
l
STRUCTURAL
I,OAD
REI,AXATION
--
(Co_t'd)
"
|
....
r
C.
TEST
PROCEDURE
1.
At location"A"
on aSLR
test specimen,
see. Figure
9,
mount a single
element
strain
gage,
MiCro-Measurements
Type WK--09-06ZAU-lZ0.or.
equivalent.
The g._ge-gridaxis.
must parallel
the specimen
axis.
Z.
Install
tensile
tighten
during
3,
Position
the load frame
inthe.SLR.test,
char_ber,
connect
the specimen
strain
gage lead wires
to the .:,trai n indicating
circuit,
and thespecimen
itself
to the pressurizing
manifold.
t
!
!
""
_•
!
the specimen
in a SLR load frame,
and by applying
a
load to the. specimen
of at least 75%x>f the test load,
the tube holding
clamps
to _nsure agai.nst
slippage
the test.
h
• .
':_
" : =
:
4.
Repeat
steps
5.
Increase
amount
maintain
the SLR test chamber temperature,to. 570 above the
required
for the class, of fitting undergoing
test and
this temperature
for two hours.
6.
Reduce
the temperature
conduct
a proof pressure
Procedure
No, 2.
7.
Upon Successful
completion
0fthe
Proof-Pressure
Test apply
the tensile
load required
for.the
test to each specimen,
hold
momentarily
and then reduce
the load to zerO.
Repeat.this
step
for a total of three
cycles,
in order to settle the strain
gageinstallation
and reduce
the hysteresis
effect normally
associated_
with _his. type of test.
Reduce
the temperatures
and pressure
to
ambient,
allow t0. stabilize,
and then balance
each strain
gage
to a null reading on the indicator and .recOrd the zero setting......
_"
_.
:
_,"
_.
""
1-3 for. all
specinmns
ins
perticular
.to the required
test
test in accordance
test
|
run.
t
I
t
temperature
and
with the Test
f
m_
8,
I
i'i
9.
!
Raise
the temperatuze
in the test
chambezto
the
required
has
stabilizedby
periodic
of strain
gage output
amount
for the Actual
test, recording
and determine
when.temper.ature
readings.
i
After temperature-and
the strain
readings
i
strain
gages have
of each gage and use
stabilized,
this setting
record
as the -
$
I_
I03
S_I RI_! ,_ URAL
10.
"
,,.
i
!i.
i:
....
i -.
.
i!
:
Y
i|
and time,
This will
together
with the strain
initiate, the 100-hour
test
IZ.
Upon completion of:the lO0-hour test, record the strains of
all gages, and then increase the pressure to twice operating
pressure
for the class
of fitting
undergoing
the test .and
hold at this pressure
for 5 minutes.
Visua!!l_
inspect
each
specimen
for signs of leakage,_
and r.ecor_d strain
readings
.
again.
'.......................
13,
After the 5 minute
hold period, reduce
the pressure
and.tensile
loads on each specimen
to zero,
and record
the strains..
This
reading
when compared
with the initial
test zero of step 9 will
indicate
a permanent
set or a zero shift.
14,
Reduce the test chamber
temperature
to ambient,
record
strains
of all gages,
and remove
specimens
from.the
load
frames.
After visual
inspeCtiOn
of the test specimens,
re- ......
cord all pertinent
data on the test log.
•i
•.
i:
the date
gages.
During
the 100-hour
test period,
as a minimum,
record
strain
gage readings_at
0815 and 1615.hours
eachday,.
If.
during a visual inspection at these times a specimen leakage
is detected, relieve the pressure.and load on the,leaking
specimen, and record pertinent data.
_:
::
•,
(Cont'd)
11.
-:
,.
-.
RELAXATION.
Pressurize
the specimen
to ZOO psi, and load each Specirne.ll_
in turn to the predetermined.tensile
Strain
required
by the___.___._.___._
test,
using the test zer.o recorded
in. step• 9 as the startirig
point,
Record..
re_dings
of all
period.
',,
LOAD
!
ii.
J
.
; i
SUPPLEMENT
NO.
1
to
STRUC
TURAL
LOAD
RELAXA
TION
TEST%°ROCEDURE
for the-
TESTING
t,.
• 7
.i
OF THE BOSS TYPE, SEPARABLE
FI TTING A SSEMB LIES
11¸
,0s
I
STRUCTURAL
LOAD
RELAXATION
for
BOSS (Reference:
TYPE
SEP-ARABLEIFITTING
Test Procedure
iFEST
forASSEMBLIES
Unions)
7
A.
TEST
""
I
PARAMETERS
Same
B.
TEST
!,
*-
APPARATUS
Same
,5
.
plus Items.7
Vendors
and 8 as follows:
7.
Adapter:
boss
recess
8.
Extension adapter for manifold
in the controlled environmental
to 3/4" pipe (see Fig.
9a).
me
_.
C.
TEST
$
"
adapter
except
for Items
[, 2 and
14 to read as follows.
At location !A' on the SLR-testspecimen
shown
in Figure
9a,
"
.,
.
mount
a single element Strain gage, micro-measurements
T.ype
WK-_09-062AU-120
or equivalent.
The grid axis must be parallel t_ the specimen
axis. AsSemble
the extension adapter and
""
° .
the boss adapter.
vendor in the boss
"_
install the end fittings.
_
2.
Install the specimen
Installthe boss. in .the recess provided by the
adapter.. Assemble
the tube to the boss and
in a SLR
load frame
in accordance
with .
""
Figure- 10a, and by applying a.tensile load to the.specimen
least 75% of the test load, tighten the tube holding clamps
_-
sure .against.alippage during
I,
[4.
Reduce
the chamber
of all gages,
the-test.
.temperature
.and remove
of at
to-in-
to ambient,,
£he specimens
from
record
the strains
the_load frames..
I"
_"
After.visual inspection of-the,total assembly,
re.cord all perti-.
nent data on the test log. Disassemble
the test specimen(s)
and
_
payparticular
as the boss
as
mp
i
the boss and boss
(see Fig. 9a).
PROCEDURE
Same
[.
to place
chamber
attention.to.the separ_able part of the fitting as well
it is removed
from
the adapter.
I
!
1
r
I
0
:""
Iii
""
9.
GASI";OIJb;
In this
I,]';AI;AGI';
test
I I',,,I
program
the
gaseous
leakage
test
i:; used
primarily
i as
a ...........
o.
41.
means
to. detect
""
under
some
ture
of helium
_,
through
_:
Therefore
with
any
of the
deterioa'ation
other
gas,
openi_q,,s
the
which
injection
a detection
helium
device
sa_ffered
determine
tracer
gas
other
agents
a rate
by
used
in this
such
as
of leakage,
test,
allows
test
a simple
cannot
the
bubble
struc-
penetrate.
togethe..,r-
amounts
also
tc_sted
it to penetrate
system
to determine
methoa
being
molecular
and:oil
small
This
whereas
small
int-o.a,
method
specimen.
very
wal:er
of sen_ing.very
sensitive
a test
0f a fittb_g
TI_e
helium
capable
a more
integrity
procedures.
of pressurized
provided
damage
test
in the
of escaping
extent
makes
of possible
it possible
check
as
used
to
in some
), •
,.-
tests
in this
mended
by
pr9gram
others
A VEEGO
•.
detector
together
_i
this
of test.
type
, or
does
with
masc
tube
"_
the
manifold
of the
_"
device
readings
were
type
its
spectrometer'type
associated
bubble
was
simRle
I?.laced_.o_ver
test
facility
taken
Model
"sniffer".devide,
A comparatively
isolation
P
waterimmersion
check
recom-
not.
brand,
a small
test
the
being
before
and
was
me.thod.was
the
test
90AB
after
and
used
devised
specimen
nso.d,
helium
helium
t._x:onduct
wherein
movnted
with
gas.
the
leak
aid
was
in
of the
injected
..........
"shitter';
into
the
me
1
•.
I _
specimen.
In this
manner
t,pecimeO.,
inKo_the..i,_olation
and._when
compared
caLder-aLien,
with
a definitive
the
amount
tube
-:,as
a known
measurernerit
of helium
measured,
lea.kage
ratd
of the
escaping
over
into
leakage
from
a defined
the
same
the
test
p_riod-of
isolation
rat_ _ through
time,
tu_,--during
the
te_t
,J
_.
_:-,
spe_'i_l_ell
cc_uLd lm _t;a.bli.'_hcd.
"no
leakage"
,i;
.,
+
J
m .
mN
_m
t.
I
l
!
The
is defined_as
nom_al
Repeated
,_ossembly
test
sheets
data
test
of the
a leakage
set-a_p
Test
F(J1 °
rate-of
test
The
being
,_Ftlii_
test
1.0 x 10223 scClsec
is illustratecl
Procedure.
primary
th__.l_Url_s_
in t_l_rc
test
data_i.$
conducted
progr:un,
or le_S_
1 follc_wing
recorded
l:he
on_ttie
on the specimen.
'"
l?erformani-i,
]'2valuation
GASli;OUS
,:
""
Test
No•
9
1 ,F;A KAGI';.
(llcfer_.nc_.:
AIII _ 1_,gq)
i
',
"
!
A..
:
i
TEST PA llAMIL'TI'2 RS
I.
:.
Pressure
1. 1
I.Z
2.
,
Class
I assemblica:.
" Class
II assemblies:
4,00G
4- 25 psig.
3,000+
Te rope rature
:i ,
2. 1
Class
I assemblie_s:
450-_F+
•
2.2
Class
IIassemblies:
275°F
3.
25 psig
.._ssur_e
Hold
Time:
10°F.and
+ 10°F
room
and
temp.
room
temp.
2 minutes
!
1
I
helium
i
!
!
,,
B.
4.
TEST
1.
Test
Medium:
APPARATUS
Veeco
2.
MS90AB
Gaseous
.pressure
4..
Specimen
5.,
Envir
Leak
_u_ required
3. ___j3.our.dem-ty,
c_mtroller,
.
Gaseous
Model
equipment
onme
for
source
pe.pressurc
temperature
mounting
Detector
ahoy,
(D-4.
or
and
eq.uivalent
calibration
_. instruments
I
10,-J psig)
gage
(0-5,000
recorder
fixture
nt ak,cha
isolation
psig),
teml_el:ature
tube
_,nbe r
!
.
C.
TEST-PROCEDURES
""
1..
Install
specimens
,
2.
Install
isolation
3.
pri_ssu-r_,
system
Pu3z_e
spOcime_:s
-
in mounIi.nR_f_iNur.Le
tube
wi[h
and
|
_v.cr
used.in
primary,
test
specimens
nita:o_cn
a!_plicablc
porfions
of manif,,l,t
,,n,'l
'!
!
1
_' ..%
i
I
1
ll4
,i
mm
•.
GASEO_iS
I,EAI<A(_I':
(.Cont'd)
i
-_
4.
Raise
d_amber
t_;mp_rature
to d_sircd
h_w:l,
20 minuI:('s
to allow
[or. thernlal
stabilizati(m
5.
Attach_licliurn
,
•
'
!
tested.
'
6.
_
the
fittil',g
.
,w ,-
fitting
of sp_cimen
to be
.
::niffer
Rcco_:d
inlet
for ..........
probe
ze.ro
leak
/hroughiso]ati0n
dt_tcctor
tube
reading
at
8.
Reduce
heliun_ pressure
to zero
and record
near
zero
Pi'essurize
specimen
with helium
to operating
pressure,
class
of, assembl
5 beinlt
t,_sted
and hold for t.wo n_iniltes.
l%ecord leak detector reading every 30 scc0nds
reading
o
detector
set.
the
pressurize
hold
7.
:
,..
Insert.leak
sour_c.e-to
13o not
and
leak detector
for
i
):
[:
(
:
SUPPL.EMENT
NO.
I
i
i
i:
to
i
GASEOUS
, _
i
i
t
t.
Ii
T
TESTING
LEAKAGE
' ;,
.TEST
PROCEDURE
for the
OF BOSS.TYP.E
SEPARABLE
FITTING
ASSEMBLIES
.
...........
iii....
........
]
i.........
....
1 ]
L
116
T
GA SEOIJ 5 LEA KA (.H;_ '/' l,,,"_"_
l.'
fol:
I3OSS 'L'Y]_J'', S]'_rI_AI_A.I.,].
1, I_'11. I-IN(-_ ASSI';MBIAI';S
i-
(llcf_:rgnce_k:
A.
TEbT
1 AI_.AME,]
'l'e,:_t Pr0cc(h_rc
for
.
llllions)
I.,P_S
Same.
r
.,
B.
TEST
A PPA P_A TU.S
i
i
Same
'_
6.
I'
Adapter:
plus
Items
Vendors
6 and
boss
7 as follows:
recess
to 3]4"
pipe
(see
Fig.
la in Repeated
>
I!
[:
'
}"
:
_
i
r
! ,
7.
,
""
i.
°
C.
TEST
Assembly
Test Procedure).
Extension adapter for manif.old to place the boss
ad_pter in the controlled_environmental chamber
in Proof
Test Procedure)
the i,osS
(see Fig. la
alla
PROCEDURE
Same.
.
"
i
!"
t
i:
ti
I0.
CLASS
"A" FIII_]RESISTANCE
TEST
m_
....
This_.test..is
intended
under
simulated
to determine
the fire
re,_'_tance
of tulm
lilting
t
""
assemblies
severe
aircraft
Test
:
conditicns
power-plant
parameters
tha_ parallel
those
taking
place
in a
fire.
as outlined
in ARP
1055,
currently
in tlm..state
of
!
""
revision
merit
i
.were
used
design
and
However,
of the test.
Generally
some
pressurized
also. demexibed
modifications
werenecessary
requirement
therein
because
trol
to protect
at elevated
equipment.
The
the
oil was
seals
heated
•
temperatures
in the high
psi
of 200-230°F.
in the Closed loop.
volume
to the required
followed,
of the new 4,.000
This primarily-involved installationof heat exChangers
System
equip-
_vere
calibration
System
pressure
the
procedures
!
i
in the performance
pump
and
temperature
other
just
con-
.
upstream
i
,
of the test
specimen.
Another
change
from
the ARP1055
was
the use_of
a methane
(2,000aF).
,i
•
torch
:i
!
for is no_longer available.
Simpler
instead
of the
test,
oil burner
in addition_..to
specified.
the fact
that
This. reSulted
the particular
test
facilities
in the descriptive
in a fire/explosion
layout
type
cleaner
of oil burner
and
called
!
Safety precautions included remotely controlled
test actuators, K.closed circuit TV monitoring
o.[.the
in a much
Of Figure
system,
proof..c_ell.
11 following
the
and the installation
The test
Test
loop.AS
Procedure
shown
Outline.
ii!
A
n
!
,
.............
:1
.......
..........
1 ......
....
]-
I
!
,,,,,
'
'.,.
],]vM.uatim_ "lq'slNo,.. I0_
P_,rformance
CI,ASS
A I'_IRE
(R.eferenc_:
A.
TEST
-_
PA RAMETERS
i.
Test
RESISTANCE
ARP
1055)
j,,
:
,_
Pressures
i_, "
I;
7"
I
,
2.
1. 1
1.2
Class
Class
Test
Temperatures
2. 1
Class
I assemblies:
and exposureto
Between
Between
4,.000
and 4,.025
psig.
3,000 and 3,025 psig
.
, q
._'
ii
i
I assembl.ies:
II aSSemblies:
a.s measured
200-230°l_.(max..internal.fLuid
a flame temperature
of 2,000
ll4-in,
from
temp),
+ 100°F
specinlen
n ,
[!
i
P
i7
i
_
I
"
3,
Test
4.
Flame
;
{
Time:
5-minute
Envelope:.
In.flame
A minimum,
of one
tube
diameter
upstream
and downstream
of the test fitting. Envelope
to be Symmetrical
about the horizontal and vertical tube-fitting center planes and
completely'engulf
!
5.
B.
the test fitting
Specimen-Vibration:
@
;I.
exposure
2
000
+
TEST
APPARATUS
I.
Flame
50
_+i/16-in,
displacement
of the test fitting
cpm
chamber,
including
airflow
regulating
fan,. methane
burner
(elements
Manufacturing
Company'Model
equiva.ient),
w.ith 4, 500 BTU
minimum,
heat
output
-.
!.
fluid:
Mobil
Jet
Oil
M-2
....
or
II or equivalent
2-,
Pressurizing
i
3
55 gallon oil supply
j._.
4.
5.
SpeCimen
Mechanical
fire .resistance holding .fixture and CO 2 extinguisher
vibrator
_..
6.
tlydraulic
pressur0
l"
t
I
I
pump
(5,000
psig"
1-1/2
gpml
, J
!
]i
I
:/
1...........
...........
......
..........
] ]...........
.......
1
,
119
"I
(._I,A_H
A I"[1,_1'; I_I,',HI_'I'ANC,
7.
In!_ut
oil
hoister
8.
llm_t
_,xchangor
9.
];'law
(1._00
t
t,
E ((;_nl'rl)
watts)
q
_"
meter__LO.
10.
Bourdon-.type
ii.
Sl_ielded
'
lZ.
Temperature
i
13.
Pressure
14.
Calibration
[
(10,000
05
to
l','l'.tl'.._/minuto)
1. 5 gpm).
pressure
gage
thermocouple
(0-5,000
p.robe
psig)
(,2,500°F
capability)
:!
b
:
.
recorder
and
transducer
and
equipment
.automatic
strip
as
shutoff
chart
required
system
_
recorder
for
above
instruments
i! ..
fi:
" '
['
''
C.
TEST
PROCEDURES
1.
Install
2.
Activate
specimen
in fire
resistance
mounting
fixture
!
pump
inspect
pressurizing
and circulate
the system
ture
at the
re corde
r
i
3.
:
! ;
4.
i'
inlet
the
for
and
heating
system,
oil through
leakage
and
outlet
start
the
the
opera.ring
specified
positions
pressure
flow.::',
and
pressure
the specimen.
, Visually
begin
xnonitoring
the t_mpera
to the
specimens
with
After
the, fluid
temperature
attains
the inlet.operating
ture of 200 to 230°F,
gradually increase the pressure
required
assure
. •
fluid
adjust
the
pump
....
a
te.mperato the.
controls
to
Start.
.vibrating of the
mechanism
and turn.on to the2,000°F
methane
burner.. sp._ccimen
(AdjuStment
flame
temperature
+ 100°F
as meas.ur.ed
at a •point
1/4 in. from
Specimen;::;',;
must
be
accomplished
pripr
to the
!
actual.test.,)
t:
i
'
:_
5.
_
""
•_','-In gallons
I
:',-'::'-Burner
,|
'5
r;
I
1
Maintain
flame-for
Measure
oil
per.
calibration
minute;
either
five.
minuteS
outletinmperature
numerically
conducted
for
equal.to
similar
to that
or-until,
leakage
temperature
square.
described
rise
0f. tube
I.D,
in ARP
develops.
cross
i
t
fLtting
in inches..
1055.
:i!
1
i
•
1
i
' L
I.
CLASS
_:,
.w
A
FIRE
6.
Reduce
pres_ul'e
vib rat o r_1:
7.
Allow
8.
COnduct
include
the
.RESISTANCE
(Corer'd)
to ze_ro and__s_hut off_£he
speci_men-to
cool;, remove
from
_ressure
pump
and
holdin;:: fixture
q)
_"
"-
visual inspection.
For tests of separable
examination
of seals and sealing
surfaces
fittings,
R_
mk
!
.'
Q_
i
..
m
I
:::Test
cell.isequipped_witha CO 2 £ireextinguishingsystem; ifleakage
_
l
Occurs,
flame
will.be
extinguished
and
oil flow
will
cease.
.
......
......................
t......
T
7 .......
.... ]__qLq---- .
SOU'T'HWEST
RES EARCH_1
NSTITu"r E
,I,
DATA_,
_.,,.L'.':.'=T
,,..,-. i-
i_
SUBJECT.
1-
•
i;
TEST SI_,QUI,NC]_
) .... ,"''_
NO. Xl
FIRN
SPICCIMEN
RTCSISTAlqCJC
CODE
i'40.:
T]L'S']?
SHEET..
rm..__ oF__..-_E
_...
E-,-.
PRO J"F_T
....
o;:'..'.,
113-()2,
.
i
DATE
...............
I_Y
ASS]_Jk4".]%LY'I'OJlQUJC:-
(Mi rHrn urn)
'
TEST
il
<
PRESSURIZING
]'
OPERATING.
]
,
FLUID
TEMP...
]£LUID
I:LOW
]<A'II.,:,
FLUID:
PRESSURE:
!
: ,;
TEST
RESULTS1
,i̧T
!I
J •
•
•
t !
i
k ¸
,,t
t
IT
],
Wl
T
,6
.
.........................
,
;
l,t."
I'_
-I
!i
,i'
i
. i
SUPPLEMENT
;.
.: il
_L__!
.._
•
:
i.
NO.
1
to
CLASS
"A" FIRE
RESISTANCE
TEST PROCEDURE
for the
TESTING
OF BOSS TYPE
SEPARABLE
FITTING
A SSEMBLIES
J
t
1,
!
i
I
i
......
rl
1¸--............
1
l,-
i
[_'
t
i
I Z4
]"
CLASS
BOSS
TYPE
_LSP
"A" EII_],_
RESISTANCE
•_ '
forSEPARABLE
FIT'_r'INC, ASSEMBLIES
(Reference:
A.
ii "
!
}
;
""
TEST
Procedures
for Unions)
PARAMETERS
Same
B.
TEST
[i [. _ '
APPARATUS
Same
.
•
Test
15.
plus Items
16 and 16 as follows:
Adapte.r: Vendors
boss recess to 3/4" pipe (see.Eig. lla).
i
!_
16.
!
Extension.adapter to permit p]acement of boss and boss adapter
in the middle
""
C.
TEST
la.
I
Assemble.the
extension
is to be made
-.
,
as shown
:
D.
TEST
Remove
results
path
as
required
by ARP
1055.
but add Item la to read as follows:
specimen.for
\
flame
PROCEDURE"
Same,
i
of the
adapter,
installation
with
the
in Figure
extension
lla
boss
adapter
in the mounting
and boss
and
fixture.
adapter
...........
tube/fitting
Installation
downstream
....................................................
RECORDS
test specimen
and
of tests
on attached
examine
for damage
data sheet.
or deterioration.
Record
: i
!
t
i
[.,
)
Ii
[
...........
, r
a!
l
IZ6
]:
I 1.
'rHIi.:liMA
t
I., SIIOCt(
T} .: purpose
....
assembl.y
....
w.ith
r_,
ratings
--.
are
.imposed
air
shock
i
bly
with
•
shop
air.
:nine
if any
',:
f
I
liquid
tests.
caution
tures
shock
i .
,i
O_
I
]
I
to
of this
test
is to.d,_'icrmine
s0.vere-t,-'ml_eratur'e
,nlid air
of lhe
by
liquid
I_ach
at both
Protective
series
has
injury
follo_w,d
by
occurred
eye
the
liquid
shields
is prescnted
shock
ttie
basis
alternately
and
filling
temperature
these
test_
and
for
of the
test
pressure
._hould
gloves
oil
_nd
the
dry
A schematic
12 following
.test
to deter-
result
of the. shock
be used
as
a pre-
ice/alcohol
test
the
with
layout'of
the
]
],
a_sern-
slightly'pressu_izing
and
hot
externally
alternately
as
tests..
ill }_igure
for
.,_pecimens
to the
of the. fiiLir_
and
chambers
E.y_a proof
to the
exposure
inl¢'rt_ally
cold
extremes
followed
reaction
and. n_{uimunl
are
and
is
from
ma×imum
hot
temperature
c20thing,
to conduct
test..._ztcility
test,
the
both
of fitting.s
separate
o_i the
test
Thc
class
utilizing
damage
against
changes,
mediums.
particular
portion
used
'["li;S'I'"
mixthe
procedure..
liquid
.
-! I
1
.,..7
Pc rformancc
..
Evaluation
Test
No.
I1
T Il[!:
ItM A I,S II0 C I<
(R,:fcrt..nce:
AItP-.89'))
_m
A,
i
•.
TEST
1.
PA B.A NEE TERS
Test
Temperatures:
-65-°F
............................................
i-
(+0°F)
.5oF
+450°F.
i:
a
for 4 hours/cycle
"(+.10.°F.)
+Z75°F
for
(ClaSs
4 hours/cycle.
l and If)
(Cl_.s
(±10°I .')
10._r__.4
hours_/cyclc
s 1)
(Cla_s_lll-
,
_
B,
""
Three
Cycles:
TEST
A.PDA R:A TUS
4 hrs at -65°F
i,
High temperature
g .... Low temperature
"
C.
i
2.
3, ,
4,
Timer
Pressure.
5,
Shop
_TEST
PROCEDURES
and 4 hrs at +450°F
or +275°F
.
oven (+450°F)
chamber
(-65°F)
fillfitting with
I
psig
0-50
.]
1
i
gage
air supply.
1
"
•
::'i.
Install
test
article(s)
temperature
!
2,
Set
3.
Within
""
i
timer..for
5. minutes
temperature
timer
4,
Set
T-
5.
Steps
l,
for
2,
3 and
.transfer
test
stabilized
at
and
-65°F
remove
4 constitute
to stabilize
--
7.
Following
the.air
ture
liquid
shock
at room
temperature
the
fill
shock
test
fii.tirig
II specimens
°_
on fittings
Cap one
t:o ,he
use
o_her
at
end
of 4 hours.
cold_chamber
article(s)
room
above,
Repeat
--
with
at that
time.
Steps
1_ 2,
temperature
conduct
starting
with the
end of-the
spc¢imen
and
the
3 and
conduct
,
!
10wtcmpera--
fitting
assembly
ass-embly
and
end.
hcttempe_rature
chamber
+5°F
cycle.
treatment
at the
to. the
t_st
one
after
-_10oF.
article
a2:ticle(s)
test
specimen
pressure
tdst.
Permit
proof
chamber
+450°F
remove-test
of 3 cycles.
6.
:::Notc'.._Eoa:_lass
and
at
a total
].
I.
attach
temperature
stabilized
4 hours
4 to complete
""
in high
been
.4 hours
the
!
!
has
;'
:%
_;]
of 275°--E,
[Sl
12_
l_ .
ii
]
....
.....
TIIERMAL
8.
,,,
!,
•
roo.a
temperature.
F_ll
tube
with
fluid
at
and pressurize .with air to i0 p:;i_. Check
and remove
fluid..
Immediately
insert fluid witli temperature
stabilized at +,I50°F and
presSuzize
test
specimen.witli
10.psi
shop
Mr..
Check
.for leak_.
Record
result_ and _-emove fluid, This conctitutes one Cycle.
i0,
Imn.ediately
accomplished;
1 I,
Permit.test
repeat
stePS
8 and 9 until three
Complete
cycles
..
are
s
,.
k_
at.
(Cont'd)
"_9,
"'
r,
__s¢(:mbly
-65°F.
Cap fillChamhcr
for loaks..
Record
results
"'
!,
,
St_.bilize
SI1OCN
.""
c-"
specimen
proc,f pressure
_ °
"
to .,rao._.hzeat room
temperature
anct concluct
.test.
* 4
12.
Recond
results following
examination
tions, failures or gaps that may
or failure.
,.
for signs of cracks,
dlstor-
be indicative of an impending
leak
i ,
°
"i
0_
""
i
i"
i
qm
I
'::Note: For
1
Class
iiopccimens
use hot
temperature
of g75°F.
I
" i
I..... 1 It ¸
,.
j
:
,.
_--+.,, .... ,:--A'_. L P+Il._t;_+'l.,..
')l''(Itl(Jrl14";(
_.+I,. lJ_,J_.,l,*,
, I-_..........
-;..................
i
--
!
i
I
+
+J')h+' l'lll+l]
i
_141.:t'.:T
',+I
' "' J_ [Z'I+.
V.,_I[-
(.I
_'_lltl++t,
1
.+,,,
.
t,lO ........
c')
G,LL..,+..__"
;II
L30
+
;.t'_,'
-'J'4,';|
e,,
i_
P g
oo
+o
_'
'+"
_,,j
..;"
• .
m+
::
+
i+'
IIII+
i
..........
_
'
I
+
_
"
;+...................
I
.-+
I,
,;.
I
i:
,':'.
,-,-
, +("/
t-"
0
+_:+
]
.i
_ '++
o•
I
+.
p.+o
..
;l
I
,.,
ra+,
+] ,..,
I_ •
":
_
f-p
I+
,
:
;;
"'
N
It""
;l_.
_
r+, _
_+
","
I-
t
_
.,-,
r:
"
r.++
,',,
•
0
I e"_
0
?,
' 0+-.]
;,+
;
Gi
o
I
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i
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'_ .
I!
+'
r'_
I_
_
L
-
O-
C",
'<::....
0
'
,_
"
i_
[
......
0
P+':'++
'++_+
p
_
_+
° +
+++
"
I ++:'<
+.
+
,_
"_+
_
I
-
1
_rj-.
'"_+
,..+ e]
,,1
t"}
I ,-.,
eo
t
"_ "_ o
'+`'
I__
I
l
L+.
N
I
I¢_
I
'++1
+
+
|i
. ".]"_'T"I ii"
"
PAGE
ORIOIlq'AI+o.U-_"oF POOR'
'_
"
'_:-'
",
_P"'. '_
_
,_
I
iI .....
......
:,,
-+ '
I
t,+
o,
Pc- ,+
,_
+
J
J,
,1
$
L.
4 t
SUPPLEMENT
ii"
NO.
1
/
1
to
!
;i
I_
_,
TI-tt_RMA L SHOC K TES T_P.ROC EDU RE
_.
"'
m_
TESTING
for the
,OF BOSS. TYPE.SEPARABLE
FITTING
ASSEMBLIES
--
r....................
1.........
i11
.........
...............
7] .....................
1 1.... ............
I
137_
:i,: I
.
BOSS
TYPE
TII]'.'I_.M.A
I._
SIIOC I_i'FES_I).
for
S.I.,.PAIiA]?,I,I_
I_IT.TiNG A, ,q"SI.'.M
",'
_ B]_II', ' N
. i
: _'
1_
(Ref0rmice:
Test
Pl'(_cedu£'es
for
Unions]
!
A,.
';
TEST
PARA M i-',1.I',I_.S
_h
..
Sam.e
'-
IB.
TEST
', !
(use
both
Same
Boss adapter:
i,i
! '
7.
EXtension
specimen
[
and
liquid
shock}.
plus Items 6 and ? as follows:
6.
C.
shock
APPA':_.ATUS
I
i.
air
Vendors
boss recess to 3/4" pipe (see Fig. IZa).
adapter
,to place
(see. Fig.
1Za).
boss/boss
adapter
in middle
of test
TEST-PROCEDURES
T -
:
Same
7a.
with addition of Item 7a as follows:_
Tube.end
of specimen
is to be at the .filler_endwhile the_extension
ad a pte r i s...a._t;.,th_....1
owe..r e;_d.....(.s..e..e_.
F_.ig,.!Z..a)..................................
I
1:
tZ
17
i.
.........
" ;:: :._
= ....
,
•
..... ;W-7 "{"'77U"T;IL"
I
.........
_ .............
|
_""'
"rh;ri'aii"''_
.... _'
i....................
1
I
i
IZ.
STRESS
This
CORROSION
test method.ia.intendad
fitting assembly__to.a
'I_
.....
men
_
immersed
__
drain
TEST
as depicted
corrosive
in Figure
environment.
The
the
pressurized
13, following the. test p r0cedure_
into a pan of 6_/0heated
a warm
the r_e...,of
to determine
atmosphere.
salt water
The
test speci ....
is alternately
solution and then allOwed
test is conducted
for a period
to
....
_
of 9.6hours,
i
""
During
this test the_canf/levered
stress
level
union
"
interfa_ce.__This
mounted
";"
psi
is
at a point
on
is also subjected.to
the. tubing
accomplished
with
the
solution
water
in the..bath
temperatures.
as
tank is required
it evaporates
A forced warm
'
mental
chamber
to speed
_
test fixture, th.especimens
""
steel wool
to remove
while
i.
_:_
_
aid
from
the
of a strain
air system
up the drying
tubing/
gage
replenishment
at
is incorporated
process.
are thoroughly
the sediment
to permit
operating
After
cleaned
of evaporated
with a close inspe.ction of the tested assembly
¢
1/8"
a bending
at that point.
A reserve.salt
the
""
of 20,O00
specimen
the-elevated
in the environ-
removal
with. water
salt.
This
from
is followed
with a [0X magnifying
criteria, will be used:
I'i.
•
Slight Corrosion
_"
= Barely
visible evidence
of change
from
original form
Mild
Corrosion
= Few
minor
pits, scales,
the
and fine
glass to detect an,v...signs
of corrosive, effects.
For the sake of ease in reporting the extent of visible corrosion
on the test ass.enablies, the following
of
or disColoration
.
.
Moderate
i
Excessive
Corrosion
= Pitting,
scaling,
etc.
surface area of fitting
Corrosion
= Over 50% of surface
30-50%
area
over
corroded.
7"
,_°
:
'
1
i
i
i
i
"
!
i
""
t
!
iI
_
•.......................................................................................
I
136
Per.fo_,mance
I
(ReferenCes:
I
A.
Evaluatio,% Test
I,ESS
899, STFTS-].51
ARP
CORROSION
Metli0d
811.
TEST
DARAMETgRS
I.
Test
2.
Salt solution temperature:
3.
Immersion
4.
Drying
....
5.
Total time per
""
6.
Total cycle• time:
:
"_
7.
Specimen
internal hydraulic
Class II (3,000 psi)
_'
"'
8.
Bending
lo cation
TEST
APPARATUS
i.
Environmental
chamber
No.
temperature
]2
1 and
MIL-F-].8280C)
140°F
(+I0°F)
190°F
(+I0°F)
!1
...............................
T
<
'_
cycle time_: 5 minutes
time
after removal
cycle:
from
in salt solution
salt solution:
25 minutes
30 minutes
96hours
pressure:
Class
stress produced
by fixture: g0,000
............................................................
I (4,000 psi);
psi _ strain gage
/i
B.
?
i
2.
i
chamber
Cycling'apparatus
drying
times
3.
Salt solution:
4.
Elapsed
5.
Hydraulic
6.
7.
Holding
Strain
for 140°F
for S-minute
per
temperature
immersion
and Z5-minute
cycle
6.0/_
NaCl
@ 190°F "
i
!
time
clock
pressure
fixture
indicators
for
apparatus
Specimens
to induce
bending
stre_s
f
-
!
j.
a.
!
I
]_
..
i
-
STRESS
C,.
'rEST
PROCEDURES
i.
Mount
_
CORROSION
a single element
(Cont'd)
strain gage,
Micro-Measurement
EA-06-.06ZED-IZ0,
on the-specimen.as
shown._n Figure -13....
The. gage grid axis. must parallel the specimen
axis, and the centerline of the gage should be i/8,' from the tube/union interface
'_
Z.
Install the fitting specimen(s)
inthe
support
the. strain gage(s) to a null (zero)•position
:
• '
..
Type
3.
.;
_°
!
fixture and balance
on the strain indicator
Apply a bending load to the specimen(.s) which will produce
the
stress level specified above.
This_is. accomplished
by p0sitioning the bending load set screw (Fig. 13) on the end cap of the
specimen
and with it, deflecting the cantilevered specimen.to
a
point which produces
the predetermined
strain as indicated by
the strain gage
and its monitoring
4.
Prepare
5.
Install test article(s) support
6.
Raise
7.
Attach
8.
Raise
or.
Turn
system
6_/0salt solution (INaCI)
!
i0.
fixture in chamber
salt solution temperature
hydraulic
chamber
pressure
temperature
on automatic
to 190°F
source
and apply
to 140°F
cycling apparatus
Set timer
for 96 hours
continued
cycling
(+I0°F)
and stabilize
specified pressure
(+I0°F)
and
stabilize
and check, time
with daily checks
to hemade
on first cycle
to ins_u_9___..
......
II.
After 96 hours of continuous
cycling, shut 6ff pressure,
ture and automatic
cycling apparatus and allow specimen
IZ,
Remove
specimen,
rinse clean in tap.water, and polish %vith steel
wool.
With the aid of a I0 power
glass, examine
test article(s)
_-
_"
_.
temperato cool
_"
for corro:_ion penetration,• cracks, pin holes o_ potential failure_..
When
necessary
longitudinally cut through or peeLback
fitting from
tubing
to determine
extent
of damage.
Record
results
of tho
/
inspection
l
13.
Perform
burst
test
on
one
specimen
arid
record
results
]
I .'_q
.I "_
.....
:?
,:
][
t
1
0,
1,4
L1
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o
IJ.
:
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_,.;
V7;
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1
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I
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i
:;:_
SOUTHWEST RESEARCH INSTITLITE
I
_
DATA
....
4 ,.-oeiiEiET
SUBJECT '.L']_cSy_5..jC_O__UEN
(-:1,;NO,
I
|,
Sq_;_,lqSS,
;,
_CO]{ROSION
......
st4EET
.
I',',0,_!
PRO.JEc'r.
VYII
DATE ---I_','..-
TEST
....
OF--_ ..... 511EI. If
,a_:--;_1{. '.,:.'.
...........
L59
• -,.
_,
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..
•
0
,
o__-.........
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-_'-'....
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......
Cn_l _]
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lj
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n_ h
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......
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..........
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i
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...i,
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I
,
,
--
.,_!. ,
.............
l........
1
,, ,
DATA
SUBJECT
'
StreSs
%
:
--
No.
Corrosion
INSPICCTiON
P.RO.JECT oi',-3] } 3..(,(),C
DATE
VIii
Test
FtESUL'_S
BY.
FOLLOWING
Extent of
Visible
Corrosion:I:
I
Spe citroen.
Code NO.
SHEET
NO. _ OF_._,_EE
SHEET
Te st Sequence
-'
140
SOUT_HWESTRESEARCH_INSTITUrE
.I
I
l-N
IMMERSION
Other
Inspection
CYCI,ES
ien_arks
i •
ii
i
i
J .
i
6,
!.
!
I
._
........
CLcgend
"": 1.
for
Slight
M-iht
Visible
Barely_ninorvisible
:- - I"e-v,
pits,
Moderate
I
"Exi,-nt-of
EXe(_'S:i_%',.!
:
Gorr,_J:;ion"
eviden¢(:
scales
}'ittin_,,.scalit:g,
:
O_,('r
_0",
or d]sco),,r;,li(,t:
e,c,,
((_l'lr_:;i_m
'_
,n_q(y.;...
r.f :.:lrf;.,',.
_1"(..'. (_f fi_';r
r'c-
1
!i
-.
••
}
"'
SUPPLEMENT
_'
NO.
1
to
q-
STRESS
TESTING
CORROSION.
TEST
for the.
OF BOSS
TYPE
SEPARABLE
FITTING
ASSEMBLIES
l:
_
m
PROCEDURE
i
.......................
h.....
j
I'
STRESS
BOSS
'_Y.PE
SEPARABLE
(Reference:
A..
TEST
B.
TEST
'}'
_"
Procedure
APPAILA
for
Union%s)
.................................
TUS
with addition of Items
8.
Boss
_dapter:
c/_
Extension
adapter,
ter for required
C.
TEST
Vendors
boss
8 and 9 as follows:
recess
to fit into manifold
bending
stress
to 3/4" pipe (see Fig.
thereby
(see Fig.
extending
13a).
boss
adap-
13a).
PROCEDURES
Same
except reference
is to Figure
instead of tube/union interface.
[
ASSEMBLIES
PARAMETERS
Same
t'
_
Test
FITTING
Sam e ....
,_
.TEST
CORROSION
for
13a and tube/boss
interface
1
;
.
m
_1
"1
:"! I
1
144
13,.
VII._,I:_AT].()N 'J'I",,%T
'Fhi,_ t:esl
:
t.hut can
-
taken
,
is intended.to
be withstood
fa'om
in actual
_
assembly,
irJstallaticm
-
system
¢. ,
_,
test
procedure
vibration
excessively
....
end
""
weight
of the
test
re-_ults.
unsupported
]
Series
of tests
cov,,r
conditions
all
be found
test
specimen
('undit.io_,,_
tl_at could
in desig.n,..
the
conditions
scheduled
s to a general
will
testing
of the
the-"g'
diameter
Therefore,
span
for
the
again
within
cross-sec-tion
in today's
holding
jet
a
this
of
aircraft
and
clamping.
boss
fittings
£orces
under
fixture
and
tubing/fittings
a -.16.tube
The
and the
will
deMgn
may
was
of the
unions
type
cap will
fixture
stiffness
impact
of clamping/restraints,
be. detrin_ent.al
spacing
--
of
beam
....
type
will
be of a minimum
The
a significalit
must
and terminal
to a simple
cantilever
conditions.
have
development
changed
end
effect
installations
pert.fitted
mass
fixture
these
a significant
of_actual
due to the heavy
in_the
has
simulation
the holding
suspension
to redace
large_'
once
" g ........
" fo rces
Therefore,
two point
for
and
']?he cantilever
high
fittings.
be used
test
to t..h._ variations
ca_
specimer,
probably
of mounting
results
upon.
...
..
the test
that
method
test
be relied
T_r
exposes
the
no test
the
q'lm
r'_
systems.
the
with
however,
degree
Due
operation,
vibration..paramc'tr,
asse.mI_lic',_,
to some
e`xperie_lct:,
and
parameters
The
upon
service
the. various
£itti_w/iuh6
simulate
will. experience;
aerospace
,,_
by the re'don
MIL-STD-810B
be attained
dc:termia_
the
fox
factor
on the
ideal
a -6 tube..
i
_t
i,
i'
',
i
]....
I
Purfc,r_,lnnC_.
ii
I_valtlalion
No,
13.
l.I,,S_"J..
"_
VIBRATION
,i
,/,
Test
(Sepa_'ab].(,
De,_ip, a,_:. Only.)
(Ref_;rencc,_i: MII,, ,,t] .,8_0B)
•
A.
_'"
_,.
?
,M ,,
';
.,
TEST
PARAMETERS
1,
ReS,manc_-,
Z.
ReO_)L,ance dwell:
3.
Sinusuidal
4.
.
.. Sweep
lO. min
search:
30.rain dw('ll time
cycling:
time:
3 hours
15 minutes
curve
at ea.ch resonance
(lesS dwell
time)
= 2, 5 hours
(frequency
,,r'-500-5)
(Fig
bl4.
(frequency
5-2000-5)
(Fig
or failure
determination
I
I'zl')
.....
20 minutes
=
curve
51_.
i
_.*Z _')
i
"'
5.
Ambient
temperature
*
6.
Internal
pressure:
400
psi
for
leak
l
B.
....
TEST
APPARATUS
1.
Single
2.
Sin_pte
_.
3.
Vibration
""
4.
Automatic
5.
Vibration
TEST
.PItOGI_DUI_GS
l.
Mt)unt onL each
fixture
(supported
2,
Attach
G.
I
1
I
3.
end
holding
heam
type
table
holding
mount
vibration
for
and
test
tul,e
Install
vibration
pressurize
a boss
fixture
for
fixture:
specimen
union
type
specimens
2 axis
system
specimen
each
end).
on si:nple
fixtt|re
in _ h(.ri.,,t,nta!
and
type
accelerometers
_l)ecitne.n.holdin;;
with
for
exciter
pickups
m(,tu:t
and
fixture
,t<:ccl0rom,:,ter
to .t00-psi
using
solid.17
p,,,:_ititm
beam
t-o shaker
and
pichups
nitrogen.
type-hohtiug
table
fill._kktLftuid.
on test
specimen
..............
1............
.............. ....
VIJ_ICA'I'ION
;
,1,
'it.art
""
""
6.
!,
_
l_oi:ate
pdr.aliel
thv
fitti))v,
.'il_("Cillac n,
and
sit
" (Colat'd)
r,,duezrd
,_f the
fixture
and t":_t
nc)rm_l
to the
frequency
Vibrate
the
witl_
noted
test
MIL,-STD-Sl0B.
be swept
over
.
danct,
Table
with
514,
re_aonance
specimen
applicable
in Tables
tile
dwellmust
bc
alor_g
1-I
using
t:_U. Ch
tlw to'St spccin3en
at
d<:l.,:_ _,._.i_n.cd
r.edm;a)-.ce.
bt:_.rfoznaed
thnn
one
the
test
levels,
514, 1-I and
514,
i!2
must
If.more
The frequency
specified
range
Figure
1-,TX.
]l't'(ll.ltr/)Cy
by exciting
p]',-vi,.)tt_;ly
":
dance
times
r,..'_,n:;.ntJreq,_enci_,s
I't:tit.))lLlllt
freq,.v:n,:ies.
Re ,s onanc-e
dwell
minutes
¢_:a the-critical
axis.
cxist._,
tl,-v¢,ul.'.h
speclznen
t,hr¢,ul.'h
two axis;
lonl'_it,_di:J_JJ.
_):;i,'; ,-;f th : t_tl_t:/
l)et,zrl_JiJm
]_t:rft)r_n
r'..'sonance
dwe}l
ea.c}_ of. t}).,: _,_.ost. sevel'e,
_
l evt, l by.. t;v,¢( ,,lfin.g
det,'rn,;,,,,tior:
i
7.
i
'_ca_,:h
lt:a_ma21t
the ,'L_t:ctr|m._
for
of tll¢' tet_t article,
5,
TE,_TF
30,.
conducted
critical
frequency
Figure
for
t:r_t,_a_
fo_
axis
)n acc_r-
range,
514. l-I
and
fron,
,
of applit:d
vibration
shah
lo,jritb_nically
in accorthe
frequcllcy
band
in
o,
:
:
8.
Foltowing
test
article
7"
for-signs
':
frettinv,
"°
9.
Ifno
th,'
,
completion
is to be
of cracks
ov_p.lastic
resonance
sp_ci_en
of the sinusoidal
cycling/sweeps
rem()vcd,
disa.scmM,-d
and inspvcted
or
other
failures
deformation.
frequency
will
tlxcn
Record
can
be
_:s well
cycled
the
be determined
.at
500
her-t;:
as
the
galling,
results
for
i
i
i
a specimen,
in Step
i_.
i
;,
[
[
<
<
!i•
::
SUP PL]'EMENT
NO.
l
to
..,
i
""
VIBRATION
TEST PROCEDURE
for thc
TESTING
OFBOSS
TYPE
SEPARABLE
FITTING
ASSEMBLIES
.........................................................
_
_ °
"1'
I
i
....
- ......
r..............
l-......
] .......
......
1
,I
i:
\<
14q-
I
'
V I]3 RA 'I'I(]N
fc)r
11
13o.sS.'rYpE
(Reference: SI,]lgAI-{A]]L],;
'fast.
.I I,_) 1.
FITTING
Procedure
AS,ql-:M]3].]:]::S
for-'Unions)
.t
],_s'_
PARA 5_.],_
TI,]R
S
{
San_
13,
TEST
"'
Ii
e.
APPARATUS
Same.
-"
;:
C.
TEST
PI_OCEDUR_
m_
.
iF
i
Same
except
use
single
end holding
.-
i
i
........
I
fixture
for
the.boss
a._semblies.
I
I,
...
]
I
. i
I_0
1.I,
]I()'I'AII'd--I'I.I'Y.
't'll¢:
,41,
"
I,
LI!',I,} 'I'!,::.-;'!'
rc,ta_'.y.l_c,_t_l
'i¢.:tJ(. ])I lJ}"1';_}_l
_-_'
lh"
f_C'.Y.LI]:u
fatigue life curves.
this prol-ram,
i
mining
:
I
ht_s
_. :
by
_.
i
which
t}_¢: most
daI:_ for
to
pcrlorn,
rimph:,
':i
,
used
1:
dild
by _ome
test:,
cla;;r;ic:leristic
t_)f _/]q
stringent ;cst conducted
in
to be the lno,_tuseful in deterThercforo
in
efficient
b_. ,l:_cd th.v().i.h+mLthi,_
(]t_','I'l(JplTl_'l_|
the_designer,
the
and
Generally
"
i(_:St
wilJ
I_I_VI,',I,()I'MI'.;'.J'
the
most
n_.:,cl_,.'ne
considerable
repetitive
effort
manner
design;....h._c.s.tandard
possi|_le
-
procedUreS
are easily lollowe-l.
'ii
i
,_f l,':iti1_I',
apd i.qconsidered
n_ade
,_;/I.! J)A'I'A
"_'_
l},lo is by far the most
\voL'thv.,l_ih:
iw,.'.:n
2_,'lh,M
Wltl'l_l
..
as
guidelines
in
a manner
schematically
Since
the
tested,
the recommendations
in performance
which
will
in Figure
original
of the
permit
15 and flexure
as can
work
a change
statement
from
found in ARPIl. 85 (proposed)
the
test.
of
be the
Seen,entirethe
stipulated
test
The
set-up
that
te.st
facility
were .........
is shown
union
specimen joint isassembly.
clamped
union,type
recommended
fittings
in ARP1185
would
',',,as
be
nccessar,,
1
The
defined
as
diameter
fitting
.,.
joint
""
the
:i
actual
the
fit.ti_g
.of the
the
• _.,
portion_ofttlt:
interface
fitting
.gidc
of
the fitting.
itself
envelope,
and
+
interface
is located
T-he
portion
edges
used-in
l/B2
:'pecimen
regard
of tubing
In the
would
With
he the
gat4c
the
with
interface.
fitting.
would
envelope
fitting
tube/fitting
tube/h_tu_g
The Strain
_,
test
be-at
rcspec.t
case
the
d,.:tern:ining
is
the
of a butt
on either
to a permanent
of the
the
tube/union
clan:ped
test
on either
weht
on eith_.'r_.end
from
to this
program,
side
is
within
welded
side
one
separable
of the
braze-type
actual
union,
fitting.
bending
stress
interface
at a point
which
applied
on the
is equal
to the
clamp
to
i
|
_
1_1
]
.
l--l/?,
I
'_
lub_'
(]iallw[cr
d¢,tt, rmili¢.d
;,;.; bci,'_.,,.llle,
rniuimun_
,,
_
of S-train
..
The
-"
di';t,LJ_ce
wrapped
_;i
_vhi(],
may
:..
I.D.
was
eff,.vt
with.
on
also
rour_dcd
tub_:/i'iltil_0
p,._i_fl to grip
lhe
l_:tIy., ca_,,_(_d
underneath
a.i-n_l
p/'t:cil,;.t;_l._:
lho
olltimum
tubing.di_'ectly
Spii'al
llr(,lll
thick
iJll,.rF,tct_.
the
by
th0
the-edge
TFF:
tube
to prevent
a high
rigidly
clamp
to reduce
failures.
with
th(..
bushing
chaffing
The
stress
wa._
cla.nH)iLlg-forces.
of the
tape
l)l't'.rnaturc
t_uhe
This
e_i_,e
was
of the
of tlie
tube
bt_h._ng
riser.
i
""
During
!
'i
gages
._
of bending
""
the
by
-.
were
test
)
I
rnountud
stress
loosening
motor
static
stress
the
lnachinc
aid
of an
is
and
assembly
of the
drive
at 90 ° apart
lev,-_ls
specimen
correctio1_
]
the initial equipment
levels
factors
were
oscilloscope,
on
alignment
base
only
all
required
detcrmin,:d
and
...... Since
its
own
and
strain
_age
nubsequent
because
at each
checked
test
instal.latir,
true
zero
rcti_;htening
while
the
was
to determine
runs.
of the
position
periodically
for dcteimination
n procedures
alignment
tailstock
one
te_t3, two uniaxial sl.rain
on the trial test.specin%ens
to seek
swivel
running,
"sLake-down"
and
needed
Dynamic
inherent
stress
forces
durin_
during
trial
the
al].ow
level
produced
tests
test
with
by
the
program.
........
I
'
1
[
•
1._2
I
l_(:rf()rrnance
1
],vnlu,
llO'I.'A
(For-304-1/8}t,
1{ Y l" i ,I,,£U
Ar)t_co.,'.l.-0-9
117......
(l_ete)',,nce:.
"+
A.
i.)un
T(,._;i.-NJ-).,
PAI{Ah4
l.
Test
Pressure
Z.
Te.',t
Ten_perature
)
4
RI.,- '].'ES
,%. S,
nnd
'].ki-3,%l-.L,
MI L_I;'-' 1_{?.80C,
TEST
4
cSV '['ul,in_'.)
ARI >- 111.I5)
E TI!'] RS
(psig):
4,000
3,000
--.
400
4_
(°F):
-A:Z5 (T_:pe
:_:2,5 (Type
"-kl0 (7'ypc
1)
]I)
] a)_ct 11, zero
=65°t _" "a:10: _-450°]/'
(Type
l)
-65°T ` :_10; +275°F
....
pressp.re)
:kl0°;
Rom'n
Tenq).
+10°;
Room
Temp.
(Type.If),
:
3.
!
temperatures
fittings
may
Cl.lr
_.
Rotary Bending
Stress:
acceptable
S-N curve
Pressurizing
Media:
tempe
i
of rotations:
Ra.tc:
3,000
for
rature
TEST
APPARATUS
1.
Environmental.
.,
Z.
""
3.
4.
Any
combination
Type I or Type
for
rotary
Rotary
high
flexure/fatigue
of
li
S-N
specimens
minimum).
Thatwhich
is.required
with at least
two points
Chevron
M2V hydraulic
temperatur.e
tests
to develop "7
beyond
10'.
fluid
or
- watertm
an
--
room
tests.
chamber
flexure
Hydraulic
Ames
dial
107 (two
±150 rpm
test
pressure
gage,..
machine
pump,
0. 001=inch
,_,
5.
6.
Bou_don-_ype
Oscilloscope
pressure
"_
7.
Te.mperature
controller
_,.
g.
9.
Temperature
Calibration
rec<_rde
equipn,ent
'
,
ves.
6•
,
,
and pressures.noted
used
to develop
Number
Rotation
equivalen
_
be
a
_.,omblnatmns:
4.
5.
7.
B.
e-_
Temperature/Pressure
6,000
psig
graduations
gage;
output
0-6,000
pressure
..........................................................
p_ig
J
r
as
required
for
above
instruments.
]
C.
TEST
PROCEDURES
I"
J'
1.
At
affix
'
|
I
loCation.'"A'Y
a.single
on.the
ele._nent
EA-06-06ZED-1Z0
and
..16
specimen
(-6
=pecimen).
axis.
rotary
strain
flexure
t_el, e (Mia-ro-Measurement
b:)_CilI_tll)
The.gage
Also
specimenCs)(see
spiral=Wrap
I...:A-06=125AD-I_0
or
grid
axis
tl'e
must
Z" long
Fig.
"l'v:m
f-l{}
parallel.the
portion
14)
of tht.
-
I,_()TAI_.Y
I'
sp.ccin_en
.
....
(Fig,
14).so
eccentricity
,'-
In,-!icator
,....
..
the
frc, ni parl
r)f tho
bra:,:;
tht,.t lhe wohble
bearing
(variation
sho;_iid not
Reading),
.a(. each
test
11
housing
is near
zero
cxce(.d
.00,! TIR-Total
stal.ion
or_ the-flexure
machine.
3.
I
i
be within
will
¢I_W_C_
L
I.
whi.ch
(C,,nt'¢t)
clamp
for-uea]b,!,,
bu_lfingpipp, with
t.hr.eads.
I/?,!' wide
'I'hi:_teflon,
is
tape to.prevcl_t
norn.aally.u::edchaffing
of the tubir6q
under
the d;unp
lm,_hing.
_,
',
I,'I,l,_Zlll(E
"
,_:pecimen
in its re._1)ectivc brass
clamp
half of lhe specinmn
support,
and
_,v, wobI-le bearing..
Position the
load
pin .inlo ,a,
longitudina!!y
so that
the ed_'e of the union
t:r,x'clope
Loo:_ely cradle
bu:;hiiigs
op. the
insert
the
s_:cimen
:
_:[
ii_
....
I,
each
lower
(m some
cases
tile butt.weld.between
iitt'ng
stub anti '"_.:"_
........ g_,
is 1.5 tubing
diameter
chstance
from
the edge
of the clamp
bushing,
and has a space
of 3/8"
between
the s_)ecimen
end
cap
and
wobble
bearing
housing
specimen
so that
the strain
most
part
of the specimen,
of the bending
load.
_,
_"'
,..
4.
Connect
circuits,
all strain
balance
....
5.
Lower
the
and tighten
(]_,ur_
4- no*
14). Orient
.]._
gage
(Location
A) is the upperto facilitate
subsequem
application
gages
to the
and zero
the
balancing
individual
upper
half of the speci_nen
all bolts
to a snug tightness
and couditioning
strain
gages ....
support
being
--
into position,
careful
not
.
to exceed
a clamping
.;train
of 200 u_in/in
on each
specimen.
(Normatly
snag til;htnoss
produces
slig]ltly
more/less
than
100 u in/in
strain).
Excessive
slr,_i_,
r,,quires
insr)ec'.ion.
""
_.,
of the clamp
fi::tures
must
be eliminated.if
and-specin_en
possible-before
Loosen
bolt
""
6,
.,,
half
_'"
bri¢)tly,
running.
,.,
the
,,f i],e
alignment
specimen
support,
and letighten
This
proc.ess
orbital
allow
the aiignnmnt
should
settle
(loading
head,
test
specimen,
as near
a perfect
alignment
bolts
are lightened
securely.
.v
to.the
to determine
rcinstallation.
1he
bo]t
the
cause,
ha.,'e
of the
drive
motor
x_hilu
entire
_xvhich
lower
to tun
motor
is
assembly
and specimen,
support),
as possible.
Check
that
to
all
d.
7 ......
i
]
I,
Disrega.rd
and again
This
will
:;tr.ains
balance
be the
due
to foregoing
strain
gage
output
test
zero
posilion.
installation
to a null
procedure,
(zero)
position.
............
I
I_4
I
,
ROTARY
FLEXIJI_I<
(Con!'d)
1:
•
8.
_.
notil_g
r,:co1"(]_lip.
;_¢ throuf:h
tl)e be;irhiaone iJov:;':;i,;
]-ovo],,,cn,
Ytotate and
the loadinr-head
_',_,-,i,l¢,t:e:
revr_lution, any .
deparl.ul'e
of strain
fl-on__ti_c.te_ot
zero.otnctined.in
5top 7..
Any. varlation
of + 5 Lt in, /in.
requires,
sl_ec[al
analysis
of
the
....
9.
cause
Rotate
in lb_e
and
subsequent
di_spen_ation.
the loading
het..d _;o tl,_-t tim a_;is of loadin_
\,.,i:h the str_:"
F;,,,,r- oh _,h,., sr, cciu_en,
and
merit
sc,-av"A" iq tup._ide,
advance
screxv
"A" m,ti.l.the
"'
,,
Reti[,,h_:e,_
dial gay.e,
adju:_iment
record
th,.
pot:itioning
,.
pin
10.
,
end
Slowly
noting
These
the
of the
dial
lketracL
desired
_,:rew
final
shaft
specimen
v,,it]_ the hid of a
of "he specimen
bv
box .p,_rtion
during
the
_
and
obtained.
o[ the
loading
c__p n t the.
process.
)
rotate
the loadin_,
head
throu_,.b
two or three
revolutions
with each
turn
the rnaximun_
and l,_inimum
strain
vaiaes.
values
should
be relatively
equal
in ma!,,nitude
{v.,ilMin
50 rain/in.)
load,
remove
and opposite
the specimen
in sign.
f,"or,,
cause
is found,
rep.lace
old,
repeat steps 3 throu_;h tO.
(Note:
Dynamic
strains
are
:
,_
adjustment
sc_cw
strain
l'eadin__is
"B".
(Note:
dj.cDlaccrnen_
or, the.
is vertical.,
the..adjust-
LII not,
reduce
the machine,
the cantlle, vered
and if no otb.er
strain
gage with a new gage
and
llecord t:m_e test strain values.
calculated
on tl,e test
hw, u,._inv, a
correction
factor
o£ i. 1 which
was determined
tests
conducted
with the aid of an o_cilloscope.)
11,
Repc_at
Steps
3 throuah
is to be tested.
12.
Record
ti:ner
,
..
of each
makiPg
pressure
shut-in switch.
,_,cvre the test machine
certain all protective guar,i, _,'e ._npl_ce.
Inlrori_,¢'n
:
required
pressure;:
level
a,_ required
,-
increase
take
i
',_Refer.
"'I
to sequc,,mz:
setting
I0 for
for
stal
test
ions
position
in which
and
a specin_en
check
operation
and check-re,
leak:_.
Raise
temperature
to
by test
and al]o_'
to stabilize
..... (Note:
l)urin_
in temperature,
place
each
all
by preliminary
to prevent
te -_;ot.n_.,_'ha. rt for
periodic
ven_in_
overpressurization
required
MS fittin;t7 ..... ,,':li _..,
L;5°l ." ),"],:_,r,,tur,
sure
tests
will use 40o psig
pr6:ssure.
,,Dd
pr_ssur¢_
3,_'00
of: pr-es
of_the
p.¢i_
and
test
sure
mu_t
_pecimen.
)
'er_- pe r,tur,,.s.
i)r,.s.ure,
X,.ro
,.r_,s',}
'_----
t
L
i
i
r
1
1
""
!
_-
}
-
I_.O.TARY
13.
Start
each
FI,J'2XUI(J'_ (Cont'd)
test
position
the
th,tC '
as intended,
it i:s apparent
perf.o'_'ming
,_nd
t
e:at
ob,_er,.,c
the
spc;cimv:_,s
During
t.he
t:pera_i,,n
vi_,_l,,1]:,,
al.:. all co:,,pon:".:,:
sub.'_cq,_cnt
t_,st p,.viod,
tml;l
,re
.
I
-,
pre.qsur-e..._,
in eachspecimen
at the lexe.Js
required
hy
....
plished
l-1' periodic
rnan,.,al
ventino_, o-f c.a_cess
due to h(ct/hlg
in the specimen
caused
hy the
14.
:"
15.
"
Fai]ur.e
mac]Sue,
of an,:" specinmn
will
if failure
occurs,
Enter
failure.
in i-he test
The
pertinent
recording
data
log
any.....qheck-for
stress
machine
with the
must
be
Upon completion
and redaace
the
of 10 7 rotary
cycles,
chamt)er
lemperaturc.
...
inspect
rious
the test
effects.
fittinFs
Record
..
graph
specimens
as
required.
program,
the
rotary
In this
data are
verifying
at three
i
the curve
tc._,s
wili
All
]
1
tests
in the
with
of the final displacement
once
the
reduce:;
pres-eu:'e
flexure
autornaticallg
st-op
record
thenumber
,he time
under
.te ct-lo
(iqot,".:
k. a''
...c,,.me
"_'" , sper.q
fore,
17,
n:onilored
and controll_,rl
test.
This
can be acc,,:n-
ple/ed
and calculate
st6ppa_le •
occurred.
important
because
of the strain
gages
16,
should
be
parlicular
lhe
flexure
_1-,_-
the point where.
= 3, t)O0 rpnl. )
reason
on the head
.................
,or
stock',is
rm_ning.,
reliability
of cycle.,_;.
There-
correlated
for damage,
all pertinent
,1:'it teat
of cycles
apparent
starts
number,
t0_:i!duI,'.
cyc!eq.
by
shut off
Remove
displacement.
the tes'.
machine
specimens
and
cie:orn:ation
data
in the
test
and
flexure
ro_ary
or
o_i_er deletelog and pl,oto-
f;-li..
_..
to bc_ generated
for use in plotting
the S-N
curve
and
the endurance-limit.
The first
tests
v.,ill be. cop.duc:ed
stress
!evels
to establish
the veneral.S-N
curve.
Frum
the e_durance
limitwill
be
be u:,ed to.e_tabliah
_md/or
will
preceding
utilize
steps.
the
rotary
flexure
determined,
_eri[y
the
test
The ron_aini_,_:
endur-an_d
lin_it.
toe'.hod
ovtlined
" '
I
l
i
---
•
I
--I
..........................................
I
l
I
I-
Ir_6
L
& _x,I /
....
I
,:,
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I\,'\,\",,
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.,.
.---'..-.-.-_-._.'.
.
I ....
I,,,E A -,
""
,. ', ",,,
#_ '_'
_
_
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F_.I__c
r_
i'.
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r, ..................
'_
,-.,>i
r',
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h,,, ,.
p....,
".
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_
-_..ll'ic::.__-I\..
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,,
,
,
,,I
u_
_, ',.,,
'I"........
L_ I_:';-_
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.,x \I/.%
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"_
,_!'. :. "_." :-_-___..d,,
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-_
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",,.tL._ - ! :/,.'/,,,
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,,
I,,. t. ._! _,"j, A"l
,
_.., k(,
_;_ ",:;I
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"'
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•_,\",,\.',,,_l,:i . .::i"",,".']".!":
k".".."...X
i" :'l
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L\"..\\',,x,,._<t,i t..,.'/'///I
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,
r
._I t' _ ". _'/ "'
-.
!42-:!,': '/,I ,---_
i!,!."" t_'x::---:
."-_-'., .',
' \" "-'--,'x%'!'' _,'.',,
,__, _,'_
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,,
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t",_
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,_._
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1.............
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l
....
1 5q
p
:,!
i
'
I
SUPPLEMENT
i
.
i
"
-[
NO.
I
to
ROTARY
FLEXURE/FATIGUE
for the
TEST
-
PROCEDURE
.
•
I
:_
,
TESTING
OF
BOSS
FITTING
TYPE
SEPARABLE
ASSEMBLIES
i
i
l
i
................................
•
.........
,
,
, ,
i i
[I
l
l
!
t
i
'
i
_'
1 (_0
I
.IIO'I'AI_."_'
I,'l,i,;>_IIl_E
Tl,:,q'i'
f_)r
]_,OS,C_
' '.I.'Y1_l,: ,'_I,:I_A]_,A 1LL,1,; ],'Y'.I"J'ING
(Re£_,re_ce:
'Pes!
.[_roc;edur.e
A,.Ci_l :M l, I_11,.:,q
1)_LlJnl_ms)
"I"
A.
T ].:S'].' ]_A-RAM1
'_,'I"I,:R S
13.
'].'I£S']' A]PI_A RATUS
i'
"_
_}:
Same,
with
addition
10.
]_oss
adaptcz_:
!1.
Extension
installation
TEST
PROCEDURES
I.
At location "A"
,_f Items
l0
and
l l,as
follows
(see
laiR.
1_,).
,J i
fi
Ii
""
"i
--
[_
C.
\rc]_doy,_
adapter
point
boss
06-062ED-120
..
specimen).
2.
With
the
The
i
14a) so
(variation
that
!
at
test
3.
each
Loosely
cradle
:'
i,
wobble
bearing
the- strain
gage
lower
half
.
strain
balance
and
zero
[
6.
Loosen
tht,
specimen
must
(-10
parallel
the
the
loading
bearing.
of 3/8"
housing
(l,ocatioa
gages
the
aliginnent
support,
of the
and
•
Orient
uppern_ost
•
al_plic.ation
lt_
strain
to the
allow
t'he
.-
(Fig.
specim_,n
the
the
load
lonftituca D, and
specimen
part
of iht
bt, nding
so that
a},cciload.
conditionin_
orbital
drive
circuits,
ga_cs,
i
the specimen
._,pport
into Dosili_m
all bolts
to n sm:g t ightm,ss.
belt
axis.
eccentricity
ReadingS.
insert
of the
ba_ancing_and
individual
EA-
and
toilet
Position
of the specimen
between
the specimen
end
to the
Type
specinLen
head
portion
suppo,'t,
(l_ig,.
1.ta)
A) is t_c
14a)
hih'ne,
adapter
specimen
l.l;_).
to provide
(Micro-IMcasurennent
adjust
extension
th_ upper
half.of
stock
and tighten
the
axis
subsequent
al:l
Lower
the tail
grid
of the
the wobble
for a space
Connect
5.
Fig.
(see Fig.
a_,A,06-I25AD-120
_n_thn_Xk'xume_ma_c,
to facilitale
•-
or
gage,
the
pin.into
dinally
4.
gage
station
":
_,
(see
the wobble
bearing
housing
is near
zero
should
not exceed
. 004 TIR-Total
Indicator
in the
men,
strain gage
spc,'cin_en)
of a.dial
i
ii i
pipe
_n the rotary flexure, specimen(s)
(-6
aid
to 3/4"
for clannping
in the tail stock
and
for boss
adapter
(o_',._._Fig.
14a).
affix a sh_gle-ele.ment
':
recess
base
motor
in
of the
lo,,vc r half
to
briefly,
run
of
amt
/
/
161
I
I{O'I.'A
IIY i"I,b;>',
111{.
I';'I'
l,;S'.l.'
((_ ()!.).! i.(.!)..............................
rel.ighl.el_
1,1_' ;LJigl...nent
bcdi. wlbiIe mu_or
ia runnh_)t,
c_ss :_)louLLd se.l.tl¢' th_ _l,liro
a_t_elnbjy
([o.ldint.,, h¢-;,d,
,
lll_llj
])(')YJ
'.I'll.is prc_-le.ql sl)_cD-
_lllt)_;l).(_C111)Ol_h;II])_)(;l'IrJt
t(-);IS li(_.al
' _i ])_'rf_)¢.t gi[l_-111)l(.')li
;_!4
_il)It'
t
(_]!(''(:I_
tlI_'[l[
Fl_] I
])(}1
[,21
tiRhlened securely._
(| l'e
,t L
7.
])isrcgard
again
""
strains due. I.oforegoin_
balance
strain
otttp_4t
to a null
8,
B.otate
the loading
head
through
one
and. recording
a.s the beazhlp
housing
of strain
of +SLlin.
quent
9.
.:
po._tion,
This
from
/in.
Rotate
the
loading
with
screw
screw
the
strain
final
screw
so that
gage
on the
"13".
of the
Slowly
noting
rotate
.the loading
with each
turn
the
.
These
values
,.
rain/in.
_
load,
cause
_,
) and
opposite
i'
,,.
bc
cap
variationand subse-
with
Repeat
to be
Steps
tested.
12.
IKecord
timer
each
pressure
and
the
vertical,
the
aid
of a dial
by
positioning
end
of the
in
adjustment.
screw
"13"
is obtained.
at the pin
.......
_:elatively
equal
ill.sign.
If not,
from.
strain
10,
Record
cal.culated
3 through
is
specimen
and
adwmc¢
Retighten
gage,
the
reco:'d.
dial
specimen
10 for
reduce
these
the
on
all
in magnitude
the machine,
gage
with
factor
of 1. 1 which
was determined
with
the aid of an oscilloscope,
)
11.
of loading
shaft_
during
-
head
through
two or three
revolutions
maximum
and minilnum
strain
values.
remove
the specimen
iS found,
replace
old
peat
Steps
3 through
Dynamic
strains
are
axis
specimen,
(Note:
portion
of the
p_Locgss.)
should
the
1Kc:tract
adjustment
desired
strain
reading
displaceme:_t
on the he×
the loading
10.
revolution,
noting
any dep_lrtul'e
zero
obtained
in Step. 7.
Any
special
analysis
of the cause
head
"A"
i_ topside.
"A '_ until
the
adjustment
the
the test
requires
compl.ete
revolves,
di spens:ation.
line
)
.,
(zero)
and
will L.J tl_otest zero po:;ition.
....
_.
gape
installation procedure,
by
test
kest
the
and
a new
(within
i
50
cantilevered
if no other
oa,,o and ro-
i
strain
values.
(Note: ......
log using
a correction
preliminary
tests
conducted
_._
t
stations
in which
a specimen
is
Q_
t
)
•_
certain
L
l
pressure:::
'
I
all
setting
shut-in
protective
and
check
for each.
switch.
guards
for
:::Rcfcr
to s_'<lUenCe
testinIa
chart
for
MS fittings
will use
g75¢_kv"temperature
sure
tests
will use 400 psig
pressure.
test position
SeCure
tb_
are
in place..
leaks.
Raise
required
and
pressures
3,000
psig
and
test
check
machine
Introduce
temperature
opuratio)_
making
of
recE,:irud
to level
and tcmper/_turcs.
pressure.
Zero
as
prvs-
I
162
t L,_ .1.(Cont'd)
J._.
0 TA R Y I e.l,1_',
X l ) R E "' "_'' '
I
requh:ed
by to. st and allow to staMlizc.
(Note:
Durin_,_ inclu,;,..:_,
in tempera(ure,
per.ioclic
venting-of
pres._mre
must (.nko pl;,ct_ 1o
in'event
overpre.ssuriz:_l.ion
o£ the test speci.men.
)
....
..
:
""
13.
.' ....
:
:
::
i
t
14.
Failure
of any specimen
will automatically
stop that test machine.
If failure
occurs,
record
the number
of cycles
cempleted
and calculate
the time under
test to the point where
stoppage
occurred.
(Note:
Machine
Speed = 3,.000 rpm. ) Enter
pertinent
data in the
test log with apparent
reason
for.,failure.
15.
The recording
of the final displacement
on the head stock is important
because
once the machine
starts
running,,
reliability
of
the strain
gages
reduces
with the number
of cycles.
%_herefore,
an 5, check
for stress
must be correlated
by displacement.
'
:}
i
,_
.
16.
Upon completion
of 107 rotary
cycles,
shut off the test machine
and reduce
the chamber
temperature.
Remove
specimet,
s and
inspect
the test fittings
for damage,
deformation
or other deleterious
effects.
Record
all pertinent
data in the test log and pl?otograph
specimens
as required.
17.
In this program,
tile rotary
flexure
and rotary
flexure
fatigue
data
are to be generated
for use in plotting
the S-N curve
a,nd verif3,ing
the endurance
limit.
The first_ests
will be conducted
at three
_.
,,
-,,
""
....
1
i
Start each test position
and observe
the operati,m
visu;,E}. ,_2",til
it is appare.nt
that the test specime.ns
and all components
are
performing
as intended.
During
the subsequent
test
period,
pres'_ures
in each specimen
shouldbe
monitored
and controlled.
at the. love.Is required
by the particular
test.
.This can]0e
accomplished
by periodic
manual
venting
of excess
pressure
buildups
due to, heating
in the specimen
caused
by the flexure
cycles.
stress
levels
to establish
the general
S-N curve.
From
the curve
the endurance
limit
will be detcrmined.
The remaining
tests
will
be used to establish
and/or
verify
the endurance
limit.
All tests
will utilize
the rotary
flexure
test method
outlined
in the precedings
steps.
............................
-
I
'
i+,
164
I
I
I
............................
ullt
i
t,/
i
"
o
_'i
gg
a
\',
I--(
\ , !_:-.:.Q .::. ] :.;.:
_
_
.
. +.,r,
I-f2
t.)
.--- ,:
.
....
_ ,,.
J II \_=-=:-::::,1.-I
........................
.+=
H. ,,c+
I_..Ig-,l,ii,zJ
'
I._
•
__
_,v
x_,
i
,
:
-'
!.
_>+
_
__
++lJ
\,.
I c_.+10+'
r_,
\ +,,+,
,..i I_,
_,
II +-"-.-'--x
,,,<,2+
g,7,: • _
\
L_:.,,_J
..
:;
::
>.,!P.
II
\ "-,'N,k,
tj<_
II
"--t- r--_"
:<_'_+' -A-U
[] L''-","
_'
__
............
o -
M.-'_L-7..
+_"
I\
oj+,roo_:qts_+S-_i;
r
it
]
i
!
I ........
VIII.
If
Tl_e
unless
fifteen
'I'I,_S']" SIqQtIP;NCI,.;
test
consideration
proceduros
is given
AND
could
QtJANTYI'II',,_
......
i'equire.a__large
to the
maximum
data.
The
quax!tity
utilization
of fittings
of each
re,st
speci-
m_
..
men
for
;_
Figure
3 will
,:
roman
numeral
mens
"_
generation
still
"
especially
tests,
since
the
be
referred
results
and
The
with
the
from
previous
burst
same
more
test{s).
data
is not
Fatigue
the
past
and
the
critical
by noting
number
proof
degree
the
the
of specimore
and/or
burst
of degradation
has
more.
tests
in
generate
experience
neces.,.arily
useful
reduce
leakage,
indicate
shown
discussion
of specimens,
gaseous
Flexure
Rotary
to
How.e.ver,
important,
-
tests
Cl_art
following
number
of the
these
test
tl_e
Sequence
It is possible
in arrangement
by the
proof
number.
or
Test
to throughout
group
further
data;
induced
of usable
proven
*hat
important.
are
considered
to be:
.,
(Rotary
Flexure)
Impulse
- - Vibration
These
.
i
critical
....................................................................
Proof/Burst
are
listed
the tests,
the
in order
more
of criticality
difficult
they
and
are
for
some
reason
the
more
to conduct.
7
j
-.!
The
tests
test
in groups
Sequence
leakage
used
i,_,
taken
._
tieipants,
with
with
initial
wherever
reference
in that
was
velification
it was
to the
it was
developed.by
test
assumed
most
first
checks
placing
or proof
advantageous.
Specimens
that
every
each
o£the
pressure
A negati_.e
received
from
fitting
received
the
required
or gaseous
approach
various
would-be
was
parbad
................
I
,r,d
p,,,,ttd
J ;_ d It;
(,,r
lh(,
i_,_',,, - ;,i/
pr/,/(
1;._
_,P_,,
t/,_',
_,., c_ !.t [t,¢_
p,r_ir,,I,,r
':.,
-; .s..",_,'.',,),'!',
.;r,,I/t.r
._I"/
_:,"r. ,r.?.,_...-._':.
r t,_:
_r._:r,_'_.
.n
%': ;
! '_':?,_"
te_. _ -;_._.I
•
;a_.P_
;tr_,,4_',,
'l h_, t,r_×_
,;_r.;,
_!J,, :; f(,
d_,fr, rrr,ir)t,
vJhi,.r_
_._..',;f;_, _.r,_!r,[
.k,c- r:r_rn'.-_[.,-,ed
I::o
i-
i
t.I I,lle,rt,it
rl,_il;,)n[._;
•_
;, i_. t it},q.I.
,Iq. ttFi_,ltli,l_,-q,I
I,i
"
r
_,;,,,,
1,1:,1,1,
t,,
,,r,. tbrz
all,
pr',,l_r,)rr_,
,I,,_,.
vi,l,I
l_,r_for_,tn;_tg:]'.l,
,i,,r;_t:,.,I
1_, ,1";,;
it
thq_
t_,r
,;pt_t.[rra:n
;_nt)th(,r
tt.l_t
too
to
the
I}11 ',LI',I__I_J-_,
;,q
,li,I
Iht'r_;_l
,_;]_ucl,
and
point
b_.t:ause
,I:,_,,:,I_,,
i,_:,,_IHiI',_,,w_,in_ I,,i', 'I',',';I
n,,l_I)_;for ;_ss(_mb]y
"_til_10_,,,'lit
rnany..of
strt.
the
torque
ss
the
that
tests.
it
would
degree
and
corrosion.
of
misOne
_:
i
I_
I
,
1_
TAB
"
!'i
--
RECOMMENDED
MINIMUM
PER
TYPE
LE
TEST.
SPECIMENS.
AND GROUP:',-"
REQUIRED
....
Quantity
Pe rmanent
:Sepa
table
-,
Group
I
0
Z-
i
Group
II
2
2
..
Group
Ill
6
6
-.
Group
IV
6
6
Group
V
6
.
Group
VI
4
"
Group
VII
0
Group
VIII
3
_.
G roup
IX
3
"°
Group
X
0
..
Group
XI
1
_
Group
Xll
......
i
2
Quantity
.,i
,.
,
...
.......
6
4
2
..................
3
m .
3
....
2
1
__9.0
i
""
Total
31
39
I
I
Ii
I
i
I
:::Re_fer.±o
"
Test
Sequence
Chart
for
Group
Numbdrs
..-
i
I
169
rather
than
"t
cation
of.le.akage,.
proof
t
a third
specimen,
_ressure-is
recommer_ded
If the
is
re.s.ults,
are
recommended
for
positive
verifi-
and
negali_z.e,
.......
_tt.
Group
II:
This
-.
k,
t..
tt_e combined.test
a new specimen.
mended.
If.the
third
specimen
....
i'i
is
Group
III
Group
Group
IV
V
""
These
...
three
of proof
groups
of specimens
at
and. t_emperature.
minimum
establish
.
involve
the
VI:
This
rotary
group
varying
Since
the
Group
VII:
This
tests
with
•
number
the
Group
to be
positive
i
a minimum,
;
maximum
or
of data
scatter
;.'
-¢,
at*
]
l
IX:
This
should
Due
testing
test,
is
as
1
be used
to
to the high
i
which
but with fewer
recommended
is
also
con-
variables.
with the
six__.:.
assembly
to separable
added
if the
This
tests.
Group
.... i
torque
and
misalignment
and a minimum
of tw__oospecimens
are
recommended
an optimum
number
of three.
These
tests
are
•
:
VIII:
of pressure
involve
a rather
group
level.
impulse
selected
involves
applicable
should
be
out
combinations
S-N curves
testing
nmvlber
oL.specimens
in this
program,
per
group
were
used.
A minimum
for endurance
limit
runout
to-10 7 is
involves
group
on.
per point,
a minimum
of thre___._e
is recommended.
Therefore,
a-
sidered
to be a fatigue
type
A minimum
of four
specimens
optimum
pressure
flexure/fatigue
of nin____especimens
pe.r
a reasonable
confidence
cost
of the large
only six specimens
of two specimens
desired.
Group
burst
A minimum
of tw___ospecimens
is recomresults
are botlipositive
and_negative,
a
is .recommended.
broad
scatter
of data
specimens
per point
"
and
group
Due
group
and
involves
to the
optimum
from
only.
two
on
A third
specimens
specimen-turn
negative.
thermal
variables
of three-
involves
fittings
results
shock
and
associated
specimens-is
stress-corrosion
with these-tests,
recommended.
number
is dependent
the minimum
numbe#
the
axial
pull
and
tube
•
The
on
.......
the
degree
]
restraint
tests
wherein
the tube
restraint
re-.st is applicable
to
separable
fittings
only.
Axial
pull test
is applicable
to
both pez'manent
and separable
type
fittings.
A minimuraa
of tw___o specimens
is reconamended
for those
tests.
]
,!
ii
I
.........
Grou
P X:
This
group.il_volves
the vibration
tcsl.ing
of.__0parable
fittings
only.
A a'ninimum
of-tWo__2 specimens
is rc:cmn-
g
mended.
specimen
Groul_
Ii
XI:
Ho.wever,.if,
should
be
This
group.involw.,s
o£ on___Se
specimen
Group
XII:
This
test
should
additional
The
to permit
specimens
adequate
'-_
proc.edures,
-
tl::.ese, factors
...
test
analysis
and
equipment
have
tion.and/or
fittings
4*
size
]
size
of one
requires
a similar
only.
should
also
on
size
The
and
one
a similar
the
quantity
type
by
Details
required.
relaxation
(creep).
only. and a.minimum
as
applicable
for
as
are
A change
detail
test
failure
methods,
specimens
fittings
noted
in tubing
since
]
analysis,
to one-tube/fitting
separable
of tubi3lg
sufficient-design
the
well
is recom_
of assembly
accompany
tests
are
quantity.
]For
accompanied
failures.
discussed
quantity.
(a)
i
be
be
required,.
A third.specimen
are positive
and negative.
of any
a bearing
The...quantities
"_
should
under .n,,d.a.n_i,_in,u,n
extreme
Specimens
group
involves
the structural.load
applicable
to separable
fittings
oftw_.._po Specimens
is
mended
if the results
_,
onethefails,
t_ma_d.a third.-
tl_e.fir0..restraint_test
_houldbe
used.
Only
circumstances
1
one.passes
and
utilized
to esl.ablish
configura-
and
in Table
for
2.
pe_rmanent
A change
specifications
1
in
requires
example:
A
fitting
permanent
(union)
design
Requires
31 x (1) = 31 specimens
%rich
plans
(minirnum)
to test
one
sizet
If
I.
I
(b)
two types
31 x 2 e 62
of tubing
specimens
(c)
If four
(d)
If item
(a) is a separable
test
one size:
are
to be
with
fittings
two
present a typical cross-section
62x 4 =.,248 sp_._imens
Requires
sizes
of
39 x (1)
= 39
fitking
specimens
qualified
with
the
fittings:
types
of tubing
are selected
of fittings to be produced[
(union)
design
with
to
p.lans
to
(minimum)
I
!
,
I
L
L
I
I,
171
I, .......
(o)
If item
(b) is a separable
fit-ring
tc_ be qualified
of tul)h_g,
the test
specimens
rcqu. ired
are:
"]
_t
39 x 2 z 2.K-Spqcimens.
(f)
size S.with.tw.o
type.s
the total
cross-section
78 x 4 -- 312
,,
If both
'
various
quantities
and
would
of tubing
as
of fittings
specimens
permanent
be
!
t:
"
a + d = 70 specimens
b + e = 140 specimens
I
"'
c + f -_ 560
twt_ type,_
(minimum)
If itch% (e) is a sepal'able- fitting andit
]
,_
with
is des.ired to,tt'_sI
four
repre_e,%tatlve
to be produced:
sample.s
of
(nninimurn)
Separable
fittings
arc
to be
qualified,
additive:
then
................................
(minimum)
(minimum)
Specimens
(mininaum)
f
'<
-
As
...
parameters
t
can
be
seen,
the
involved
quantity
are
of fittings
included
the
increases
to properly
significantly
qualify
a new
when..a.
design.
1
I
17?.
i
VIii.
,|;
a particulax
L
i
During
]
related
thc....r¢,view
to;st,
to the
test
_'*'
pertained
I
"_
Therefore,
t
_..
used
"
Sequences
!
more
meaningful
tests
,..
where
possible,
thereby
primarily-to
along
The
...
i
"'
other.
with
and
InduStry
applicability
1
I
use
ARP
1185
each
4,000
fftting
the
currently
one they
and ARP
testing
in use
in the
fits
1055
specifications,
their
(being
in close
Devel0pment
One
but these
............
of Test
on the._
equipment
of the
and
its
greatest
containing
many
of tubing/fitting
and a test
or product-to
revised)
Test
to produce
was.developed
overlapping
test
and
is interdependent
testing
were ......
data,
documents,
are
RFQ
in order
requirement.
for
.....
equipment/procedures
Specimens,
many
documents
feel
developed
or
systems.
Procedures
standard
each
type
as. to the._.r "current'-'
psi
was
Test
procedure
because
inadequate
noted
repeatable
test
canvassed
of. these
using
of the Test
industry
were
in more
for
also
the
tube
results
was
(proposed)
a.nd detailed
and test
Sequences,
Many
only
Equipment
Design
requirements,
need
Test
noted
documents
use.wkth
or.indirecl:ly)
obsolete,
pressure
and the SwRI
for
(directay
eki.her
operating
the
only
Test
voi.cedhy
assemblies.
-e
the
were
lower
resulting
t_0.t.he new
problems
general
the
......
]i,_tod
clocunwnls
the.specifkcatixms
program,
reference
with
refer.cnce
that
for
this
equipment
Procedures
4 ,
for
EQIIIPMENT
equipment
tests
throughout
coordination
''
noted
required
as a guide
O'f many
itwaS
i
""
'I'ES']'
are.the
too
must
facility
the best
t_o
have
most
_
advantage.
direct
changes
:_
i.
made
|
|
to meet
the up-to-date
industryr__quircments,
The
equipment
;'
"
'i
i
i
i
i
1 73 .................................
de,_ignt,'d
I
by
as
an-attachment
ing
comments
" I
are
larger
I,
A calibrated
I
or
The
if a mass
'
l
Tests
I
wrench
that
p_royen
produce
with
oil,as
type
that
operations
-!
leakage
rather
than
:
in a gaseous
!
I
The
entire
"test"
I
I
!
desire
is
for
that,
no
test
requires
and/or
of proof
pressure.
is a Small
chamber
fitting
gaseous
or
as
using
were
other
on the
leakage
a verification
as
a Veet,
lteeco
operators
test
(G-LV):::
...........................................
._
t
i
']
I
to gaseous
factor
surround
the
...........
test
calibration.
ability
is to be
i
of the
changed
in the
o 90A.
pressure
some
to
seal.
leak
impor.tant
chamber
be used
threads
a faulty
a proof
a test
anchored.
calibrator"
the
reason,
The
also
depends
such
this
isolation
mu_t
test
The
after
attached
loads.
leak-rate
compared.to
For
or
equip-
-121 .and
on the
reading
test,
media.
the
of torque
exists
used,
when
test
fixture
for
range
a "master
leakage,
fellies\r-
if properly
lubrication
to an erroneous
gaseous
holding
satisfactory
lead
The
their
required
each
¢:_frlrawing._
'.
to fabricale
valves
vise
ft_rm
l_rncedur0:_
a s_itable
lea,k__detectoris
leakage
on a new
3
jaw
results
test
calibration.
(GI,T):::
:::SeeFigure
use
This
gaseous
a repeatable
the
Test
torque
rnquired
before
leakage
assembly.
requires
pressurizing
type
fitting
will
leakage
"check"
I
test
high
is
superior
the
who
to insure
gaseous
have
those
smooth
spectrometer
detector,
test
of the
ill lhe
discussed
Io.aid
A-large
surfaces
I
p reviousJy
be exercised
mating
program.is.presented
assembly
torque
must
test:
made
because
fittingS.
Gate
this
relbeated
base
I
for
to tlle
Tlie
to a solid
'
Swl{I
used
check
to obtain
as
a
before
t
t
1
1
t!
r
1i .....................
1
1
¸
I--]
I
17.d .........................
I.
and
after
othcr..tests
;is a result
_ff the,
leakage"
is defined
I_
t.
i
,
................
The
III
combined
check
before
and
during
/
'
,,,
Burst
"
test
For
_ate
hqth
Test
proof
after
and
burst
test
as
pressure
test
botll
on
or
to determine
as
test
on a new
a verificalion
deterioration
Test)
burst
fitting
tosts,
"no
Co: less.
if any
Leakage
a new
assen_bly
a specific
test)
is a destructive
Test
a specific
fitting/tuhing
1he purpos0,
of
3 tlmse
cff. l.0
X 10"
scc/s.ec
(See Gaseous
PreSsure
Pressure
in the
is appl_ied
a specific
the test.
Burst
The
appliedas
!!
,_pe.c_fi.c tent.
as.a
leM_age
Pressure
(see
!]
deterioration
Proof
fitting
resulted
J_
to detect
pressure
test
(See.._.Cg.mbined
Test) or as a verification final check
Proof
and
following a designated
i
to determine
manner,
-,
burst
-
The
the
test
--
be
degree
deterioration
of damage_
is a destructive
same
test
leakage,
2.
if .any
combined
and
with
from
each
terminal
chamber,
proof
resulted
bur.st
the
tests.
test
be
it must
the
the
can
designed,
Also,
impulse
test
test,
if properly
from
test.
In this
assessed.
Since
the
..........
be programmed.accordingly.
can
accommodate
chamber
requirements
as
the
design
and
shown
in the
use
gaseous
may
test
T
"t
procedures.
..
The
""
to
_
the
i
_"
ImpulSe
considerable
input
Test
machine
discussion
pressure
rise
MII,-F-18280C,
the
produces
vertical
a near
(Ref..MIL-F-18280C)
lately
time
or
pressure
due
rate.
rise
line
to the
with
_hape
According
rate
a sharp
should
has
of the
to the
be
impulse
subjected
curve
requirements
180,000
drop-off.
been
This
psi/see
is also
versus
of
which
discussed
t
-,w
:,i
in the
,
section
on
Test
Procedures.
SwRIp,'efors
the
lower
rise
rate
with
a
_M
!
|
]on_<,r
dwo.ll time
I
A.qs_m_t)_ ac-cumulator,
ea_iLyp.r()ducc_.the
I
peal< pulse
i
men,
slowe.r
and
o._cilloscOpe
]i
i.nt_nsifio,
more
pulse
photographic
The
Rotary
the proposed
ARP
the majority
of specimens
I_
Therefore,
when
_
the headstockto-thc
r,
valve
ri,_e rate
energy
at.peak
trace
from
zero.
some
timer
into
by using
the pressure
apparatus
1185 imposes
aJ_d cyclic
pressure
can be obtained
Test
dr()p-_)ff,
t() insur<. _ a lollger
trace
Flexure
the
f()llc:)wod I)y a ¢cmtr_l_:d
four-way
pressure
therefore
_l?he pressure
t_
IiF
:_..
at the l)eal_-l)rCs_u_o
problems
tl_e test
a visicorder
or separable)
reference.bar
is used
test
are
or an
output
......
with
specimen_s
because
not perfectly
to set.the
.....
_peci-
in accordance
with
(p.ermanent
_.:,'_n
duration
transducer
fabricated
_.
zero
straight
...........
axis..from
p,,
[
with
the
same
accuracy.
on both
a perfectly
If the
•
!.
*"
zero
i
,.
headstock
eccentricheadstock;
is displaced
of the eccentric
then
""
fabricating
t
Strain
tailstock,
the
problem
area
strain
test
is the
orbital
gages
specimens
true
base
(located
assembly
on the
with
for load difference
.... Caution
a-large
self,aligning
linearity
bearing
zero
inshoulxL.be
stress
eccentric
out
adjusted
to
displacement
exercisedwhen inthe
exists,
in the tube
in the
check
tailst0ckiS
90 ° apart)
to insure
should
axis.
Another
headstock..-who:ein
'W l
it is difficult
'_
and last
the
]
}
I
to locate,
more
than
located
one-half
anchored
in the
be designed
one
assembly
corrlplete
with
a heavy-duty
highest
size
run.
Fittings
intact
and the bosses
solidly.to
_-otreS$t,d
to encompass
small
only
such
as unions
the test
The
that
The
strain
if possible
do.the
be tested
tested
environmental
fitting
will
should
should-toe
the tailstock.
area.
bearing
job
with
as bosses
ga.ges
should
chami)er
should
and
the
keep
be
1
_::_
176
I.
remainder
I.
A_larger
!
of the
.test
apparatus
self-aligning
The
fittings
bearing
Assembly
on!y,
can
in the
can
Torque
be
be
and
designed
room
temperature
used
if size
serve
a dual
purpose
the
misaligjlment
the
fixture.,
and
since
I
2 .
]
degree
base
The
measured,
because
,1
torque
]
instrunlentation
the
test.
-'
The
_
tests
one
determines
can
predominant
fitting.
An
_md Titanium
loads
required
factor
to
internal
reach
because
for the
The
the
tensile
that
must
be
and
ap!!lied
on
the
as
torque
identical,,
in the
same
setup
in the
tensile
prohlem
of gripping
forces
great
were
enouch
helped
with
to
well
as
therefore
test
tube
fail
the_problem
solve
machine.
_4thout
the
tube
or
on the
the
Zl-6-9
to collapse
at the higher
tapered
grips
and.the,
sandblasted
applied
the
assembly
test.
are
are
of
to a solid
to the
orientation
the tube wall
had a tendency
21,6-=9
and Titanium.
The
loads
anchored
fixture
both
Side where
in one-half
Pull
sleeve
be
dimensions
Axi._l
tens',le
grips
longer
be marked
securely
to gooddata
is the
expanding
to fit into
coefficient.
and
.......
to
basic
be
installation
is the.key
accomplished
also
values
gage
Restraint
be
in order
end
strain
tests
needs
axis
the
separable
scale
must
torque
readout
Tube
offset
fixture
high
Proper
slippage
tube
This
of the
The
i
misalignment
increments.
in both
length of the test specimenonthe
is to be
for
pivot
should
!
importance.
utilized
the
restraining
The
of no
Fixture
needs
one end of the specimen
at the fitting_oint.
is
Misalignment
to
environment.
to obtain
a higher
a 2000,000-1b
friction
BLH
tensile
1
!
test
machine.
and
integrity
The
of.the
objective
of this
tubing/fitting/joint,
test
is to prove
the
tensile
strength
...........
...............
,
I
I.
]77
Tlle
_"-'
I
Shock
pe. ratures
to induce
thermal
and
shock
are
for the air shock
I.
temperature
:
is
b!
'_[_"
liquid
I
, |
!'
Thermal
I
used
I
to obtain
the
dry
ice
are
the
high
temperature
liquids
I
I
I
!
I
the
test.
procedures,
while
dipping
and
chamber
ventilating
I
strain.
The
I
I
I
equired
study._
Extreme
caution
to the
raises
Test
are
and
changes
burner
drying
fixture
iS
Strain
operation
from
was
of the
ARP
1055
usedwith
and
appara.tt!s
cold
chamber
hot
are
unit.
oil
is used
held..rigid
lowers
for
is depicted
with
to permit
in
induced
.......
alternately
A reserve
thc. reby
to preload
be
Fire
which
its
i
in handling
apparatus
Circulating
process
can
!
Alcohol
salt
water
of tl,,_solution a_ it evaporates
designed
gages
special
be used
temperatures.
replen!sh_ent
up the
alternately
specimen.
Corrosion
prescribed
shock
chamber
and
must
test
water
of_.sa.lt
te.m___
air
a comhination
liquid
specimens
and
cold
oven
use
temperature
the
The
design
A propane
than
wherein
stress.
manor
low
A separate
Stress
sp_eed
Both
No
at the elevated temperatures.
to
and
minimum
filling of the tube with liquid at both
rather
press.u.re
at the
ttnd
specimen.
a hot
tests.
shock
the
to per_t
Stack.
a predetermined
test
type
pan
drying
while operating
I
I
the
tank is required
to the.
maximum
Immersior;
bending
shock
applying
maximum
a minimum.pressure.
liquid.
and
The
two
for
in the
by alternately
under
used
the
by. utilizing
followed
these
and
both
I
for
utilizes
sho.ck
imposed
extremes
required
q'cst
in_talled
Resistant
-_s now
standa1'd
fans were
necessitating
the
a
specimens
to
to measure
Test
the
Apparatus
undergoing
nozzle
added
a revision
and
did
not
..................
!1
L__'
m
require
I
the
I;
a special nozzle.
various
with
Therefore,
a heat
with
in order
a.cross
11
is
"creep
fluid
specimen
temperature
camera
The
test"
and
that
added
just
before
in the
the
fluid
during
these
a complete
set
during
tests
the
of remote
Relaxation
only to
Test
is
separable
tuhes
are
conditioned
I
monitored
periodically
by temperature
and/or
I
fixture
I
a specimen
The
I
!
Section
permit
514,
in the
failure.
Vibration
using
chamber
to determine
the
load
or fittJ.ng/jo,nt
pressurization
Test
a standard
of the
is
set
heat
permit
the
a closed
rise
down-
period_
circuit
The
test
setup
cell.
commonly
fittings.
a'i- 450°2
and
the
amount
of load
r Maxation.
fitting._
to
.................
TV
referred
The test
lO0 psi
conducted
in accordance
vibration
exciter.
The
with
to as a
apparatus
fixture that is capable of holding the test specimen
on one end and preloaxlil_g(tension) mechanism
on the other e_d.
The initial strain is set
the
to be
The
will
controls.
test
specimen
l
after
chamber
test
consists
-
of an environmental
the
of the
five-minute..test
include
a fire-proof/explosion-proOf
Structural
Load
and is applicable
ahead
of Z00-Z30°F.
flame
...........................................
prol)h_m.
just
reaches
is
at tl_c elevated
largest
System
Z, 000°F
climbing
operate
the
temperature
in the
of this test apparatus
cannot
presenting
was
while
used
pump
inlet
to.keep
precautions
system
psi
exchanger
in design
1'
I
'
test
containedin
i1
4,000
the
problem
the
a heate.r.installed
the
monitor
..................
the
to obtain
...............................
stream
Safety
I
throughout
temperature
pump
|
seals
The
strain
an internal
gages
are
relaxation
caused
The chamber
and
in order
with
method
to detect
MII_-STD-81nt3,
of mountinc
•
I
the test
I
to another.
-
I
The
,
i,
Li
specimen
On the..sht_ke
There
are
Cantile_ve r
Two-point
major'portion
t.wo basic
cantilever method,
_'J
,b,
bos_ses
is a. point
methods
suspension
of industry
iJ -
table
(each
differs
of mounting
fl'om
the
ono
facility
specimen:
end)
conducts
and this same
that
vibration
method
tests
on fittings
using
the
is use.d.in..£his
series of tests on
"
_,
only,
The Institute
feels
that
the
cantilever
type
fittings
test
method
is more
t
.
:
ap_plicahle
"*'
sion
to the boss
method
more
or terminating
representative
of in-line
type
and the two-point
fittings
.suspen-
in an aircraft,
such
if .
as unions,
.•
use
of the
"*
fixture
could
.
tees,
elbows
cantilever
that
be designed
method
permits
be a dun.my
or crosses.
two
used
may
require
specimens
for
as lightweight
If the__shake
has
the fabrication
placed
balance.o_ly.
aspossible
table
opposite
each
capacity,
of a balanced
other.
The preSsuri_zation
to prevent
a small
overloading
One
sy.stem
the
type
spe...cimcn
should
shaker
4_
capacity.
system,
....
Q*
1
|
|
I
The unions
with
the-cantilever
rigid
1.ard
method
in this
motmts
program
were
throughout.
on a single
mot, nt.
tested
The
using
bosses
the two_poin_port
were
tested
using
table
..............
I
The
"
]
serve
test
groups
listed
configurm£ion
tubing,
SPECIMEN
in_the
0f test
DESIGN
test
for
reason
for
The-primary
"°
length of tubing requiredfor
o.
designed
4,
design,
and the .specimen
provides
design
ever,
_
some
The
bur.st pressuke
soacing
length
tricity available
I
men
notes
i
Figure
group
many
in each
Now
length
three
it is
could
types
of the
in..order
rotary
different
designs
test versus
it is obvious
review
i
.
the minimum
is
that by judicious
could possibly
of the test sequence
suffice
chart
related to test specimen
paragraphs.
for the repeated assembly
test, Howa gaseous leakage test, proof pressure
be of such dimensions-to-p::.!_.m...{,!_
...............
flexurt.,/fatigue
headstock.and
that
the
the
tailstock
stock.
bc varied
with
of test
specimen
3 to designate
to con-
that all of.theequipment
of the problen_s
test must
in the head
suggested
A
a different
of the req1,i_gredtest chambers.
of the
I
and
tubing.
Any..,size fitting,couldbeused
all fittings that are to receive
.].
|
some
in the following
installation in each
•
test.
each
the
tests completed,
typical examples
as discussed
test and/or
to the
each
r(_quire
two or three different sizes of test specimens
for all tests by wasting
-"
sequence
specimen
relates to the type of data to be retrieved
i
i
[
or
_'_"'
II.SI
,_
li
')
length
twelve
IX.
difference
specimens
well
as
If the spacing
diameter,
setups
dra-wings
as
test
for
of ARP
between
Figure
the
1185
a tea{
"he
degree
can be varied,
3 of Droposed
rotary
flexure
he
for
!
is _roportional
changed
"i.a-line
(.,., *ccenthe speci-
ARP
1185
machine
as
noted
fittings:.;
in
......................................
.
i
i
_'
i
I
!
!,
1
_
181
I
an¢l
"l_,rminal
I
contained
or
in the
Im applicable
the
_.
fitting:is
for
I-t0wever,
questioning
known
that
tbe..MS
will
fail
first.
t)ermanent
at a rigid
method
Figure
brass-type
attachment,
.Thcr_,
MS
fitting
Z of ARP
fittings
arc..no
is used
is located
the
at the
at
the
tu_e
to
1185
which
the
more
highest
realistic
simulate
it is already
being
tes.ted.
how
point,
method
an
to
are
is_ojpen_
stress
o,'
clamp
__
a
block
i
installation
separable
set
it
of testing
acceotable
a fixed-cnd
dr._.w.j.ngs._...indicating
3,
is
end,
a' clamp
illustrates
requires
the
fit--
brazed,
joints
fixed-end
fittings
,)f
the
welded,
Figure
to hold
would
nnc-half
permanent
1.185,
to the.advance
to use
clampino
in ARP
is
1185
testing
it bc
for
of attachment
inferior
MS fitting
by
point.
testing
is
SwRIprefers
fitting
interface
the
if the
the
the
drawings..shown
fitting
since
only
only
between
whether
lilting
in ARP
because
be made
interface,
the
c_tltil'_'
1}1o
noted
fill.ings
must
the
because
Therefore,
for
then
If
YllalltittP
of testing
in-llne
testing
type.
this
method
Distinction
or
tests,
applicable.
_.
test.
shrink
undergoing
the
In
syjnm0.trical
in the
cr
fittir_gs",
wher0as
assembly
sWaged,,
!
test•
lype
only:to
ring/tubing
i
boss
up
fittine
separable
joints
t
i,
for
the
rotary
-,
flexure
A separable
unless
,i
there
r_rottuction
is
or
..
i
I
........
indicated
by
fitting,
reason
for
maintenance
test
a separable
temple-re
union
I
test
the
in ARP
unlessAt
a separable
reasons.
[1.85.
is a b_x)ss,
joint
is normally
ira a span
Thprefore,
fittin_
in its entirety
by clamping,
with all interfaces
and tubing
each
SwRI
design,
Thp
length
of the
used
or
long
run
it would
be
more
at
a junction
for
logical
the.....t_.b.t:_..and..testin_'
side,
hy supnortinlz
r_i_('(imen
can
assembly,
be
varied
•
the
as
to
f
18Z
!
|
as
requirod
i
to ()l)tain
to
the
of the
design
Proof
because
the
providing
at the
test
strain
BurSt
chamber
suffici<,nl
gage
Specimen
Test,
the-test
and/or
and
for
specimens
Impuls<,
Test
manifold
design
would
is
available,
lc)cation,.
the
Pressure
dis01ac,'menl
Test
or
Gaseous
is used
nece._sarily
parallels
be
Leakage
for
the
that
all
same
four
Test
tests.
lenRth
design.
length
as
Assembly
(Sther
Misalignment
frame
lion
of the
Same
The
",
str.ess
Pressure
Therefore,
i1
equipment
r_:quired
The
..
fit the
selected
Test
spacing
rather
'
Torque
half
02 the
air_c_r__ft
be
complete.kq!y
Stress
Misalignment
specimens
in an
than
The
and
except
tube
that
assembly
and
permi.t
rigid
Corrosion
Test
and
could
it was
should
the
tube
be
the
same
determined
approach
a ._mall
that
the
the
average
degree
of deflec-
.....
.....
Thermal
Shock
test
spe_cimen
design
p_eload's
the
once
.................
t
_
_'"
tm
1
again
is a function
Also,
the_ larger
imme.sible
This
with
sizes
other
The
both
Once
again
specimen
Pull
The
the
the
can
Tube
load
tensile
soeeim()n
larger
and
the
an
be
to develop
and
tests
that
Therefore,
in order,
both
design
Specimen,
test
Axial
for
fixture
system.
tests.
machine
]
the
tank
selected.
for
of the
Test
applied
is not
fixture
by
of end
critical
and
size
s;ze
a standard
set
and
optimun_
of any
sa,_e
length
the
Restraint
is
holds
that
set
larger
specimen
could
of test
specimen
the
the
be
and
are
could
the
design
specimens.
is loaded
in tensiontest
load
used
for
b¢_ made
both
to
sizes
as
long
as
it will
fit
tensile
t
!
ma c}_ino
lha_
is
tests.
match
i
other
_as
compatible
BIA-_ tensile
grips
assembly,
avai]ah]o.
i
I
183
I
The
I
fittings
be
!!
due
used,
The
of the
Only and
laowever,
I.
lengtl_
was
con_puted
to the
range
're st specimens-
to furnish_the
is...applic,Male
optimum
several
becomes
excessive
in the
specified he rein furnished
excellent
the
"g"
results are desired
of frequencies
loading
these
lengths
should
-to s,.,parabto
vibration
involved,
except
lengths
Vibration
spectrum;
lengths
lor_ger
could
specimens.
data and if correlatahle
be used.
Also,
the_type of_holding
t
t-
fixture
and
]
overall
length
.,
test
I'
i
i
!,
pressurization
should•
apparatus
ofthe
be
The
system
spe..cimen,
consulted
Fire
which
for
the
The
before
facility
designing
Resistance
Test
has
requirements
certain
shaker
table
that
the
specimen
test
Setup
accomplishes
affect
the
the
vibration
.,
q
specimen.
is designed
that
will
to fit the
necessitates
fire
a long
te.st
specimen
,:
O-_"
!
i
,
as
'_'
that
can
be
the
seen
length
The
I
separable
The fixture
mental
]
of this
of test
method-of
I
loads
and the
high.pressure.__Fer
I
by
!
procedure
schematic
specimen
Load
would
Relaxation
po sitions,
would
match
Test
and is designed
can be designed
drawings.
i
]
!
i
is applicable
the fixture
specimen
dictate
likely
others.
specimen
to meet
to any
p robably
any
It is not
the
to
dimensions.
size
desired,
size
of the
but
en_dron-
chamber.
I
I.
test
test
fit.tings
only
dimensions
Tv.'o
using
the
Structural
the..numhcr
i
from
critical
clamping
type
tapered-jaw
items
and
common
holding
or
of end-fittings
tensile
tests,
blocks
to
with
many
of.the
supporting
the
to be u'tilized
_he _uhing
an
expanding
test
specimens
specimens
for
are
the
longitudinal
for the tests
that
require
can-be
most
efficiently
clamp,-d
interna-1
plug
to keep
the
tube
.........
i,
i:
'i
1...............
1........
I1
t
I
,
t
i
walls
I
..
-
frnn_
ments
colla)>sit_g.
will
I
the
il
of the
same
test
test
]
pressure
]
type
"_'
inlet
portions
will
be
as
by
using
HMS
fittings
._
presents
1
1
1
I
!
usually
a cap
on
For
installed.
than
Swagelok
end
or
rotary
the
fittings
on the
The
market
and
the
critical
tests
21-6-9
usually
the
304
and
ends
tubing
for
special
fittings
and
is burst
swage
Suffice
above,
end
f<_r
test
have
results
1/8Htube
Titanium
the
if
standard
Satisfactory
the
on
critical
noted
words,
fitting.
on
most
will
costly
to be adaptable
Several
the
test
and
need
flexure.
In other
rath¢,r
a specimen
plug.
c_m, cl.anlp
were
using
for
to
obtained
Harrison
the
higher
specimens.
for
summary
fittings
of-tc.s/,-specimcn
D rogram
3 presents
permanent
the
seDarabIe
this
fittings
n_it;ali_tn-
so that
becomes
these
available
better)
fittings
as
and
to be
bushings
middle
as
tests.
:_dapter
of card
impulse
throughout
Table
lengths
of the
(or
the
by
are
have
good
Dressure
_'
be used
ass(:nhnhly.torclu(,-and
in the
Also,
or
fittings
utili_,,e
proble.m
is used
specimen.
end
fittings
I "
fitting
t'¢>ta_:y I'h,×ure,
can
The
followed
some
'2
I
tests
suffice.
a pressure
1
Tile
and-vibration
block
r,
i_
-i
as
.the
summary
of test
specimen
assembl_,
fittings
as
in this
program.
Table
of test
specimen
used
in this
si.zes-anaAengths
............
used
assembly
program.
for
boss
Table
type
sizes
and
.4 r_resents
test
sizes
and
3 also
lengths
for
the
sum_nary
spccimens.as..used
in
I
'I'AI_ I,I,_ 3
TYPE
I .....................................................
TY DiGA 1_,SIZHS
FITTING
TIqST
SPEC_MI_NS
FOR. P.I.: RM
AN F,N
T.. AND _ilii:l_Al_AI31,1!:
. _- Union
-
I
.
Per manent
Dimensions
(in.)
_
Test
Secluence
A
N o.
Req'd.
B
Assy's.
Se
par
Dimensions
A
N o°
able
(in.)
Req'd.
B
AgSy's.
-6 Size:
,.
,,
_:
.....
-I
"
,,....
,'.
:
_"
,
-',
14-3/4
18-1/4
18- i/2
1Z-.,1/4
23-1/4
ii
7-3/8
5-3../4
5- i/2
4-1/2
11/_/8
5-I/-2
8
18
2
................
3
2
2
xI
xn
17-I/4
14-1/4
8-5/8
7.._/8
2
z
14-3/4
18-1/4
7-3/8
5-3/4
6
18
12-1/4
...................
23-1/4
4-1/2
11-5/8
3
2
17-i/4
8-5/8
2
i
- 10 Size :
I. II. vI
III. IV. V.
VII
VIII
IX
X
Xl
XlI .................................
15
18-3/4
19- I/4
12-1/2
24
13
17-I/2
15
7-112
7-1/2
5-3/4
4-i/2
12
6-I/2
8-3/4
7- 1/2
-16 Size:
I. II. VI
15
7-1/2
Ill.
VII IV
VIII
18-3/4
19-3,/4
12- 3/4,
9-1/2
5-3/4
4-.1/2
IX.
X
XI
24-1/2
15
18- 1/2
121/.4
7-1/2
9- 1/4
22
2
XLL_
15-i/2
7-3/4
2
8
18
2
3
2
Z
2
2
15
18-3/4
7-112
7-1/2
12- I/2
24
4- I/2
12
17-i/2
8-3/,_
2
6
18.
"
3
2
15
7-1/2
6
_
]
{
'
l
l:
12-3/4
............................
8
1
...............
Z
/'
18-3/4
"
182
3
1
-
"
V
'
i -
8
"
t
"*
'
I
I, II, VI
III, IV. V
Vll
VIII
IX
X
Q
_,
4- 1/2
3
24- 1/2
12- 1/4
2
18 - 1/2
9- 1/4
2
_}
186
{
I
2! AB I.,1_ 4
TYPICAL
SIZES
FOR
BOSS TYPE
I.II _IING
TIi, ST SPFCIMENS
I
fitting
--
-.
"----- tube
I
',t
I
Te s t
Type
Fitting
Tubing
Tube
Size
___
I, II, VI
III, IV, V
VII
....................
VIII
IX
X
XI
XlI
titanium
titanium
-6
-6
boss
boss
7
7-1/2
boss
boss
boss
13- 1/Z
11 - 3/4
11-3/8
--I, II, VI
III, IV, V
VII
VIII
IX
X
XI
XII
I
Sequence
i
i
I
I
I
I
' i
I
I
_
Type
Length
'"A"
N o..
Re q' d.
8
18
titanium.
titanium
titanium
-6
-6
..... 6
titanium
titanium
titanium
-6
-6
-6
boss
be ss
.............
bos s
titanium
titanium
-10
-10
boss
boss
7-1/4
9-1/2
10
10.
- 10
boss
boss
boss
13- 1/2
11-7/8
11-3/4
2_
3
2
10
- 10
- 10
boss
boss
bos s
5
8- 1/2
7- 1/4
2
2
2
7-3/8lZ_
8
18
13 - 1./2
12 - IZ4
1 1-7/8
6-5/8
2
3
2
2
boss
8-7/*8
2
boss
7- 3/8
Z
titanium
titanium
titanium
titanium
titanium
titanium
........
.......
I. II. VI
IlI, IV, V
VII
VIII
IX
titanium
titanium..
titanium
titanium
titanium
-16.
-16
boss
boss
6
- 16
--16
X
XI
titanium
titanium
-t6
--I6
bos
boss
boss
boss
XII
titanium
- 16
S
4- i/2
8- 1/2
7
2
3
2
-
2.
2
2
8
18
!
{
a
x,
n
The
I
the
is divided
TIIBING
into
the
foll_wing
I
--
Armco
(BMS-7-185
3A1-2.5V Z1-6-9
TitaniumCRES (BMS-7.234
I
The.required.wall
of tubing
1:
I
we re
the
computed
will
produce.the
however
SwRI
the
304
The
assemblie.a,
NDI
processing
re$iabi2ity
wall
thickness
was
wall
and
tubing
to
respect
the
is
full
applied
so high
on
specimens
as
type
tubing
manu-
desired,
in the
past.
thicknesses.
listed
fittings
of tests
1/8
types
specification
used
is
type
304
of three
The
to any
wall
..
properties-and
selected.
(MIL-T-6845)
to the
this
test
mechanical
selected
_equence
(MIL-T-6845)
DMS-19441',)
A)
standards
separable
only)
or
Rev.
thickness
nominal
MS flareless
not
the
availahle
H CRES
was
for
MS fittings
on the
to use
received
factor
with
based
computed
1/8
with
(uSed
tubing
preferred
5 presents
CRES
thicknesses
facturerS
and._was_used
l
hard
standard
The
|
.t/8
nearest
Table
with
,
304
then
sections
to be tested:
tul)ir_g
-
I
--
i)xog_am
Tip.ST
only
for
H Class
of tubing
as
•after
a. Class
as
baseline
separable
II tubing
the
many
II tubing
data.
fittings.
be.cause
the
years
of
.........
production.
I
_
The
The
was
I
various.designs
i
received
I
1•/8 H CRF_oS_tubing
was
ordered
to the
MII,-T-6845
specifications.
i
i
304
Armco
21-6-9
assembled/tested
the
with
as. well
full
sequence
as
CRES
tubing
both
permanent
is lis_,ed
and
bosses.
The
two
of tests
scheduled
as
stSparable
types
for
a Class
I tubing
type
of_fitting/_ubing
each
category.
and
fittings
of
assemblies
The
21 -_,-q
!
....
TABLE
I
TEST
TUBING
I
WALL
6
TItICKNESSES
-6
_
304
]
i/8 hard
Armco
21-6-9
CRES
CRES
. 0 2 4 .....
"
.024
(NOMINAL)
-10
-16
041"
. 065"
.040
.064
4
3 AI-Z. 5V
]
.
,I.
]
I
I
!
Titanium
.027/. 030
.045/. 050
.072/. 080
r
,
I
!
1,
! 7
_89
l
tubing
received
I
S\vl{I
to Vc'rify
'-i"h,._ 2. 1-6-9
I
two
the
]'
_:
.
11
I
]
of f].aws
absence
tubing
was
The
3AL-Z.
ordered
5V
assembled/tested
i'
nn_, at lhe
l_iMlop
nr
Tube
defects
to either
Company
as
the
and
by lh,,
required
Boeing
or
_m_' al.
Douglas
specification,
Specifications
B M8.-_7 :.1.8_5. o_L"_DMS- 1944B.
I
iI_
Nl)I's;
titanium
with
tubing
both
was
permanent.,
listed
and
as
a Class
I tubing
sep._ara_b..le..___fittings
and
of
was
various
........
I
"designS.
The
Sequence
of
received
ing
the
received;
failures
-*
the
-_:
Tubing
types
tests
are
of
fitting/tubing
-Scheduled
same
two
one
Boeing
]
two
at
for
each
ultrasonic
Bishop
inspected
Specification
category.
re_ceived
The
inspections...(NDI)
Tube
for...the
assemblies
Company
presence
BMS-7-234,
and
one
of
flaws
Revision
A.
3AL-Z.
that
the
at
SwRI.
that
were
the
SV
full
...
tubing
21-6-9
tub ....
The
tubing.
not
picked
the
tubing
up
NDI
The
Z1-6-9
manufacturer
and
using
the
3AL-2.
ultrasonic
5V tubing
equipment
was
setup
inspected
to handle
by
twenty-feet
tubing
]"
length_s.
"
Recent
i
advanced..the
i
processing
dew,
lopmentu
state-of-the-art
facility
as explained
The-ultrasonic.inspection-
I
system
i
transducer
is moved
along
ment
_'equired
to perform,
I
I
whereby...tho._tuhe
is
by
the
transducer
and
the
only
problem
in the !'ollowing
of the..-tubing
immersed_.in...water,....then
a track
parallel
the inspection
manufacturer
via
is the
paragraphs.
was performed
rntated
has
significantly
fabrication
using
while
to the tube
axis.
The
method
two consist,_
of the
a
the
eCl,lil)of an
_,
Automation
i:
a fa:"
:ransig_te
focus
!_
R0flect0scopc
UM.-?21
with
plpg-inunit,__sed,
pulse-r_ceiv¢}r
with
transdu__er,1/Z'"diameter.
a type
This
setup
unit
5. FM
10 sdh.
10 Mhz
provides
and
SIZ medium
for_&Xiaw
resolution
ofO.005 in.
i' i I
A Bug-O-Track
and
Mark
IT drive
unit
is used
to accurately-move
!
i
the transducer
I
power
_ource..
Inc._,
is used
in the
required,axes,
Ii
1i
i'
: !i
:i
i
•
is @re-set
the
length
operator
of the tube
to accurately
and
position
If a flaw
the tube
simultaneously
detailed
mapping
mounted
automated
and/or
are.checked.simultaneously;
'
(parallel
i i
(45 ° to tube
t ,
trolled
move
an
turn
tubing
then
A test
tube
knOwn depth_of
the
induced
if time
are
and triple
characterized
flaw
flazcc_s_for_all
three
to alert
..................
as
for
probe-
and defects
as longitudinal
axis)
indicator
(which
well
area
is a factor
(90 ° to,tube
master
suspect
Double
are emplOyed
circumferential
is.activated
movementas
marks
............................................
transducer,
is detected
alarm
characterization.
flaws
by Automation,
magnitude
off all
by.a_separate
the immersion
stan__dards),
The
axis),
axis).
and
operatox:
flaw
systems
i
to tribe
The
is rotated
manufactured
of significant
t0_required
movement.
and
while
A Micro-Mini-Manipu!ato.ri
according
transducer,
i:
the
and, herringbone
is fab_'icated
patterns.
i
with
This
con_ ...................
test
':_
i '
....
tube
is used
_i!
set. the level
The
to calibrate
for
the
the
system
SST titanium
system
to trip
tubing
for
the
all
three
axes
and is also
used
to
--
alarm..
received
an ultrasonic
inspection
by Zirtex
}
' "
and tar-o-ultrasonic
inspections
_
Boeing.
The
Zl-6-9
tubing
received
,)
i
an ultrasonic
inspection
by Bishop
Tube
and
was
also
ultrasOnically
i.
_
inspected
by SwRI.
ultr_sonlc
inspection
The
i
tMgger
:
tubing
i
.!
I'
t
[.
i I
_.o
rejected
,!i
SwRI
the percentages
purchased
from
should
J
by
determine
Bishop
since the Boeing
:
i
was
maximum
appear
conducted
these
limits
of rejeeti0nbg
was
:SS.T;tubing was
Separate
tubing.in order to determine
SwRI.
set at .002"
dep.th.with,the
and
Bishop
specified.to
not texture
in the data between
by _oeing
was
A nominal
it.was
Tube.
controlled
amptunt of
impossible
The
contain texture
the two types
to
3AI-Z. SV TL
control.and
a marked
difference.
of finish according
identification was
the significance
tube &Iso received
received,by
as .020 x .060,
using
Tube
Bishop
and when
level for flaw detection
flaw surf__ce dimensions
t!
tubing from
after_fabrication
, ._.
LI
L
']?hetitanium
made
for each
of the.texture
to tests .
type of
control finish.
i
!
In some
I!.
1"
!:
I !
;_,
[
1
L
i
*
:1
[
.J
_,,,
i
.ws,
test tubing specimens,
superficial
scratches
determine, the_leveLof
O. C. inspection
by each
vendor's
the
others_did
Q.C.
caught
defects
while
were
vendor's
not.
installed to
facility• Some
]
_
i
,!
7: ,
" ""
XI,
MS
FI_I'TING "- BASELINE_DATA
_7
1
_'
'.!i
In the past,
many
individu$1 tests-have
flareless fitting with a minimum
I
,
_'
;
[
: _[
I
_:
!i
i
mate rial._ The
ii
tests as it should
been
conducted
Of documentation.
The
MS
on the MS
flareless
4 •
fitting_was accepted.as
tube joints presented
MS
a standard
for:a_number
a critical problem
flareless
of years
with theflaling
fittings surpassed
at the .3000 psi 0perating
fitting is highly overdesigned
as has been
the.AN
pressures
proven
because
flared
of the higher
strength
flared fitting in all
because
the MS
by Lockheed
series
Aircraft
at
I.
1-}
Burbank.
The;redesigne
d MS
fittings by Lockheed
zeduced
' i i'
fitting assembly
and the ...margins of safety are_still adequate
i
system.
These
redesigned
I,_.i
i_
in this program,
however..
•:
consisted
i
!;
fittings were
Only
not used
the standard
of a
for a 3000-_s_i....
as a baseline
MS fittings were
]
reler_nce-
used and they
I
!
of:
:
MS. Z 1.921
MS 21922
Nut .
Sleeve
_ !
MS_ZIgOZ.
Union
All MS
Weatherhead
made
MS
the weight
fittings were_assembled
tools
for
up in the same
]
F I
for the various
i
with the data from
i
the problem
presetting
the
.with prec.ise X-control
sleeves..
The
length as the test specimens
tests in order
test
specimens
submitted
that the requiting baseline
using the
I
were
by all vendors
data be compatible
__
i
°
change
the same
tests on each
in correlating_data
in the-test procedureor
from
vendor's
the previous
specimen
design
design.
This
tests because
can produce
has been
a minor
a significant.
.....
.......
.....
] I .........
]..........
....1 I
..
'If
:!
193
""
cl_ang0,
in thc
results.
dev01opment
:;
specimen
i: _
wel_ave
of a testing standard
design,
The
i
Therefore,
MS
of the
primary
with-detail specifications
e_quipmentdesign
reasons
covering
for
the
and 0perational. or test.procedures..
_n!on is considered
quantity of test specimens
one
as a separable
required
fitting and the minimum
is 39 for this program.
Thetest
proce-
ill
for each_te_t
contain
a. recommended
i
dures
minimum
I,
for qualification_re sting of .fitting/tubing as semblJe
number
of specimens
S.
I.
!
!"
" i
__
ing parameters:
[i i!
..........
Tempexature:.
Operating Pressure:
:
, i ::
i .( :
_ :
.i; :i I
!
Proof Pressure:
Min. Burst Pressure:
to +275 °Fpsi
6,000 psi
_ iZ,000 psi
and .Class II fittings_ Due to the overdesigned
configuration of the-MS fitting,
Each test proce-dure lists the applicable test parameters
for.Class.l
very
few failures
appropriate
I
-65°F
3,000
ing series
were
tests.
The
anticipated with_the Class
MS
separable
of tests using the noted
fitting assemblies_received
references
::
Z.
3.
;
!
i
,!';
'
the follow-
._
Reference
RepeatedAssembly
hilL-.F 18280- C
Proof
Burst
ARP-899
ARP-89@
Pressure
Pre ssure
....
4..
5,
::'-6..
""7.
Combined
Proof and Burst Pressure
Impul se Assembly
Torque.and
Misalignment
Axial Pull and _:_Tube Restraint
ARP-899
MIL- F 18 ?,8_
SwRl
SwRI__
"::8.
Structural
SwRI
Load
.,j
and
as a guide:
Te st
,:_i.
II parameters
Relaxation
i
",'-Applicable
i-
to
separable
fittings
only
!
1 .....I--I
....
r........
1.......
!,
_9_____
i
'2
;
Test
i:
m#
Rete renc_
9.
]-0•
Gaseous .Leakage
Fire .Resistance
ARP-899
ARP- 1055
ii..
12.
Thermal
Shock
Stress Corrosion
ARP-89-9
ARP-899;
F-TS-15_I
MIL-FlSZS0-C
,i
:
!
! ! _,
-,13.
il
14,
ii
Under
I
_Vibration
as
-J
i i.....
Rotary
Flexure
"References",
a guide,
MIL-STD-810B
and Fatigue--
if no standard
Southwest
Research
and
--
existed
MIL-F-18Z80-C
for the partic_ular test to use
ASDjointly
agreed
On the
recommended
procedure.
ii
Carbon
Jl
steel MS
i -
assemblies,
i i:
_
or_this combination..The
sleeves
and nut. were
used
knovging that the stress_corrosion.test
test results onthe
MS
in the test specimen
would
be rather
severe
fittings are-_zontained in
!
i
i
a separate
:
"-
volume
The
_
i
a separate
MS
i
Tube
of this series _nd
complete
report
MS_fitting
entitled:
Fittings",
test
"Baseline
and is available
are made
program
and
Data
from
public information.
re salts
from
Tests
_are
assembled
Conducted
the ASD/ENJPH
in
oaStandard
project office.
'
!
%,
!
.............
'::Applicable
to separabl
e fitting_
9nly
r--]
'
I_
,,,
•
i
'I
.......
-
-
i
-
2_
.
-2"
_
'
i
i
"1
11m iii
_.
1
'..9s
1_
XII.
SUMMARY.
l
Due
i
to.a curtailment
pleted at this time...Every
testing of%he, remaining
of funds,
the total program
effort will be made
test Specimens
could not be corn .....................
to secure
funds to complct_
o,r at least the more
..........
critical or
i
i
important, testa,. The
foregOing, sections present
the general
overall pro-
?'
i_
!!
i!
_:
gra.m with the exception
fitting baseline
public
i _i
Only
the final report
available
tO everyone.
The,
data
types of fittings will not be disseminated
vendors
will
Any
desiring
on the MS
data contains the results, of the_test data because
information
Various
of the test data.
reCeiv_
copies
of the
data
generated
__
this is
from
the
to the public and only_!he
pertaining
to their
o.wn fittings.
!i
,:
L
'
i
)
i:
, . :
one,
Copies
test.
data
resulting
f_,o.m, this
.test
program.,
will be referred, to the particular vendo__rin question.
If-the vendor wants
that particular, data made
available, then he has th_night to do so.. No one-but ASD-will.have_a
]
of the
own
copy
of the total data package
and this will be for their
inte rnal use.
,, ]
Aspreviously
explained,
there
was
no winner
picked_aS
a result of
J
this test program..
The
fittings we,__e simply
!
l
identical conditions
so that a true comparison
....
;
For lhis reason_Lhe_/VIS
purchased
and evaluated
under
i
the MS
fitting w&s_tested
and.evaluation
to be used
could be made
as baseline-data
•
Since
fitting is still,a reliable fitting (though hea-vy) for 3000 psi systemS,
i
;
I
If funds are.acquired
i
the
to complete
testing oftlm
remaining
speci.mens., only
F
:
attached
data.sheets
will
be
revised
by
additional
data
potnts.
.i
i
i
!
1
t
m
mm
!
Tlier_
)i
attached
:_
data
j _
for
! _'
is no analysis
data
summaries.
applicable
which
to his
-It
it is intended.
have
comments
other
specimen
Any
herein
Ii
can
Hess
i J
be
(513/_255-5229)
at Southwest
accompanied
Be genera
questions
directed
to the
Institute
each
results
included
vendor
couhl
it any way that
that
are
considered
best
in the
take, the,,
guits
the use
as destructive
0f failure
was
by comments
',viii
generated.
and data
All
from
which
te.d,
concerning
project
or to the
Research
that
and what.type
can
technical
agreed
The tests
are
Of the test
and_analyze
as to where
tests
was
fittings
an analyses/summary
__
or criti_tue
this report and data. contained,
monitor
at
A_.e_)./ENJPH,_LM__._
contrac£_,projectmanager,
in San Antonio,
M!.
Texas
Ray
C.R..U.rsell,
i
(512/684-5111}.
The
J
I
test
i
t '
I •
macl
Southwest
i!
_: _..!
i
that
can
;
report,
inery
and
Research
be used
equipment
for
in direct
use
used.in
by fitting
correlation
this
program
manufacturers
with
the test
will
remain
to obtain
results
intact
test
at.
data.
attached
_o this
!
'
i
i
!
i
;
i
i
i
'
mmm,--_L__.__
.......
.....
,
,
,
,m
I
I
2_
".......
Ill
197
:' }
RE l_ .,.I{]_N CES
.!!
,WiUtary
Speoifi¢ tlons
!il
'!!
MIL-F-18Z80
MIL-_'.-5509
Fitting_ Flareless
Tube, _luid Connection
Fittings, _lared
Tube., _'luid Connection.
MIL-F_7417
I
' ii
_' : :' i
Fittings,. Rocket
Engine,
Fluid
Connection
Military Standards
i
:"
_.
! 11
! i
iL
il
i:
i
MIL-STD-810
Fluid
Gonnection.Internal
Straight
Thread
Installation
0fFlareless
Tube
- Straight.Threaded
Installation.of
Flared
Tube,
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Environmental
Test
Method_
NASA
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KSC-F124 Fittings/Pressure
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Specifications
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Test Equipment
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RTD
ASD
Fluid System.,
Permanent
and. Fire Test Requirements
for Testing
Testing
Hydraulic
of Hydraulic
System
Tubing,
Type
for Fluid
Components
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Joints and F_ttin
s
Titanium
6AL-4V
Hydraulic
Plumbing
for Advanced
Aero-
Vehicles-
AF'RPL-TR-65-161
RPLTDR
and.Connections,
.Fire Resistance
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space
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MS33649-BosseS,
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Fitting,
Explor.atory
Development._Work
on Families. of Welded.
Fittings for _ocket
Fluid Systems64-24 Applied.Research
and. Develop.ment
On Families
of Brazed
and Welded
Fittings for Rocket Propulsion
Fluid Systems.
TR. 65-162 Development
Fluid Systems
of AFRPL
Threaded
TIIR 63-4115 Development
of Mechanical
TR 61-4B3 Metallic Boss Seal Evaluation
Fittings /or Rocket
Fittings -.Phases
and. Tes_ Program
1 and ii
RPL
T/DR 64-25.Aerospace-Fluid
Component
De-signers Handbook
Vols 1 & 2
NA 60-648.Evaluation
of AIVL,350 CRES
Hydraulic. Tubing and LD 273-0001Union - Brazed
Tube for 4000 PSIG.Hydrauiic
Systems
Applicable
to SB-70 Airplan_
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Criteria
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