1
B S I BS*4504:
1 6 2 4 b b î 0277780 T
P A R T S 1 67
m'
BRITISH STANDARD 4504 : 'Part 1 :1969
UDC 621.643.4-034.669.1
SPECIFICATION FOR
FLANGES AND BOLTING FOR
PIPES, VALVES AND FITTINGS
METRIC SERIES
Part 1. Ferrous
O B S 0LESC E N.f
AUG 1989
BRITISH STANDARDS I N S m O N
--`,``-`-`,,`,,`,`,,`---
Copyright British Standards Institution
Provided by IHS under license with BSI
No reproduction or networking permitted without license from IHS
Not for Resale
B S I BS*4504:
PARTS3 6 9
Lb24bb9 0277983
I W
BS 4504 : 1969
THIS
BRITISHSTANDARD,
having been approved by the Mechanical Engincering Industry Standards
Committee, was published under the authority of the Executive Board on 23 September, 1969.
SBN: 58005742 9
The Institution desires to call attention to the fact that this British Standard does not purport to incliidc
all the necessary provisions of a contract.
In order to keep abreast of progress in the industries concerned, British Standards are subject to
periodical review. Suggestions for improvements will he recorded and in due course brought to the
notice of the committees charged with the revision of the standards to wliich they rcfcr.
A complete list of British Standards, numbering over 5000, fully indexed and with a note of the contents
of each, will be found in the British Standards Yearbook. The BS Year-book may be consultcd in
many public libraries and similar institutions.
This standard makes rcferencc to the following ßriiisli Standards:
Pipe threads.
Whiteheart malleable iron castings.
Blackheart malleable iron castings.
Wrought steels in the form of bars, billets, and forgings, up to 6 in ruling section, foi.
automobile and general engineering purposes. Enseries.
BS 1400;-- S c h e d u l c - o f - e o p p e r r t I l e ) c i n g o r 4 - a n d - e o y p.
BS 1452, Grey iron castings,
BS 1501. Steels for fired and unfired pressure vesscls. Plates.
BS 1501-6. Steels for use in the chemical, petroleum and allied industrics.
BS 1821. Class I oxy-acetylene welding of steel pipelincs and pipe assemblies for carrying fluids.
BS 2633. Class I arc welding of ferritic steel pipework for carrying fluids. .
BS 2640. Class II oxy-acetylene welding of steel pipelines and pipe nsscniblihs for carrying fluids.
BS 2789. Iron castings with spheroidal or nodular graphite.
BS 21,
BS 309.
BS 310.
BS 970.
A
. I
Etsw%--.-p-
A
*sa8?4743~w-effd-eeppw-all-...O-.’
BS 2971. Class I l metal-arc welding of steel pipelines and pipe nsscmblies for carrying fluids:
BS 3643. I S 0 metric screw threads. Part 2, Limits and tolerances for coarse pitch series threads.
BS 3692. IS0 mctric precision hexagon bolts, screws and nuts.
BS 4190. I S 0 metric black hexagon bolts, screws and nuts.
BS 4320. Metal washers for general purposes.
BS b37.R Ductile iron pipes a d Vtttings.
BS 4622. Grey cast iron pipes and fittings (mctric diinetisions).
1
British Statidrirds are revised, wlieti iiecessary, by the issire eitlier oJotiicticltt~ctitslips or of revised e;l.Ìioris.
It is imporlotif that risers of British Stoti;lurtls slioirltl osrrrtciiti tliot tliiy ore irr possi*ssiori of tiie latest
ntneti(lt,ients or edifiotrs.
’BS4439. Screwed studs for gcneril purposcs. .
.BS4882. Bolting for Ranges and pressurecontaining piirposes.
,
* l i 1 coiirsc of prepuriilion.
Thc following BSI references rrlutc lo ihc work o n I I . .stuiidurd:
~
Conimiiiec refereiicc MEE/i I . MEF./I I;I t h I l for commcnl
67!7402.
--`,``-`-`,,`,,`,`,,`---
Copyright British Standards Institution
Provided by IHS under license with BSI
No reproduction or networking permitted without license from IHS
Not for Resale
PART*l b9
BSI B S * 4 5 0 4 :
lb24669 0277982 3
mL
BS 4504 : 1969
CONTENTS
Co-opcrating organizations
Forcword ,
,
,
. . . .
. .
,
.
Page
5
6
. .
SPECIFICATION
. .
.
.
. .
4.
5.
.
i
,
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. . . . . .
.
. .
. . . . . .
.
. .
. . .
. . *
. . . . . . . . .
ri
1.
8.
9.
AI.
A2,
Prcssurc/tcmpcrature ratings for steel flanges.
Prcssurc/tcmpcratiire ratings for grcy and
.mallcable cast iron and copper alloy flanges
B.
Summary of contents of flange tables
,
2.5/2. Stccl wclding ncck flangcs. Nominal pressure
2.5 bar
,
2.513. Siccl plaic flanges for welding. Nominal
prcssurc 2.5 bar.
2.5/1 I . Intcgral grcy cast iron flangcs. Nominal
prcssurc 2.5 bar.
Stccl wclding ncck flanges. Nominal pressure
612.
,
6bar
Stccl plate flangcs for welding. Noiiiinal
6/3.
prcssurc 6 bar ,
Stccl scrcwcd boss flangcs. Nominal prcssurc
614.
,
'
6 bar
Stccl slip-on boss flanges for wclding. Nominal
B/S.
prcssurc 6 bar
Stccl loose flangcs for wcldcd on lappcd pipe
616,
cnds, Nominal prcssiirc 6 bar
618.
Stccl platc blank flanges: Nominal prcssure
6 bar
6/l I . Iiitcgral grcy cast iron flanges. Nominal
prcssiirc 6 bar
,
6/12. Mallcablc cast iron integral flangcs. Nominal
prcssurc 6 bar
6/13. Mallcnblc cast iron scrcwed boss flangcs.
Nominal prcssurc6 bar
,
I0/2. Stccl wclding ncck flangcs. Nominal pressure
IO bar
,
,
IO/3. Stcci platc flangcs for wclding. Nominal
prcssurc IO bar
1015. Stccl slip-on boss flanges for wclding. Nominal
pressure IO bar
I0/6. Stccl loose flangcs for wcldcd on lappcd p i p
cnds, Nominal pressurc 10 bar
I0/8. Stccl plate blank flangcs. Nominal prcssurc
IO bar
,
1o/ I I Intcgral grcy cast iron flangcs. Nominal
,
prcssurc IO bar ,
.
.
.
. .
.
. .
.
.
. .
. .
.
.
.
.
.
.
.
.
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<
.
I
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. . . . . .
.
.
. . . .
TABLES
'
.
.
.
.
a
.
.
.
. . . . . .
. . . . . . .
. . . . . .
. . . . .
.
. . . . .
.
. . . . .
Scopc
Design tcmperaturc and prcssurc
Dcsignation
Flanges
Bolting
Attachmcnt of flanges
,
,
Hydraiilic tcsting of flangcs.
Dctails to Uc supplied by thc piircliascr t4hcn
ordcring flangcs and/or bolting
Marking
I.
2,
3.
P'age
Integral steel flanges. Nominal pressure
16bar
1612. Steel welding neck flanges, Nominal pressure
16bar
1613, Steel plate flanges for welding. Nominal
pressure 16 bar
i6/4. Steel screwed boss flanges. Nominal pressure
16 bar
16/5. Steel slip-on boss flanges for welding. Nominal
pressure 16 bar
16/8. ,Steel plate blank flanges. Nominal pressure
16bar
*
.
16/11. Integral grey cast iron flanges. Nominal
pressure 16 bar
16/12. Mallcable cast iron integral flanges. Nominal
pressure 10 bar and i 6 bar
16/13. Malleable cast iron screwed boss flanges.
Nominal pressure 10 bar and 16 bar
46/21: Intcgral copper-.-alloy .- flangesr-Nominal
.pressUrel6 bar-,r-..
25/1. Intcgral stcel flanges. Nominal pressure 25 bar
25/2. Steel welding neck flanges. Nominal pressurc
25 bar
25/3. Steel plate flanges for welding. Nominal
pressurc 25 bar ,
25/5. Steel slip-on boss flanges for welding. Nominal
pressure 25 b a r .
25/8.. Steel plate blank flanges. Nominal pressure
25bar
,
,
25/11. Integral grcy cast iron flanges. Nominal
prcssurc 25 bar
25/12. Mailcablc cast iron integral flanges. Nominal
prcssurc 25 bar
25/13. Mallcablc cast iron screwed boss flanges.
Noniinal pressure 25 bar ,
25/21;-.lntcgrnl copper -alloy flanges. Nominttt
pr~ssure-25bar-.- - -I-,.
40/1, Integral stccl Rangcs. Nominal prcssurc 40 bar
40/2. Stccl welding ncck flanges. Nominal pressure
40 bar
40/3. Stccl platc flanges for welding. Nominal
pressure 40 bar
,
40/4. Stcel screwed boss flanges. Nominal pressure
,
,
25 barand40 bar
40/5. Stcel slip-on boss flanges for welding, Nominal
prcssure 40 bar
40/8. Stccl plate blank flangcs. Noniinal pressure
40bar
.40/2~~ntegral--copper~-silIoy-flanges.---Nominat
..pressure 4bar-<--. . ,..- . - - - - - .- ..-, -..
64/1. Integral stcel flanges. Nominal prcssiirc 64 bar
64/2. Steel welding ncck flangcs. Nominal pressure
64 bar
64/3. Stcel plate .flanges for welding. Nominal
pressure 64 bar
64/4. Steel screwed boss flanges. Nominal pressure
6 4 b a r . .
lOO/l. Intcgral steel flanges. Nominal pressure
100 bar
16/1,
IO
13
14
16
17
18
19
20
21
22
23
24
25
26
. .
.-
0
. . . . .
.
. ,
. . .
. .
. .
. . .
.
.
.
.-- .
. . . . .
.
. .
.
.
. .
e
27
28
30
31
32
33
.
. . . . . . .
a
29
.
.
.
35
36
37
38
39
40
41
42
4344
45
46
47
48
49
so
51
-52
53
54
55
56
57
58
. . .59.
. . . . . . .
. . . .
. . . . .
.
34
60
61
62
63
64
3
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Copyright British Standards Institution
Provided by IHS under license with BSI
No reproduction or networking permitted without license from IHS
,.
Not for Resale
BSI B S 8 4 5 0 4 : PART*L 6 9
L b 2 4 6 6 9 0277983 5
BS 4504 :1969
pap
lOO/2, Steel welding neck flanges. N o r h a 1 pressure
100bar.
.65
1OO/3, Steel plate flanges for welding. s o m i r i a l
. . . . .
pressure100bar
. . . . . 66
l00/4. Steel screwed boss flanges. Nominal pnssure
100bW
.
.
67
160/1. Intcgral steel flanges. Nominal pressurc
160bar .
. . . . . . 68
160/2. Steel welding neck flanges. Nominal pressure
a
160bar
. . . . . . .
69
160/3. Steel plate flanges f& welding. Nominal
pressure160bar
70
. . . . .
--`,``-`-`,,`,,`,`,,`---
4
Copyright British Standards Institution
Provided by IHS under license with BSI
No reproduction or networking permitted without license from IHS
a
Not for Resale
Page
250/1. Integral steel flanges. N&inal pressure
250bar.
. 7 1
250/2. Steel welding neck flangcs. Nominal pressure
250 bar
72
320/1. Integral steel flanges. Nominal pressure
320 bar
73
320/2. Steel welding neck flange% Nominal pressure
320brri
74
&û/i. Integral steel flanges. Nominal pressurc
4ûObar.
75
400/2. Steel welding neck flanges, Nominal pressure
. . . . .
. . . . . . . .
. . . . . . . .
. . . . . . .
4ûObar
. . . . . .
. . . . . . . . 76
BSI B S * 4 5 0 4 :
P A R T * l 69
= Lb24669
0277984 7
BS 4504 : 1969
CO-OPERATING ORGANIZATIONS
-
.
.
The Mechanical Engineering Industry Standards Commjttec, under whose supervision this British
Standard was prepared, consists of representatives from the following Government. departments and
scientific and industrial organizations:
*Associated Offices' Technical Committee
*Association of Consulting Engineers
Association of Mining Electrical and Mechanical
Engineers
Board of Trade
British Chemical Plant Manufacturers'
Association
*British Cornprcssed Air Society
*British Electrical and Allied Manufacturers'
Association
British Gear Manufacturers' Association
British Internal Combustion Engine
Manufacturers' Association
*British Mechanical Engineering Federatioli
British Pump Manufacturers' Association
*British Steel Industry
Crown Agents for Oversea Governments and
Administrations
Of
and Productivity
(H.M. Factory Inspectorate)
'Electricity Council, the Central Electricity
Generating Board and the Area Boards in
England and Wales
*Engineering Equipment Users' Association
Gas Council
Institute of Marine Engineers
*Institution of Civil Engineers
*Institution of Gas Engineers
..
Institution of
and Ventilating ~~~i~~~~
*Institution of Mechanical Engineers
. Institution of Mechanical Engineen
(Autamobile Division)
Institution of Production Engineers
- Locomotive and Allied Manufacturers'
Association of Great Britain
.
London Transport Board
Machine Tool Trades Associaion
Ministry of Defence
Ministry df Defence, Army Department
Ministry of Power
Ministry of Public Building and Works
Ministry of Technology
*Ministry of Technology-National Engineering
Laboratory
Ministry of Transport
National Coal Board
National Physical Laboratory (Ministry of
Technology)
Royal Institute of British Architects
p.
.
The Government departments and scientific and industrial organizations marked with an asterisk in the
above list, together with the following, were directly represented on the committee entrusted with the
fireparalion of this British Standard:
Black Bolt & Nut Association of Great Britain
British Malleable Tubc Fittings Association
British Valve Manufacturers' Association
British Waterworks Association
Copper Development Association
Institute of British Foundrymen
Institution of Water Engineers
Lloyd's Register of Shipping
Metropolitan Water Board
Ministry of Defence, Navy Department
National Association of Drop Forgers and
Stampers
North East Coast Institution of Engineers and
Shipbuilders
Tank and Industrial Plant Association
The Welding Institute
Water-Tube Boilermakers' Association
Manufacturers of Pipes and Flanges
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BSI B S * 4 5 0 4 :
PART*I,
Lb24bb9 0277985 9
69
=
BRITISH STANDARD SPECIFICATION FOR
BS 4504 : 1969
FLANGES AND BOLTING FOR PIPES,
VALVES' AND 'FITTINGS. METRIC SERIES
,
.
-
-
,
. ...
--'FOREWORD
__ . -
_.
h SHOULD-BE.NOTED THAT. AT-THE TIME ÖF ISSUING <HI; AMENDMENT, PROPOSALS A R E
UNDER CONSIDERATION WITHIN CEN/WG 74, FLANGES, EFFECTJVELY RECOMMENDING THAT
THE USE OF DIN-BASEDFLANGES IN.BS 4504 BE LIMITEDTO A MAXIMUM PRESSURE m.40 BAR,
IF THESE PROPOSALS ARE AGREED AND RESULT IN THE PUBLICATION OF A EUROPEAN
- .
STANDARD, BS 4504 WILL BE AMENDED ACCORDINGLY.
~
L-
This British Standard has baen prepared under the direction of the Mechanid Engineering Industry Standards Committee
and is ohe of those intended for use by industry as it adopts the metric system.
Before 1939 the I.S.A. (International Federation of the National Standardization Associations) prepared bulletins for:
European Standardization and in 1940, Bulletin 5% ' Pipes and connections *, was circulated, and this has been reflected
in the national standards of European countries since that time.
On the formation of the I S 0 (International Organization for Standardization) Technical Committee 5, ' Pipes and
fittings ', set up subcommittees to deal with pipes and flanges and recommendations have been published for 'pipes as
4
follows:
ISO/R 13.
ISO/R 64.
ISO/R 65.
ISO/R 134.
ISO/R 221.
ISOjK 228.
ISO/R 336.
\
AJ alfered
'an"ory 19'
Q
A i olrrrrd
1971
. .
Pipe thrads for gas list tubes and screwed fittings where pressure-tightjoints are made on the threads (% in'
to 6 in). (BS 21 is in accord.)
Cast iron pipes, spcial castings and cast iron parts for pressure main lines.
S e l tubes. Outside diameters. (The appendices to BS 36014 are in accord.)
Steel tubes suitable for screwing in accordance with I S 0 Recommendation R 7. (BFf387 is in accord.)
Non-screwed steel tubes for general purposes (2nd edition).
Steel tubes. Thicknesses. (The appendices to BS 36014 are in accord.)
Pipe threads where pressure-tight joints are not made on the threads (% in to 6 in).
Plain end steel tubes, welded or seamless, General table of dimensions and masses per unit length.
~
--`,``-`-`,,`,,`,`,,`---
ISO/R 7.
Tho I S 0 TC5 subcommittee concerned with the standardization of flange dimensions was unable to come to any
agreement as the ISA, ASA and BS 10 flange dimensions were not compatible.
Since the publication of the 180 recommendations mentioned above European national standards organizations' have
been revising their flange standards to bring the flange to pipe connecting dimensions into accord with Recommendations
N64,and R/336. The German Standards Association (DNA) has made much progress in this field.
The BSI committee reviewed the ISA flange tables and particularly the German DIN standards and has modelled this
British Standard ont them. Acknowledgement is here made for the co-operation extended by the DNA. The mating
dimensions in this standard are therefore in accord with European practice. However, the pressureltemperature ratings
given in Table AI have been adjusted to take advantage of the long term testing and long experience of the BS 10' ratings
fot W b o n S t d flanges.
It is the practice in Europe to use steel welding neck flanges for all pressure/temperature ranges. Plate flanges are more;
commonly used in the UK and are therefore included in this standard.
This British Standard incorporates current European practice, It should be noted that there are some European stnndards for cast iron pipes based on ISO/R 13, 'Cast iron pipes, special castings and cast iron parts for pressure lines ', the
flange dimensions of which differ marginally from those given in Tables lO/ll and 16/11 but these differences do not
'affect mating dimensions. It is intended to develop ductile cast iron flanges to the ISA bulletin mating dimensions and in
add them to this standdrd in due-course.
'NOTE 1. Rcssurci in this standard am liven in bar (gauge) 1 b u = 10 N'hi'.
NOTE 2. All dimensions throuihout this standard am in mill¡melms unless othcrwiw stated.'
BS 10, ' Flanges and bolting for pipes, valves and Rttinp
Copyright British Standards Institution
Provided by IHS under license with BSI
No reproduction or networking permitted without license from IHS
*.
Not for Resale
B S I BS*Li504:
PART*3
bï
m
3624bbï 0277986 O
m
DS 4504 : 1969
A
A t addrd
January 1972
and
Frbruary 1972
--`,``-`-`,,`,,`,`,,`---
SPECIFICATION
Details for ductile iron pipesand ductile iron pipe fittings are specified in BS 4772.
Immediately after this new sentence insert the following new paragraph:
Detailsol flanges for grey iron pipesand grey iron pipe fittings are specified in BS 4622The types and materials of gaskets used shall be agreed
between the purchaser and the manufacturer.
1.1 SCOPE
For the purpose of interchangeability in the mating of
This British Standard specifies requirements for circular .
flanges, the dimensions which relate to the outside diaflanga of the following types and materials with the
meter of the flange, pitch circle diameter of drilled holes,
appropriate batting :
and the number and size of bolts, shall apply regardless of
Integral: steel,
cast iron, malleable cast iron
the materials from which the flanges are manufactured,
It should be noted, however. that full face gaskets are
Welding neck: steel.
necessary for copper alloy integral flanges up to 100 mm
Plate: steel.
nominal diameter.
Screwed boss: steel and malleable cast iron:
NOTE I. The term plate Bange ' indicates the shape or the flange.
Slip-on boss: steel.
Such flanges are not necessarily made from steel plaie but may be
made from forged or cast steel.
Loose for welded on lapped pipe ends: steel. .
NOTE 2. The term ' integral flange applies to flangc2in'cgrd wilh
Blank: steel.
pipes, valves rind things.
6-Q
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No reproduction or networking permitted without license from IHS
Not for Resale
.
E S 1 BS*4504:
PART*L
69
= Lb24669
0277987 2
2. DESIGN TEMPERATURE AND PRESSURE
--`,``-`-`,,`,,`,`,,`---
The temperature end pressure ratings given in Table AI
and A2 arc design pressures and temperatures for the
materials listed. Where there is an appropriate application
standard it is the responsibility of the purchaser to ensura
that the des.@ pressure and temperature stated comply
with the requirements of that standard.
The pressure ratings for materiais other than grey cast
iron am applicable to installations subject to moderate
shock such as may m u r in well designed and efficiently
operated boiler feed mains. Where a system may be subject
to severe shock it is the responsibility of the purchaser to
make a suitable allowance when stating the design
pressure.
The pressure rating for grey cast iron flanges, where
such are used in pipelines containing water, are for nonshock conditions. Where moderate shock (such as may
occur in an efficiently designed and operated boiler feed
main) is likely to be present, the pressure and temperature
rating should be reduced by 25 %.
I
3. DESIGNATION
The flanges shall be designated by the nominal sizC and
flange table reference.
The first part of the table referena is the nominal
pressure<Pl.r),
’ The second part of the table reference indicates the
material and type of flange as follows:
1. Steel-integral.
2. Steel-welding neck.
3. Steel-plate for welding.
4. Steel-screwed boss.
5. Steel-slip-on boss.
6. Steel-loose for welded-on lapped pipe ends.
8. Steel-blank plate.
11. &ey cast iron-integral.
12. Malleable cast iron-integral.
13. Malleable cast iron-screwed boss.
4. FLANGES
4.1 Materials. Materials shall be. those given in Ta-iles A
and A2 except that alternativc materials may be used
provided that their mechanical properties are not inferior
at the operating temperature. Where there is an appropriate
application standard it is the responsibility of the purchaser
to ensure that the materials comply with the requirements
of that standard. In this respect attention is drawn to
BS 806 and BS 759,
Certified materials are specified for carbon steel flanges
for use at temperatures in excess of 400°C ynd recorn=
mended for alloy steel flanges for use at temperatures in
excess of 475°C. Representative elevated temperature
tests at the temperature or temperatures specified by the
purchaser shall not be required for material specified to
the order provided the manufacturcr has obtained ccrtification approval for thc supply of matcrial covcîxd by thc
relevant material spccification, following the procedure
described in BS 3920, which lays down conditions undcr
wliich he shall denionstratc thut ihc siccl in questioh
consistently has ihe properties specified in the relevant
maferial specification.
Copyright British Standards Institution
Provided by IHS under license with BSI
No reproduction or networking permitted without license from IHS
Not for Resale
.
7
E S 1 BS*4504:
P A R T * L 69
= 1624669 0277988
I
4
I
.
l
..-
4.2 Machining of flanges.
4.2.1 All flanges shall be free froni laminations and surface defects.
4.2.2 Flanges shall be finished as follows.
--`,``-`-`,,`,,`,`,,`---
( i ) All flanges shall have their jointing surfaces machine finished, The finish,of jointing surfaces up to and including
PN 40 shall not be coarser than given in the following table appropriate to the method of machining. For flanges
. above PN 40 it is recoinmendcd that ihc surface finish should comply with the rcquirements of BS 1560.
hlclhod of mnrhlnlng
Turning
Other than tiirning
1
R.
I
iim
12.5
3.2.
R.=
1
pin
I
' A
RSll34
, Grade ref.
'
Rr
Irm
500
50 1087.5
125
12.5 1022.85
N.10
N.8
NOTE. Thc term 'tiirning' ixludes any method oîmuchining producing conccniric or spiral grooves.
(I)Flange outside diameters may be unniachined unless a machine finish is specified by the purchaser.
(3) Unlcss otherwise specified by the purchaser, all bolt holes shall be drilled, shall be equally spaced on the pitch
circle diameter and, in the caw of integral Ranges. shnll be drilled off-centre.
(4) Bearing surfaces for nuts shall be parallel to the flange jointing face within I O..
4.3 Tolerances on Bange &meter,
thickness and length of
weldlng necks Flanges shall be subject to the following
tolerances.
.
4.3.1 Outside diameter (O)
Up to 200 inclusive
Over 200 to 300 inclusive
Over 300 to 400 inclusive
Over 400
Nqt
Machined
machined
f l
fl.5
&2
*2
*3
f2
f2
d3
43.2 Thickness (b)
Q
43.2.1 Flanges integral with valves and fittings (other than
forged stee)
Thickness
up to IO
Over 10 up to 20 inclusive
No!
Machined
at back
mnchined
at back
+1*5
-0
+2-o
3-2.5
-0
+3-5
-0
3-23
+4*5
-0
-0
Over 30 up to 50 inclusivo
+3*0
-0
+6*5
Over 50 up to 70 inclusive
3-4.0
t a s 5
-0
-0
Over 70 up to 100 inclusive
3.5.0
Over 100
+7*0
Over 20 up to 30 inclusiva
-0
-0
3.104
-0
-0
+14.5
-0
-0
4.3.23 Flanges not integral with valves and fittings and
forged steel
and fittings.
integral with valves
A
AI O d d d
Frbruary i972
Thkknesr
Up to 35 inclusiva
I
Over 35
Not
machined
at back
Machined
at back
+les
-0
+3
-0
f 3
-0
3.5
-0
:
Ductile iron pipo filtlngs and accessories for pteuure pipelines
(In course of preparntion.)
For tolerances on grey cast iron pipes with flanges scs BS 4622
' Grey erst iron pipes and fillings (iiietric dinipnsions)
a
Copyright British Standards Institution
Provided by IHS under license with BSI
No reproduction or networking permitted without license from IHS
A i alrered
January i972
I.
Not for Resale
A
-
I
1
BSI BS*Ll504:
PART*:L
69
m
L b 2 4 b b 9 0277989 b
fl.5
6. ATTACHMENT OF FLANGES
6.1 The method of securing flanges (othcr than inteprii;
tlanges) to pipes and fittings shall be in accordance with
the appropriatc applicatlon standard. Where there is no
application standard the method of attachment shall tx
the subject of agreement between the purchaser and the
manufacturer.
f2
f3
6.2 Flanges shall be prepared for attachment to pipes as
follows.
BS 4504 : 1969
4.33 Leqyerh of welding neck ßmge (hi)
Machined
Up to 80 nominal size inclusive
Over 80 to 250 nominal
size inclusive
Over 250 nominal site
m
6.2.1 ScrewedJunges. Screwed flanges shall be screwed in
accordance with the appropriate table (see Clause 8.
item (5) ì.
4.4Joint faces
Ar alrered
I972
January
4.G.l The standard form ofjoint face for flanges covered by
this specification shall be as follows:
6.2.2 Sfeeiplate and steel slip-on 60ss~%7nges.Steel platc
and steel slip-on boss flanges shall be machined in tlie borc
to a diameter to be specified by the purchaser and suirablc
for welding to form one of the types in the appropriatc
application standard as required by the purchaser. Tlic
purchaser shall speciiy the weid preparation required.
A
(t 1
cast iron integral
flanges shall have raised joint faces as shown in the tables
unless specified otherwise by the purchaser.
(2) Malleable cast iron screwed flanges shall have flat
joint faces.
(3)Steel flanges shall have raiscd joint faces except that
blank flanges may be flat faced or have a spigot at the
option of the manufacturer.
6.2.3 Welding neckflanges. Welding neck flanges shall tx
machined in the bore to a diameter to be specified by thc
purchaser, and suitably prepared for welding to pipes an2
fittings. The thickness of the portion.of the flange whiclconnects it to the pipe shall be not less than the p i p
thickness nor more than 3 mm thicker.
6.2.4 Looseflanges. Loose flanges shall he machined
accordance with the appropriate table.
4k.2 Where i t is impractical for tlie manufacturer to
provide a raised joint facc on cast iron or steel Ilanges the
flange may be flat faced, its tliickncss being in accordance
with the values specified for dimension 'b' clscwhere in this
standard.
Q
ir
--
4.rc.3 I t is thc rcsponsibility of ihc user to sclcct gasket material which is suitable for the fluid at the intended working
tenipcraturc and prcssurc conditions.
5. BOLTING
Material8 and threads. The design temperature and
pressure ratings given in Tables A l and A2 are for the
bolting materials listed. Alternative materials may be used
provided their mechanical properties are not inferi0.r at
. the operating temperature.
A
5.1.2 The diiiicnsions and finish of studs arid hexagon hcadcd holts with hexagon niits shall coniply wiíli the requirements of OS 3692, BS 4 190 or RS 4439 as iippropriiile.
5.1.3 The diiiiensions and finish of stiid bolts with hexagon nuts shall comply with ihc rcquircments of ES 4882:
1973, Scctioiis I aiid 2.
5.1.4 S t u d bolls may bc of the foriiis shown in BS 4882 exccpt that forni 'b' applies only to stud bolts of othcr than
illloy stccl.
5.1.5 Frcc cutting stcels for studs. bolts. stud bolts and nuts shall only be perniillcd when spccificd by ihc piirchascr,
und their iisc shiill bc rcstrictcd to thc tenipcratiirc range -10 "C to 100 "Cfor noininal prcssiircs tip l o and including
IO ber,
5.1.6 Whcrc washers arc uscd they shall bc of an appropriutc iiiiitcrial and their dimcnsions shall coniply with the
rcqiiirciiicnts ofTul>lc3 of HS 4320:1968.
Siiindard Muck noriiiul scrics wushcrs coniplying with thc rcqiiircnlcnts of nS 4320 may be iiscd for thc tcinpcrutiirc
rungc 30 "C to 2M "C.
-
I
*
'
BS 3692,
I S 0 rnelric precision hexagon bolts, scre\va niid 111:'
screws iitiil 11111s.
BS 3643, ' IS0 mciric x r i c s threads,*. Pari 2, ' I.tniii\
tolerances for coursc pitch scrici threads
d l
lor gcncrul cnginccring piiriww4320, ~ ~ i wiislicrs
t ES 4190, ' I S 0 mciric black hexagon bolts,
.
--`,``-`-`,,`,,`,`,,`---
Copyright British Standards Institution
Provided by IHS under license with BSI
No reproduction or networking permitted without license from IHS
Not for Resale
B S I BS*4504:
PART*I,
b9
l b 2 4 b b 9 0277990 2
BS 4504 : Part i : It/!
-
1
7, HYDRAULIC TESTING OF FLANGES
This standard does not specify the hydraulic test pressures
for flanged pipes or components, details of which should
be obtained from the appropriate standards which
'
specify test pressures for pipes or components, but the
test pressure applied to the joint shall not exceed 1-5 times
the nominal pressure for the flanges.
A
*I
(2) Whether test certificates of .the material are
required.
(3) Details of bolting (if required) (see C l a w 5).
(4) Details of the machining for the attachment of
flanges (see Clause 6).
(5) Whether taper or parallel screwing is required (sce
6.2).
(a) Whether flanges are to
9. MARKING
Flanges made of alloy steel shall be clearly marked so that
the material from which the flange is made can be
identiRed, except that integral flanges need not be marked
where the component itself is marked.
--`,``-`-`,,`,,`,`,,`---
8. DETAILS TO BE SUPPLIED BY THE PURCHASER
WHEN ORDERING FLANGES AND/OR BOLTING
The following information shall be supplied by the
purchaser when placing an order or making an enquiry:
(1) Nominal size, nominal pressure, type of flange
(see flange tables) and material (see Tables A l and A2).
A
be machined (sec 4.2G4.3)
Copyright British Standards Institution
Provided by IHS under license with BSI
No reproduction or networking permitted without license from IHS
Not for Resale
E S 1 BS*4504:
P A R T * 3 69
3624669 0277993 4
--`,``-`-`,,`,,`,`,,`---
Copyright British Standards Institution
Provided by IHS under license with BSI
No reproduction or networking permitted without license from IHS
Not for Resale
a
BSI BS*q504: PART*KL 6 9 W L b 2 4 b b 9 0277992 b
f
--`,``-`-`,,`,,`,`,,`---
.&.-*-
--.--..
.
t
.*
LB
II
Copyright British Standards Institution
Provided by IHS under license with BSI
No reproduction or networking permitted without license from IHS
Not for Resale
PART*KL
69
3 6 2 4 b 6 9 0277993 B
=
--`,``-`-`,,`,,`,`,,`---
BSI B S * 4 5 0 4 :
12
Copyright British Standards Institution
Provided by IHS under license with BSI
No reproduction or networking permitted without license from IHS
Not for Resale
B S I BS*4504:
P A R T * 1 69
m
1624669 0277994 T
-. .....
m
....
<
.
t
+,
M
I'
--`,``-`-`,,`,,`,`,,`---
Copyright British Standards Institution
Provided by IHS under license with BSI
No reproduction or networking permitted without license from IHS
Not for Resale
BSI BS*4504: P A R T * L 69 m 1624669 O277995 L m
d
?i
:
w
14
--`,``-`-`,,`,,`,`,,`---
Copyright British Standards Institution
Provided by IHS under license with BSI
No reproduction or networking permitted without license from IHS
Not for Resale
BSI B S * 4 5 0 4 :
4
PARTUL 69
L b 2 4 6 6 9 0277996 3
4
BS 4504 :1969
i
I
--`,``-`-`,,`,,`,`,,`---
,
-
I
1
,
r
)r.
I5
Copyright British Standards Institution
Provided by IHS under license with BSI
No reproduction or networking permitted without license from IHS
Not for Resale
B S I BS84504:
PART*KL
69
L b 2 4 6 6 9 O277997 5
=
BS 4504 : 1969
Ø
TABLE B. SUMMAR / OF CC JTENTS
A i rlrrrrd Marrh. 1971
--`,``-`-`,,`,,`,`,,`---
Q
mm
li
6
8
10 j,
15
20
25
32
40
50
65
80
100
125 $
150 2
175
'200
250
300
350
400
450
3
3
A
500
600
--700
800.
900
lo00 7
1200 x
1400 X
1600 x
1800 x
2Ooox
2200
2400
2600
2800
3Ooo
3200
3400
3600
3800
4ooo
Copyright British Standards Institution
Provided by IHS under license with BSI
No reproduction or networking permitted without license from IHS
Not for Resale
~
BSI B S * 4 5 0 4 :
P A R T r 1 69
1624669 0277998 7
--`,``-`-`,,`,,`,`,,`---
ES 4504 : 1969
Copyright British Standards Institution
Provided by IHS under license with BSI
No reproduction or networking permitted without license from IHS
Not for Resale
BS 4504 :1969
TABLE2q2. STEEL WELDING NECK FLANGES
Nomind press& 2.5 bar (1 bar = 10' N/my .
NOTE, For nominal iIzes 10 to loo0 usa Tablo 6/2,
1
For weld
preparation see
B.S 2633 and B.S.2971or
B.C. 1821 and B.C.2640
--`,``-`-`,,`,,`,`,,`---
---"
I
1200
1400
1ôW
1800
2000
1220
1420
1620
1 m
2020
Copyright British Standards Institution
Provided by IHS under license with BSI
No reproduction or networking permitted without license from IHS
1375
1575
17%
1990
21%
26
26
26
26
26
M27
M27
M27
M27
M27
Not for Resale
32
36
40
44
48
30
30
30
30
30
L
1320
1520
1730
1930
2130
1245
1445
1645
1845
2045
1
I
16
16
20
20
22
16
16
16
16
16
BSI B S * 4 5 0 4 :
P A R T * 1 69
1624669 0278000 T
=
BS 4504 : 1969
TABLE 2.5/3. STEEL PLATE FLANGES FOR WELDING
Nominal pressure 2-5 bar (1 bar = lo8N/mv
NOTE. For nominal i h s IO to loo0 uso Table 6/3.
Nom.
size
1 200
1400
1600
1800
2000
1 220
1420
1 620
i a20
2 O20
1375
1575
1790
1990
2190
36
42
46
52
58
5
5
5
5
2090
5
M27
M27
M27
M27
M27
;
i
l
I
*/
36
32
48
30
30
30
30
30
1320
1520
1730
1930
2130
I
--`,``-`-`,,`,,`,`,,`---
I
'
1280
1480
1 690
i 890
Copyright British Standards Institution
Provided by IHS under license with BSI
No reproduction or networking permitted without license from IHS
Not for Resale
BSI B S * 4 5 0 4 :
PART*L b î
3b24bbî 0278003 3
I
BS 4504 :1969
TABLE 23/11. INTEGRAL*GREYCAST IRON FLANGES
Nominal prekure 2.5 bar (1 bar = 10' N/d)
NOTE.For nominal alzes 10 to loo0 usa Table 6/i 1.
#lu
4
k
fm.5
I
4
-1250
1452
1654
1856
2 056
8
8
10
10
10
6
6
6
6
6
2 340
2 540
2 740
2960
3 160
2868
3068
12
12
6
6
6
6
6
3 360
3 560
3 770
3 970
4 170
3 268
3 472
3 676
3 876
4 076
12
1375
1 575
1790
1990
2 190
30
30
32
34
34
1280
1 490
1 690
1 890
2090
5
5
5
5
5
2 200
2400
2800
3000
2 405
2 605
2 805
3030
3 230
36
38
40
42
42
2 295
2 495
2 695
2 910
3 110
3200
3400
3600
3800
4000
3 430
3 630
3 840
4 045
4 245
44
46
48
48
50
3 310
3 510
3 720
3 920
4 120
M27
M27
M27
M 27
M27
32
36
40
44
48
i
''
30
30
30
30
30
--`,``-`-`,,`,,`,`,,`---
IJOTE. A l t e r n a t i v e neck form, shown dotted, t o have a maximum d r a f t angle of 12'
Copyright British Standards Institution
Provided by IHS under license with BSI
No reproduction or networking permitted without license from IHS
r
1 320
1 520
1730
1930
2 130
1200
1400
1600
1800
2000
2600
A
Neck
Raked face
Nom
Not for Resale
12
12
12
12
BSI BS*4504:
PART*l 69
l b 2 4 b b î 0278002 3
BS 4504
TABLE 6/2. STEEL WELDING NECK FLANGES
Nominal pressure 6 har (1 bar = lo8N/m*)
I
For weid preparation SPG
B.S.2633and B.S.2971 or
B.S. 1821 and B.S.2640
as BDDI
mr
I
--`,``-`-`,,`,,`,`,,`---
J
I
,is olrrrcd
Aiirrrh, 1971
Nom.
SlZe
Hange
Pipe
0.d.
di
--
D
-~
b
h
Ralsec
4
- --
10
15
20
25
32
17.2
21.3
26.9
33.7
42.4
75
80
90
100
120
12
12
14
14
14
28
30
32
35
40.
35
40
50
65
80
100
48.3
6093
70-1
88.9
114.3
130
140
160
190
210
14
14
14
16
16
38
38
125
150
200
250
139.7
168.3
219.1
273
323.9
240
265
320
s'I5
440
18
18
20
22
22
48
48
355.6
406-4
45712
490
540
595
645
755
812.8
9 1414
1016
1220
1420
1 620
1 820
2 O20
300
350
400
450
.m
508
600
609g6
711.2
700
800
903
loo0
1 200
1400
1600
1800
2000
-
f
IC0
Bolting
--
Neck
DriUIi
--
No.
di
h
-M 10
M10
M10
M 10
M12
4
4
4
4
4
11
11
11
11
14
50
60
70
2
2
2
2
2
80
90
110
128
148
3
3
3
3
3
M12
M12
M12
M 16
M 16
4
4
4
4
4
14
14
14
18
18
1cO
3
3
3
M16
M 16
60
62
178
202
258
312
365
4
M16
M16
M20
8
8
8
12
12
18
18
18
18
22
22
22
24
24
24
24
62
65
65
68
70
70
415
465
520
570
670
775
4
4
4
4
5
5
M20
M20
M20
M20
M24
M24
12
16
16
20
20
24
n
975
1075
1175
1405
1Gx)
24
26
26
28
32
70
70
70
90
90
880
1080
1295
1510
5
5
5
5
5
M27
M27
M27
M30
M33
24
21
28
32
36
30
30
30
33
36
1830
2 045
2 265
34
36
38
1710
1 920
2 125
5
5
5
M33
100
110
40
44
48
36
39
42
_
I
_
35
38
42
45
55
90
--
50
980
3
-
di
M36
M 39
22
22
22
26
26
55
65
75
90
110
130
150
170
200
26
30
38
42
55
62
74
88
102
130
155
184
hi
r
-
-
6
6
6
6
6
4
4
4
4
6
7
8
9
10
10
6
6
6
8
1c
12
15
15
15
8
10
10
12
12
8
225
780
236
335
395
290
342
445
495
550
600
705
810
385
438
492
538
640
740
15
15
15
16
16
12
12
12
12
12
12
920
1560
842
942
1045
1248
1452
16
16
16
20
20
12
12
16
16
16
1 760
1 970
2 180
1655
1 855
2 058
20
20
25
16
16
16
1 O20
1 120
1340
15
21
Copyright British Standards Institution
Provided by IHS under license with BSI
No reproduction or networking permitted without license from IHS
Not for Resale
B S I BS*4504:
ils 4504
PART*l b î
= lb24bbî
0278003 5
: 1969
TABLE 6/3. STEEL PLATE FLANGES FOR WELDING
Nominal pressure 6 bar (1 bar = lo6 N/m*)
A i altrird
March, 1971
Drüüng
Nom.
aim
17.2
21.3
75
80
26-9
Co
33.7
42.4
100
120
12
12
14
14
16
48.3
60.3
76.1
88.9
114.3
130
140
160
190
210
16
16
16
18
18
139.7
168.3
219.1
273
323.9
240
265
320
375
440
350
400
355.6
450
457.2
500
600
700
609.6
711.2
490
540
595
645
755
860
1000
1200
1400
81243
914.4
1016
1 220
1420
975
1075
1175
1 405
1630
38
42
46
1600
1800
2000
1620
1820
2020
1830
2 045
2265
74
84
92
40
50
65
80
100
125
150
200
250
300
800
900
406 *4
508
I
35
40
50
60
70
80
90
110
No.
M10
4
M 10
4
4
4
4
M10
M10
M 12
4
~h
'
11
11
11
11
14
50
14
14
14
18
18
100
110
200
225
55
65
75
90
148
3
3
3
3
3
M12
M 12
M 12
M16
M16
20
20
22
24
24
178
202
258
312
365
3
3
3
3
4
M16
M16
M16
M16
M20
12
12
18
18
18
18
22
26
28
415
46
520
570
670
775
4
4
4
5
5
M20
M20
M20
M20
M24
M24
12
16
16
20
20
24
22
22
22
22
26
26
810
880
980
1080
1295
1510
5
5
5
5
5
M27
M27
M27
24
24
28
32
36
30
30
30
33
36
920
1 o20
1120
1340
1 560
1710
1 920
2125
5
5
5
M33
40
44
48
36
39
42
1760
1970
2 180
IZf?
30
30
32
34
56
66
1
22
Copyright British Standards Institution
Provided by IHS under license with BSI
No reproduction or networking permitted without license from IHS
2
2
2
2
2
I
4
M30
M33
M36
M39
4
4
4
4
8
8
8
130
150
170
280
335
395
445
495
550
600
705
--`,``-`-`,,`,,`,`,,`---
30
15
20
25
32
A
f
Not for Resale
BSI B S * 4 5 0 4 :
2624667 O278004 7
P A R T * 2 67
m
BS 4504 : 1965
TABLE 6/4, STEEL SCREWED BOSS FLANGES
, Nominal pressure 6 bar (1 bar = louN/rn')
Ali dimendom am In millimetres (exœpt tho inch nomlnal alzo column). Scmwd to ES 21, 'Pipo threads
'.
diameter
--`,``-`-`,,`,,`,`,,`---
- --- I
Nominal a h
b
mm
34
w
96
?4
94
1
1%
1%
2
2%
6
8
10
15
20
25
32
40
50
65
80
88.9
4
5
6
100
114.3
139.7
165.1
150
18
4
22
25
24
50
24
26
26
60
2
2
32
80
90
110
3
3
3
Ml0
M12
M12
Ml2
M12
4
70
16
16
34
128
40
44
44
3
3
3
3
M 16
M16
M16
M16
4
4
18
18
148
178
202
190
210
240
265
3
125
4
20
M10
M10
M10
M10
M10
14
14
14
14
14
Copyright British Standards Institution
Provided by IHS under license with BSI
No reproduction or networking permitted without license from IHS
160
No.
-
2
2
2
2
2
100
120
140
-
25
30
35
40
33.7
42.4
48.3
60.3
76.1
130
Bolting
f
-
10
10
12
12
14
26.9
-
4
65
70
75
80
90
10.2
13.5
17.2
21.3
I
Rihedface
-
.
h
18
18
20
28
Not for Resale
4
4
4
30
40
50
4
4
4
4
8
8
18
18
18
18
90
60
100
70
110
80
130
100
150
170
110
130
160
185
200
225
-
PART*:L 6'7
BSI B S * 4 5 0 4 :
= Lb24bb9
0278005 9
cS 4504 : 1969
TABLE 6/5. STEEL SLIP-ON BOSS FLANGES FOR WELDING
Nominal pressure 6 bar (1 bar = 10' N/m3
t
Nom.
size
Flange
N
N
6
10.2
8
10
13.5
15
20
17.2
21.3
26.9.
D
75
80
90
120
60.3
140
65
76.1
160
80
200
88.9
114.3
139.7
168.3
219.1
250
300
273
323-9
40
50
100
125
150
10
10
12
12
14
65
70
33.7
42-4
48.3
25
32
b
100
Bolting
h
18
18
20
20
24
f
dr
25
30
35
40
50
4
4
4
4
4
11
11
11
11
11
4
4
4
4
4
11
4
4
60
70
2
80
28
90
32
110
3
3
3
M 10
M12
M12
M12
M12
190
210
240
265
320
16
16
34
40
128
148
18
18
20
44
44
44
178
202
258
3
3
3
3
3
M16
M16
M16
M16
M1C
375
440
22
22
44
44
312
365
3
M 16
4
M20
a
-
2
-
--`,``-`-`,,`,,`,`,,`---
Copyright British Standards Institution
Provided by IHS under license with BSI
No reproduction or networking permitted without license from IHS
M 10
M10
M10
M10
MlO
24
26
26
130
Not for Resale
1
Y dl
2
2
2
2
2
14
14
14
14
14
I
Driülng
Boss
h
dl
40
15
18
22
25
30
40
- - ~ -
50
55
65
75
90
.
50
14
14
14
100
110
IO
14
130
100
8
8
8
18
18
18
18
18
150
170
200
225
110
130
160
185
280
240
12
12
18
22
335
395
295
355
-
60
80
1
BSI B S * 4 5 0 4 :
P A R T * & 69
Lb24669 0278006 O W
.
BS 4504 : 1969
TABLE 6/& STEEL LOOSE FLANGES FOR WELDED ON LAPPED PiPE ENDS
Nominal pressure 6 bar (1 bar = 10' N/m?
--`,``-`-`,,`,,`,`,,`---
.'
I.'
AI alrrrrd
.ilarrh, 1971
0
-Nom.
size
10
15
20
25
32
40
50
65
80
100
125
150
33
250
300
350
400
450
500
600
700
800
933
loo0
1 200
Flange
Pipe
0.d.
dl
D
b
10 .
10
10
12
12
Bolting
4
20
24
30
37
46
M 10
5
5
6
6
M10
M10
M 10
M12
4
4
4
4
4
11
11
11
11
14
50
55
65
G
M12
4
6
6
M 12
M12
M16
M16
4
4
4
4
M16
M16
M 16
M16
M20
M20
r
75
90
14
14
14
18
18
100
110
130
150
170
80
90
110
128
148
4
5
5
5
5
8
8
8
12
12
18
18
18
18
22
200
225
178
202
258
312
365
5
5
5
5
5
12
16
16
20
20
24
22
22
22
22
26
26
44s
495
8
8
8
M20
M20
M 20
M 24
M 24
415
465
520
570
670
775
6
6
6
6
6
6
8
8
8
10
M27
M27
M27
M30
24
24
28
32
30
30
30
33
920
1 O20
1 120
1340
880
6
6
6
8
12
12
12
14
14
52
65
81
94
119
139.7
168.3
219.1
273
323.9
240
265
320
375
440
14
14
18
20
24
145
174
225
279
330
355-6
406.4
457.2
26
30
32
32
36
40
362
426
465
516
618
720
8
8
711.2
490
540
595
645
755
860
812.8
914.4
1016
1 220
975
1075
1 175
1405
44
48
52
822
926
1028
€0
1 232
G
6
6
6'
8
8
8
8
-
Not for Resale
_y-
I
3
3
3
4
4
130
140
1M3
190
210
-
'4
max.
35
40
50
60
70
48.3
60.3
76-1
88.9
114.3
Copyright British Standards Institution
Provided by IHS under license with BSI
No reproduction or networking permitted without license from IHS
k
5
75
80
90
100
120
-
Pipe eod
Drllllag
No.
8 '
17.2
21.3
26.9
33-7
42.4
508
609.6
-
-
280
335
395
550
600
705
810
980
1080
1 295
BSI B S X 4 5 0 4 : P A R T 8 1 6 9
l b 2 4 6 6 9 0278007 2
=
BS 4504 : 1969
TABLE 6/& STEEL PLATE BLANK FLANGES
Nominal pressure 6 bar (1 bar = 10' N/m*)
NOTE. The two types of flanges shown are alternatives at the option of the manufacturer.
Form
Form B
C
As altrrrd
Marrh. 1971
__
~~
~
~~~
Drilling
Flange
Nom.
size
D
Bolting
4
4
14
14
14
18
18
1c3
110
130
150
170
M16
M16
M 16
M 16
M 16
8
8
8
8
12
18
18
18
18
18
200
225
255
M20
M20
M20
M20
M20
12
12
16
16
20
22
22
22
22
22
395
445
495
550
-
M 12
4
4
55
70
90
M12
M12
M16
M16
18
18
20
20
22
115
140
165
190
237
22
22
22
24
24
285
332
380
40
50
65
80
100
130
140
160
190
210
14
14
14
16
16
125
175
200
250
240
265
295
320
375
300
350
400
450
500
440
490
540
595
645
4
-
428
475
--`,``-`-`,,`,,`,`,,`---
Copyright British Standards Institution
Provided by IHS under license with BSI
No reproduction or networking permitted without license from IHS
!io
4
12
12 '
14
14
14 .
-
11
11
11
11
14
M10
M 10
M10
M 10
M12
75
'80
90
100
120
350
-
--
15
20
25
32
10
Not for Resale
-h
No.
b
4
4
4
4
*
4
I
1
I
55
65
75
90
250
335
600
BSI B S * 4 5 0 4 :
P A R T * 1 69
1624669 0278008
TABLE 6/11. INTEGRAL GREY CAST IRON FLANGES
Nominal pressure 6 bar (I bar 10' N/m*)
A r alirrrd
M u r c h , 1971
Xom.
she
10
15
20
25
32
Ralscd face
Flange
P
I
b
12
12
75
80
90
14
40
50
65
Drilling
Bolling
-- -k
da
---
Neck
No.
da
11
11
11
11
14
50
55
65
75
90
26
31
38
56
3
3
4
4
4
4
14
14
14
18
18
100
110
130
150
170
64
74
89
108
128
4
4
4
5
5
200
225
155
180
234
286
336
5
5
6
6
6
8
8
8
8
8
10
35
40
50
60
70
2
2
2
2
2
M10
M 10
M 10
M10
M12
4
4
3
3
3
3
3
M12
M 12
M12
M 16
M 16
4
4
4
4
4
r
47
x
100
190
210
18
18
80
90
110
128
148
125
150
200
250
300
240
265
320
375
440
20
20
22
24
24
178
202
258
312
365
3
3
3
3
4
M16
M16
M16
M16
M20
8
8
8
12
12
18
18
18
18
22
350
400
550
500
490
540
595
645
755
26
28
30
30
415
465
520
570
670
775
4
M 20
4
4
4
A120
5
M 24
M 24
22
22
22
22
26
26
445
495
550
5
12
16
16
20
20
24
705
810
390
442
492
546
646
748
880
980
1 080
1 295
1510
5
5
5
5
5
M 27
M27
M 27
M30
M33
24
24
28
32
36
30
30
30
33
36
920
1 O20
1120
1340
1560
852
954
1054
1 260
1466
10
10
10
10
12
1672
1876
2 082
2 290
2 494
12
15
15
15
18
2 696
18
18
18
18
20
ao
600
7co
800
900
loo0
1 200
1 400
1600
1 800
30
32
975
1075
1175
1 405
1630
i
34
36
40
44
:
M20
M20
4
4
280
335
395
600
2 200
2 400
1830
2 045
2 265
2 475
2 685
48
50
54
60
62
1710
1 920
2 125
2 335
2 545
5
5
5
6
6
M33
M 36
M39
M 39
M39
40
44
48
52
56
36
39
42
42
42
1760
1970
2 180
2 390
2 fi@?
2 893
soo0
3 200
3 400
2 905
3 115
3 315
3 525
3 735
64
68
70
76
80
2 750
2960
3 160
3 370
3 580
6
6
6
6
M45
M45
M45
M45
M45
60
64
'68
72
76
48
48
48
48
48
2 810
3 O20
3 220
3 430
3 640
3 106
3 314
3 520
3 m
3970
a4
3 790
6
M 52
80
56
3 860
3726
2OKJ
f
6
--`,``-`-`,,`,,`,`,,`---
Copyright British Standards Institution
Provided by IHS under license with BSI
No reproduction or networking permitted without license from IHS
Not for Resale
2600
2902
i
20
BSI B S * 4 5 0 4 :
P A R T 8 1 69
Lb24669 0278009 b
TABLE 6/12. MALLEABLE CAST IRON INTEGRAL FLANGES
Nominal pressure 6 bar (1 bar = 106 N/rna)
/A
--
1-
Rghedface
D
4
11
11
11
11
14
50
k
da
55
65
75
90
26
31
38
47
56
3
3
r
-__-
M12
4
80
90'
110
128
148
3
3
3
3
3
M12
M12
M12
M16
M16
4'
4
4
4
4
14
14
14
18
18
100
110
130
150
170
64
74
89
108
128
4
4
178
3
3
M16
M16
8
8
18
18
200
225
155
180
5
5
40
50
65
80
100
130
140
160
193
210
12
12
13
13
15
125
150
240
265
17
17
202
Copyright British Standards Institution
Provided by IHS under license with BSI
No reproduction or networking permitted without license from IHS
da
4
4
9
10
10
11
11
idOTE, Alternative nec!; foxpi,
No.
M10
M10
M10
M10
80
90
100
120
-
I
2
2
2
2
2
10
15
20
25
32
75
f
Neck
Drilling
Bolting
35
40
50
60
70
4
ehovtri Clotted, t o have a m a x i m u draft angle of 12'
...
Not for Resale
4
4
4
4
5
5
--`,``-`-`,,`,,`,`,,`---
a
h
I
Flange
Nom.
PART83 69
B S I BS84504:
m
3 6 2 4 6 6 9 0278030 2
m
TABLE 6/13. MALLEABLE CAST IRON SCREWED BOSS FLANGES
Nominal pressure 6 bar (1 bar = 10' N/m*)
All dimensions are in millimetres (except the inch nominal size column). Screwed to BS 21. ' Pipe threads *.
'+
Taper 1:6*25on diameter
As ulrerrd
Alurrh, 1971
Drilling
Bolting
1
1%
1%
2
236
10.2
13.5
17-2
21.3
26.9
65
70
75
80
90
33.7
42.4
48.3
60.3
76.1
88-9
114-3
139.7
165.1
25
32
40
50
65
9
10
10
15
15
17
17
19
100
120
130
140
160
11
11
12
12
13
20
22
22
26
31
190
210
240
265
13
15
17
34
40
44
8
a
'
M 10
M 10
M10
M 10
M10
M10
M12
M12
M12
M12
M16
M 16
M16
M16
--`,``-`-`,,`,,`,`,,`---
Copyright British Standards Institution
Provided by IHS under license with BSI
No reproduction or networking permitted without license from IHS
Not for Resale
No.
4
k
4
4
4
11
11
11
11
11
40
45
50
55
65
ia
22
26
32
38
75
4
4
4
4
4
4
4
11
14
14
14
14
100
110
130
46
56
63
77
92
4
4
8
8
ia
ia
18
18
150
170
200
225
106
132
160
185
90
IS 4504 : 1969
TABLE 10/2. STEEL WELDING NECK FLANGES
Nominal pressure 10 bar (1 bar = lo5N/m9)
NOTE. For nominal sizes 10 to 175 use Table 16/2.
For weld Dreoaration see
B . S . 2 6 3 3 ’ a n d B.S.2971 or
8.S. 1821 and B.S.2640
J as a m r o o r i a t e
1
I
k
D
4
size
D
-
4 1 ,lll~lt~d
Jiiiiuury
1972
-b
h,
--
Flnnge
Nom.
w
-f
-
Rslsed face
I
BolIlna
-
M 20
’
M20
M 20
i
219.1
273
323-9
355.8
406.4
457.2
340
395
445
505
565
615
24
26
26
26
26
28
62
68
68
68
72
73
268
320
370
430
482
532
3
3
4
4
M24
M 24
500
600
508
609-6
711-2
812.8
91444
670
780
895
1015
1115
28
28
30
32
34
75
80
80
4
M 24
90
585
685
800
905
95
1 005
5
5
5
5
h127
M27
M 30
M30
700
800
900
1016
1 220
1420
1620
1 820
loo0
1 200
1400
1600
1 800
1230
1455
1675
1915
2 115
34
38
42
46
50
95
115
120
130
140
2325
-
150
1110
1330
1 535
1760
1960
5
5
5
5
5
2170
5
I
No.
M20
I
i
’!
i
M36
hl 39
hl45
M45
i
h145
i
I
I
8
12
12
16 [
16 j
20
20
20
24
24
28
M33
!
Drilling
- I -
I
_----___-
200
250
300
350
400
450
4
4
,
28
32
36
40
44
;
‘
.
I
I
i
,
.
d,
I
i
22
22
22
22
25
26
1
I
i
I
h
Ncek
!TT
Ï
2 ,
r
-
295’
350
400
460
515
’
!
I
565
26 ’ 620
30
725
30
840
33 , 950
33 , 1050
’
’
.
235
292
344
385 1
440
493 ;
1
542
642
745
850
950
‘
I
;
i
‘
i
16 I 10
16 ! 12
12
16
16 . 12
13
1G
IG . II
I
16 , 12
18 ! 12
18 ! 12
18
12
20
12
’
i
36 : 1160
39
1380
42 ’ 15’30
48
1820
48
2020
1052
1255
1460
1665
1868
2230
2072
I
i
16
20
25
16
25 , 16
16
25
16
30
:
I
2000
I
2020
I
54
I
,
48
--`,``-`-`,,`,,`,`,,`---
Copyright British Standards Institution
Provided
by IHS under license with BSI
f
No reproduction or networking permitted without license from IHS
Not for Resale
48
30
1G
PART*3 b ï
B S I BS*4504:
m
3b24bbî 0278032 b
BS 504 : 1969
TABLE
lop.
STEEL PLATE FLANGES FOR WELDING
Nominal pressure 10 bar (1 bar = los N/m*)
NOTE. For nomlnnl sizes 10 to 175 use Tnblc M/3.
Nom.
yize
D
200
250
300
350
400
450
500
600
700
am
900
loo0
1 200
Fiange
I
l
Raked face
340
395
445
505
565
615
24
26
26
508
609.6
711.2
812.8
914.4
670
780
895
1015
1115
1016
12-20
i
1230
1455
No.
295
350
400
460
515
565
8
32
36
M20
M20
M20
M20
M24
M 24
20
38
42
46
52
56
585
685
800
905
1005
M24
M27
M27
M30
M30
20
20
24
24
28
33
M33
M36
28
32
39
62
74
I
1110
1330
I
5
--`,``-`-`,,`,,`,`,,`---
Copyright British Standards Institution
Provided by IHS under license with BSI
No reproduction or networking permitted without license from IHS
k
268
320
370
430
482
532
28
:
Bolting
b
219.1
273
323.9
355-8
406-4
457.2
Drilling
Not for Resale
I
16
16
620
725
840
950
1050
1160
1380
Ar n l t r d
Juniary 197:
I
BSI B S * V 5 0 V :
PART*<L 6 9
162Libbî 0278013 8 W
1969
TABLE 1015. STEEL SLIP-ON BOSS FLANGES FOR WELDING
Nominal pressurê 10 bar (1 bar = 10’ N/ma)
NOTE. For nominal sizes 6 to 65 mm inclusive uso Table 16/5.’
As alrrrrd
March, 1971
Nom.
ao
.
121
?i!:
I
Flange
D
Ralsedrace
Bolting
b
f
h
4
-
--`,``-`-`,,`,,`,`,,`---
88-9
114.3
139.7
168.3
219.1
200
220
250
285
340
u)
100
125
150
200
20
22
22
24
34
40
44
44
44
188
212
268
3
3
3
3
3
250
300
273
323.9
395
445
26
26
46
46
320
370
3
M 20
4
M20
Copyright British Standards Institution
Provided by IHS under license with BSI
No reproduction or networking permitted without license from IHS
-
138
158
I
--
Not for Resale
.
M16
M16
M16
M20
M20
Drilling
-No,
--I
8
8
8
8
8
4
18
18
18
22
12
I
1
--
160
180
210
240
295
118
140
168
350
400
292
344
195
247
~
~~
BSI B S * 4 5 0 4 :
PART*1 b î
1 6 2 4 b b î 0278014 T
TABLE 10/6. STEEL LOOSE FLANGES FOR WELDED ON LAPPED PIPE ENDS
Nominal pressure 10 bar (1 bar = 106 N/m*)
I L
!
,il
*edfor
4301
Nom.
sire
'
0.d.
dl
i
Finnge
Pipe
D
k
b
-
10
15
20
25
32
17.2
21.3
26.9
33-7
42.4
90
95
105
115
140
14
14
14
16
16
40
50
65
80
100
48.3
60.3
76.1
88.9
114.3
150
165
185
200
220
16
16
16
18
18
125
150
200
250
200
13907
168.3
219.1
273
323.9
250
285
340
395
445
18
18
20
22
26
M12
M12
M 12
M12
65
81
94
6
6
6
4
4
4
4
M 16
M 16
M 16
M20
Copyright British Standards Institution
Provided by IHS under license with BSI
No reproduction or networking permitted without license from IHS
1
DriUing
Not for Resale
4
4
a
I
l2
i
Pipeenà
$1
r
max.
14
14
14
14
18
60
65
75
85
100
40
45
58
68
78
3
3
18
18
18
18
18
110
125
145
160
180
88
102
122
138
158
4
5
5
5
5
18
22
22
22
22
210
240
295
350
400
188
212
268
320
370
5
5
5
5
5
I
I
3
4
4
-
--`,``-`-`,,`,,`,`,,`---
Ar olrrrrd
hlnrrh, 1971
BSI B S X 4 5 0 4 :
us 4504 :
Lb24669 0 2 7 8 0 3 5 L
P A R T U L 69
969
TABLE 10/8. STEEL PLATE BLANK FLANGES
Nominal pressure 10 bar (1 bar =I lo6N/ml)
NOTE 1. The two types of flanges shown arc alternatives al the option of the manufacture.
NOTE 2. For nominal shes 10 to 175 usc Table 16/8.
Form B
Form C
I5
As added
January
I972
200
250
300
350
400
450
I
670
190
237
285
332
24
26
26
26
26
28
I
28 .
428
M20
M20
M20
M20
M24
M24
475
M24
380
1
1
8
12
12
16
16
20
20
1
22
22
22
22
26
26
26
1
295
350
400
460
515
565
620
--`,``-`-`,,`,,`,`,,`---
500
340
395
445
505
565
615
Copyright British Standards Institution
Provided by IHS under license with BSI
No reproduction or networking permitted without license from IHS
Not for Resale
BSI B S * q 5 0 4 :
P A R T * L 69
Lb24669 027BOlb 3
BS 4504 ; 19U9
TABLE lO/ll. INTEGRAL GREY CAST IRON FLANGES
Nominal pressure 10 bar (i bar = 10' N/m*)
NOTE. For nominal sizes 10 to 175 use Table 16/11.
--`,``-`-`,,`,,`,`,,`---
Nom.
1
Raked face
mange
b
Li.
250
300
350
400
395
445
505
565
26
28
28
30
32
268
320
370
430
482
3
3
4
450
615
670
780
895
1015
32
34
36
40
44
532
585
685
800
905
4
5
5
5
1455
1675
46
50
56
62
68
1 005
1110
1330
1 535
1760
5
5
5
5
5
70
80
82
88
1960
2 170
2 370
2 570
2 780
94
100
300
3 210
500
600
700
800
1 200
1 400
1 800
2 m
2 200
2 400
2 GOO
2 325
2 550
2 760
2 960
2 800
3000
3 180 ;
3405 I
A
4
Bolting
74
I
Drilling
No.
22
22
Neck
k
4
240
292
342
396
448
8
8
8
10
r
8
M20
M20
M20
h120
Ai24
8
12
12
16
16
22
22
26
295
350
400
460
515
M24
M24
M27
M27
20
20
20
24
24
26
26
30
30
33
565
620
725
840
950
498
552
654
760
866
10
10
10
10
12
28
28
32
36
40
33
36
39
42
48
1 050
1160
1380
1590
1820
970
1 076
1 284
1494
1 702
12
12
15
18
18
5
5
6
6
6
48
48
56
56
56
2 020
2 230
2 440
2 650
2 850
1906
2 112
2 320
2 524
2 732
18
18
20
20
20
6
6
56
62
3 070
3 290
2 940
3 150
20
20
4
4
4
M30
M30
M 33
M36
M 39
M45
NOTE. Alternative neck form, shown dotted, t o have a maximum draft angle of 12'
Copyright British Standards Institution
Provided by IHS under license with BSI
No reproduction or networking permitted without license from IHS
Not for Resale
BSI BS*4504: PART*3 6 7
ils 4504
3624667 0278037 5
: 1969
TABLE 16/L INTEGRAL STEEL FLANGES
Nominal pressure 16 bar (1 bar = 10' N/rn2)
D
,iddid
i
b
3
3
3
3
3
M16
285
122
138
158
188
212
175
200
250
300
350
315
340
405
460
520
24
24
26
28
30
242
268
320
378
438
3
3
3
4
M20
400
450
580
32
34
36
40
42
42
490
550
610
725
795
900
4
640
715
840
910
1025
loo0
1 200
1400
1600
1 125
1255
1485
1685
1930
44
46
52
58
64
1800
2000
2 200
2 130
2 345
2 555
68
70
74
50
600
700
800
900
200
220
250
Copyright British Standards Institution
Provided by IHS under license with BSI
No reproduction or networking permitted without license from IHS
Drilling
Bolting
18
20
20
22
22
185
65
80
100
125
150
Jriiiuury 1972
Raised face
Fiange
Nom.
size
4
M16
M16
M16
M20
M20
M24
M24
M2.l
No.
d:
4
8
8
8
8
18
18
18
18
22
8
12
12
12
16
210
240
159
184
22
22
26
26
26
270
295
355
211
236
290
30
30
33
36
36
39
525
585
650
770
840
950
4
4
M27
M 27
k130
5
5
5
M33
h.133
M36
16
20
20
20
24
24
1000
1115
1330
1530
1750
5
5
5
5
5
M36
M39
M45
M45
M52
28
28
32
36
40
39
42
48
48
56
1 950
2 150
2360
5
5
6
M52
M56
M56
44
48
52
56
62
62
Not for Resale
r
*
'
448
554
660
760
664
10
10
10
10
12
12
1050
1170
1 390
1 590
1820
966
1070
1278
1488
1696
12
12
15
15
18
2 O20
2 230
2 440
1902
2 106
2 312
18
18
18
502
--`,``-`-`,,`,,`,`,,`---
NOTE. For nominal sizes 10 to 50 use Table 40/1.
1
BSI BS*95OY:
P A R T * 1 69
1624669 02780l18 7
BS 4504 : 1969
TABLE
16/2.
STEEL WELDING NECK FLANGES
Nominal pressure 16 bar (1 bar = 10' N/rn*)
For weld preparation see
EIS2633 and B.C.2971 or
. 8.C.1821 and B.S.2640
L( as appropriate
I
*
- - - - t - L t
VA
I
n,
D
Ar alirrrd
Slarrh, 1971
1-
Raked face
Nom.
size
L__
4
biting
--
1
Drilling
Neck
No.
-21 -3
26.9
337
42.4
40
50
65
80
100
1?5
150
175
200
250
300
350
400
150
500
600
700
800
300
loo0
1 200
1400
1 boo
1 800
2003
---
I
40
45
2
2
2
2
2
M12
M12
M 12
M 12
M 16
158
3
3
3
3
3
188
212
242
268
320
3
3
3
3
3
105
115
140
16
16
16
38
38
40
58
68
48.3
60.3
76.1
88*9
114.3
150
165
185
200
220
16
18
18
20
20
42
45
45
50
52
88
102
122
139.7
168.3
193.7
219.1
213
250
285
315
340
405
22
55
.
~
523.9
355.6
4064
457.2
508
609.6
711.2
812.8
914.4
1016
1220
1 420
1620
1820
2 O20
!
I
[
'
0
,
I
I
21
26
24
715
840
28
30
32
34
34
36
910
1025
1125
1255
1485
36
38
40
42
48
1685
1930
2 130
2 345
52
58
62
66
460
520
580
640
i
78
138
60
62
70
78
82
85
87
90
!
j
I
'
¡
378
438
490
550
610
!
1
I
4
4
4
1115
1330
145
1530
4
14
14
14
14
18
M16
M16
M16
M 16
M16
4
4
18
4
18
8
18
18
180
M16
M20
M20
M20
M24
8
8
8
18
22
22
23
26
210
240
270
295
355
156
184
210
26
26
33
36
410
470
525
585
650
770
4
8
12
12
ia
18
60
65
28
32
40
46
56
75
85
100
110
125
145
64
75
90
105
131
160
6
6
6
6
4
6
6
7
6
6
6
8
10
10
12
16
16
16
16
16
18
12
12
12
12
12
12
12
12
12
16
16
24
24
28
28
33
36
39
39
42
4a
a40
950
1050
1170
1390
755
855
955
1058
1262
18
20
20
22
5
5
M45
M 52
36
40
44
48
56
56
62
1590
1820
2020
1465
1668
1870
30
35
2230
2072
--48 -
.
8
8
344
390
445
496
548
652
M33
M36
M36
MJ9
M45
I
30
30
4
25
235
5
5
5
5
5
4
I
4
10
10
10
12
16
16
20
20
20
4
4
12
12
12
16
16
M24
M24
M27
M27
M30
M33
5
120
130
1
4
4
4
30
35
8
16
16
16
16
Not for Resale
January
AI added191
.
40
-
37
Copyright British Standards Institution
Provided by IHS under license with BSI
No reproduction or networking permitted without license from IHS
--`,``-`-`,,`,,`,`,,`---
lo
15
20
25
32
B S I BS*4504:
BS 4504
PART*L
69
= lb24669
0278037 9
=
: 1969
TABLE 16/3. STEEL PLATE FLANGES FOR WELDING
Nominal pressure 16 bar (1 bar 10' N/m*)
. .
Nom.
a h
0.d.
dl
D
Drilling
Ratted face
Flange
Pipe
Bolting
f
b
k
NO.
~
10
15
20
25
32
40
50
65
80
100
125
150
175
200
250
A i addcd
Junuary 1972
300
350
400
450
500
600
700
800
wo
loo0
1 200
60
M12
M12
M12
M12
M16
4
4
4
M16
M16
M16
M16
MIG
4
4
.4
8
8
18
18
18
18
18
110
102
122
138
158
3
3 .
3
3
3
22
22
24
24
26
188
212
242
268
320
3
3
3
3
3
M 16
M20
M20
M20
M24
8
210
8
12
12
18
22
22
22
26
460
520
28
32
378
4
4
36
40
44
52
4
M24
M24
M27
4
4
M27
M30
5
M33
12
16
16
20
20
20
26
26
30
30
33
36
410
470
580
438
490
550
610
725
795
900
lo00
1115
1330
5
5
5
M33
24
24
28
28
32
36
39
39
42
48
840
950
1050
1170
1 393
14
14
16
16
16
40
45
48a3
00.3
76.1
88.9
114.3
150
165
185
200
220
16
18
18
20
20
88
139.7
168.3
193.7
219.1
273
250
285
315
340
405
323.9
355-6
406.4
457.2
508
609-6
711.2
81243
914-4
1016
1220
910
1025
1 125
1255
1485
640
715
840
58
64
72
78
94
58
68
78
--`,``-`-`,,`,,`,`,,`---
Copyright British Standards Institution
Provided by IHS under license with BSI
No reproduction or networking permitted without license from IHS
14
14
14
14
18
2
2
2
2
2
90
95
105
115
140
17-2
21.3
26.9
33.7
42.4
Not for Resale
5
5
M36
M36
M39
M45
4
4
8
,
65
75
85
100
125
143
160
180
240
270
295
355
525
585
650
770
--
BSI B S * 4 5 0 4 :
PART*L
Lb24669 0 2 7 8 0 2 0 5
69
=
BS 4504 : i969
TABLE 16/4. STEEL SCREWED BOSS FLANGES
Nominal pressure 10 and 16 bar (1 bar = 106 Wm9
All dimendona are In milllmetres (except the inch nominal alza column). Screwed to BS 21, ' Pipa threads
*.
--`,``-`-`,,`,,`,`,,`---
diameter
AI afirrtd
hfarrh. 1971
I I.'
Nomlnal size
--in
I
mm
I
Flange
N
I
k
Ralsedface
D
b
75
80
12
12
14
14
16
18
18
20
20
24
8
94
10
w
w
1
1%
1%
2
2%
3
4
5
6
6
16
16
16
18
18
24
36
26
28
32
20
20
22
22
34
40
44
44
138
158
188
212
3
15
20
10.2
13.5
17.2
2163
26.9
25
32
40
50
65
33.7
42.4
48.3
60.3
76.1
115
140
80
100
125
150
88.9
114.3
139.7
165-1
200
220
250
90
95
105
150
165
185
285
I
-
32
38
40
45
--
3___-
~~
?4
?4
2
2
2
2
58
2
63
78
2
88
3
102
122
3
3
a
3
3
3
M10
M10
M12
M12
M12
4
4
4
4
4
11
11
14
14
14
M12
M16
M 16
M16
M16
4
4
14
18
18
18
18
M16
M16
M16
M20
8
8
' 8
8
18
18
18
22
4
4
4
50
55
60
65
75
85
100
110
125
145
160
180
210
240
20
25
30
35
45
52
60
70
85
105
118
140
368
195
39
Copyright British Standards Institution
Provided by IHS under license with BSI
No reproduction or networking permitted without license from IHS
Not for Resale
BSI BS*4504: PART*3 b î
I
l b 2 4 6 6 9 0278023 7
.IS 4504 : 1959
TABLE 16/5. STEEL SLIP-ONBOSS FLANGES FOR WELDING
Nominal pressure 16 bar (i bar = lO'N/m*)
eter
As alrrrrd
March, 1971
Nom.
alae
6
8
10
15
20
25
32
40
50
65
:!r Id.
10.2
13-5
17-2
21.3
26-9
48-3
60.3
76.1
100
125
150
200
88.9
114.3
139-7
168.3
219.1
250
300
273
323.9
80
115
140
150
165
185
16
16
16
24
26
26
18
18
28
2oos
340
20
20
22
22
24
34
40
44
44
44
405
460
26
28
46
46
220
250
285
I
TI
20
24
90
95
105
33.7
42.4
b
12
12
14
14
16
75
80
I
I
;tange
-
Drnllng
f
4
M10
MlO
Ml2
Ml2
M12
4
4
4
4
4
11
11
14
14
14
4
3
3
3
M12
M 16
M16
M16
M16
4
4
4
M16
M16
M16
M20
M20
8
8
8
8
260
3
3
3
3
3
12
320
3
378
4
M24
M24
12
12
2
32
2
2
2
2
45
58
68
78
88
102
122
138
158
188
212
2
2
40
--`,``-`-`,,`,,`,`,,`---
Copyright British Standards Institution
Provided by IHS under license with BSI
No reproduction or networking permitted without license from IHS
i
NO,
4
Not for Resale
4
Boss
It
50
20
55
25
60
65
75
30
35
45
14
85
52
18
18
18
18
100
110
60
70
125
145
105
85
n
€lQ
180
210
240
295
168
195
247
26
26
355
410
300
355
18
18
18
22
118
140
~
P A R T S 1 69
m
1624bb9 0278022 9
BS 4504 ; 1969
TABLE 16/& STEEL PLATE BLANK FLANGES
Nominal pressure 16 bar (i bar = IO8 N/m*)
NOTE. The two types of flanges shown aro altcmativts at the option of the manufacturer.
Form 0
Form C
icIi
k-+I
4
?
k
b
0
-P
Flange
Nom.
aim
b
10
15
2"
25
32
90
95
105
115
140
14
14
16
16
16
40
50
65
80
100
150
165
185
200
220
16
18
18
20
-20
250
22
22
24
24
26
125
150
175
200
250
300
350
400
450
500
I
1
285
315
340
405
460
520
580
640
715
28
30
32
34
36
k
55
70
90
115
140
165
190
237
285
332
380
428
475
M12
M 12
M12
M12
M16
4
4
4
4
4
4
M16
M16
M16
M16
M 16
14
14
14
14
18
-
60
65
75
85
100
4
8
8
18
18
18
18
18
110
125
145
160
180
M16
M20
M20
M20
M24
8
8
8
12
12
18
22
22
22
26
210
240
270
295
355
M24
M24
M27
M27
12
16
16
20
20
26
26
30
30
33 .
410
470
525
585
650
M30
4
I
--`,``-`-`,,`,,`,`,,`---
4
As addrd
i972
January
41
Copyright British Standards Institution
Provided by IHS under license with BSI
No reproduction or networking permitted without license from IHS
Not for Resale
ßS 4504
: 1969
TABLE 16/11. INTEGRAL GREY CAST IRON FLANGES
Nominal pressure 16 bar (1 bar = 106 N/ms)
Y
~
Size
I
4
4
4
2
2
M12
M 12
M 12
M12
M 16
102
122
138
158
3
3
3
3
3
M16
M16
M16
M 16
M16
4
4
4
188
212
242
268
320
3
3
3
3
3
715
32
36
38
40
42
378
438
490
550
610
4
44
4
4
840
910
1025
1125
1 255
48
54
58
62
66
725
795
5
5
5
5
5
14
14
16
16
18
40
45
58
68
78
150
165
185
200
220
18
20
20
22
24
125
150
175
200
250
250
26
26
28
30
32
300
460
520
10
15
20
25
32
90
95
105
115
140
40
50
65
80
285
315
340
405
350.
400
450
500
600
700
800
900
loo0
Neck
Bolting
6
D
100
l!&
Raked face
Flange
Nom.
580
640
.
88
\
900
loo0
1115
2
2
2
.
14
14
14
14
18
60
65
75
85
100
8
8
18
18
18
18
18
110
125
145
160
180
M16
M20
M20
M20
M24
8
8
8
12
12
18
22
22
22
26
210
240
270
295
355
M24
M24
M27
M27
M30
12
16
16
20
20
26
26
30
30
33
M33
M33
M36
M36
M39
20
24
24
28
28
36
4
4
36
39 .
39
42
217
246
298
8
8
10
410
470
525
348
10
585
510
564
10
12
672
764
870
976
12
12
12
12
650
770
840
950
1 050
1 170
NOTE. Alternative neck form, Bhown dotted, to have a maximum draft angle of 12'
42
--`,``-`-`,,`,,`,`,,`---
Copyright British Standards Institution
Provided by IHS under license with BSI
No reproduction or networking permitted without license from IHS
Not for Resale
-
TABLE 16/12. MALLEABLE CAST IRON INTEGRAL FLANGES
Nominal pressure 10 bar and 16 bar (1 bar 10' N]m')
Raised face
Fiange
size
--`,``-`-`,,`,,`,`,,`---
15
20
25
32
50
65
80
f
b
14
14
16
16
16
105
115
140
I
185
zoo
.
16
18
18
20
20
*
i 250
i
285
.
22
,
22
No.
I
48
h
14
14
14
14
18
60
65
75
85
100
110
125
145
160
180
80
95
114
136
5
5
6
6
210
240
165
190
8
8
40
45
58
68
78
2
2
2
2
2
M12
M12
M12
M12
M16
88
102
122
138
158
3
3
3
3
3
M16
M16
M16
M16
M16
4
1
8
8
18
18
18
18
18
188
3
3
M16
M20
8
8
18
22
I
125
150
Drilling
Boltlng
4
4
4
4
4
4
I
I
43
Copyright British Standards Institution
Provided by IHS under license with BSI
No reproduction or networking permitted without license from IHS
Not for Resale
BSI B S * 4 5 0 4 :
P A R T * 1 69
= 1624669
0278025 4
ß S 4504 :1969
TABLE 16/13. MALLEABLE CAST IRON SCREWED BOSS FLANGES
Nominal pressure 10 bar and 16 bar (i bar = 10' N/m*)
All dimcnslons aro In millimctns (except the Inch nominal sizo column). Screwed to BS 21, ' Pipe threads
*.
per I :6.25 on didmeter
?4
6
8
36
10
w
75
80
12
12
14
14
16
26.9
90
95
105
25
32
40
33-7
42.4
140
48.3
150
16
16
16
50
65
60.3
76.1
165
185
18
18
200
220
20
20
22
22
34
15
20
1
1%
1%
2
2%
w
10.2
13.5
17.2
21*3
3
80'
88.9
4
100
5
125
6
150
114.3
139-7
165-1
115
250
285
No.
4
24
M10
M10
M12
M12
M12
4
55
1 4 i 6 0 1 3 0
i 35
14
65
75
45
14
24
26
26
28
32
MI2
M16
M16
M16
M16
4
14
4
18
18
18
18
34
M16
M16
M16
M 20
8
8
8
8
18
18
20
20
40
44
44
44
Copyright British Standards Institution
Provided by IHS under license with BSI
No reproduction or networking permitted without license from IHS
1
Not for Resale
4
4
4
4
4
4
11
11
i
50
1
18
18
18
22
i
!
85
i
i
1:
-
100
110
125
145
150
180
210
210
'
i
52
60
70
118
140
! 168
I
195
--`,``-`-`,,`,,`,`,,`---
Boltlag
E S 1 BS*4504:
9s 4504
PART*L
69
= Lb24bbï
0278026 b
: 1963
TABLE W/l. INTEGRAL STEEL FLANGES
Nominal pressure 25 bar (1 bar = 10' N/rn*)
NOTE. For.nomlnal skes 10 mm to I50 mm use Table 40/1.
Nom.
Ar added
J a y a r y 1972
I
I
~
D
~~
Raised face
mange
f
b
175
200
250
300
350
330
360
425
485
555
28
30
32
34
38
248
335
395
450
3
3
3
4
4
400
450
620
670
730
845
960
lo85
40
42
44
46
50
54
505
555
615
720
820
930
4
4
4
5
5
5
1185
1 320
1530
1755
1975
58
62
76
84
1030
1140
1350
1560
1 780
2 195
2 425
90
96
1 985
2 210
500
600
700
800
900
1000
1200
1400
1600
1800
2000
70
278
M24
M24
M27
M27
M30
12
12
12
16
16
26
26
30
30
33
36
36
36
39
42
48
M33
16
M 33
20
M33
M36
M39
M45
20
20
24
24
5
5
5
5
5
M45
M 52
M 52
M56
M56
28
28
32
36
40
5
5
M64
M64
44
48
--`,``-`-`,,`,,`,`,,`---
Copyright British Standards Institution
Provided by IHS under license with BSI
No reproduction or networking permitted without license from IHS
Not for Resale
Neck
Drillhg
Bolting
i
k
dt
280
217
246
298
352
408
8
10
10
10
460
514
566
670
776
882
12
12
12
12
15
988
1094
1 306
1514
1726
15
18
18
18
20
1936
2 144
20
20
310
370
430
490
550
600
660
770
875
990
48
1090
62
62
1640
1860
r
--
8
10
ES 4204 : 1969
TABLE 25/2. STEEL WELDING NECK FLANGES
Nominal pressure 25 bar (i bar = lo5 N/m')
*
NOTE. For nominal siles 10 mrn to 150 m m use Table 40/2.
For weld preparation see
B.S. 2 6 3 3 and 8.S.2971 or
B.S. 1821 and B.S.264@
I
Raked face
Drilling
--Flange
---Bolting - D
b
No.
dc
f
da
-- --h l -
175
200
250
300
350
193.7
219.1
273
323.9
355.6
400
450
500
600
700
8íXl
900
loo0
330
360
425
485
555
28
30
32
34
38
75
80
100
406.4
620
40
110
457.2
610
42
110
508
609.6
711.2
812.8
730
845
960
1085
44
46
46
50
125
125
125
135
914.4
1016
1185
1320
54
58
88
92
145
155
-
248
278
335
395
450
505
555
615
720
820
930
1030
1140
M 24
M24
M27
M27
3
3
I
3
4
4
4
4
4
5
5
5
5
1
26
26
30
M30
12
12
12
16
16
M33
M33
M33
M36
M39
M45
16
20
20
20
24
24
36
36
36
39
42
48
28
48
56
M45
M52
28
-
30
33
Neck
-ha
%
-
280
310
370
430
490
218
244
298
352
398
18
20
550
452
20
600
505
558
U)
660
770
875
660
760
865
99(j
1090
1210
968
I
1070
15
16
18
r
10
10
12
12
12
20
20
20
22
12
12
12
12
12
12
24
12
January
As added192.
16
24
-
47
Copyright British Standards Institution
Provided by IHS under license with BSI
No reproduction or networking permitted without license from IHS
Not for Resale
--`,``-`-`,,`,,`,`,,`---
I
BSI B S * 4 5 0 4 :
PART*KL
bï
3b24bbï 0278028 T
ns 4504 : 1969
TABLE S/3. STEEL PLATE FLANGES FOR WELDING
NomInal pressure 25 bar (1 bar = 10' N/m3
NOTE For nominal rizcs 10 m m lo 1Mm m use Table 40/3.
Nam.
Site
Ar added
Jitnuary 1972
P
o
rl
4
hlsed face
Flange
D
b
r,
26
300
350
2.8
32
38
42
248
278
273
323.9
355.6
330
360
425
485
555
400
406.4
620
46
450
457.2
508
670
52
58
175
193.7
200
250
219-1
500
600
õO9.6
730
845
66
I
335
395
450
4
4
505
555
615
720
4
--`,``-`-`,,`,,`,`,,`---
48
Copyright British Standards Institution
Provided by IHS under license with BSI
No reproduction or networking permitted without license from IHS
r
3
3
3
Not for Resale
4
4
Drillhg
Bolting
-k
M24
M24
M27
M27
M30
!
'
1
M33
M33
M33
12
16
16
30
33
36
280
310
370
430
490
550
Mjo
660
770
-
ES1 B S * 4 5 0 4 :
PART*l
69
=
Lb24669 0278029 1
BS 4504 : 1969
TABLE 25/5. STEEL SLIP-ON BOSS FLANGES FOR WELDING
Nominal pressure 25 bar (1 bar = 10' N/m3
eter
I
lange
D
Rsbedface
--
Boss
h
b
~~
6
20
10.2
13.5
17.2
21.3
26.9
25
32
40
50
65
33.7
42.4
48.3
60.3
76.1
a
10
15
75
ao
90
95
105
115
140
150
165
ia
20
20
22 1
22
26
;i
32
38
40
45
58
2
2
2
.2
2
M 10
i
M 12
38
122
2
2
3
3
3
300
360
24
24
26
28
32
40
44
48
52
52
138
162
188
218
278
3
3
3
3
3
425
40
48
60
335
395
3
485
185
250
235
no
Copyright British Standards Institution
Provided by IHS under license with BSI
No reproduction or networking permitted without license from IHS
14
14
16
16
ia
18
18
20
22
-
67
102
I
I
4
-
Not for Resale
M10
M12
M 12
M12
M16
M 16
M16
M16
M16
M26
M24
M24
M24
4
4
4
4
4
11
11
14
14
14
50
55
60
4
4
4
4
14
85
100
110
125
145
a
a
a
a
a
12
18
18
ia
18
ia
22
26
26
26
65
75
160
190
220
250
310
370
430
20
25
30
35
45
--`,``-`-`,,`,,`,`,,`---
As alrrrrd
hiarch. 1971
52
60
70
85
105
118
145
170
200
256
310
364
1
ES1 BS*4504: P A R T * I 6 9
l b 2 4 b b î 0278030 8
DS 4504 : 1969
TABLE ZS/8. STEEL PLATE BLANK FLANGES
Nominal pressure 25 bar (1 bar = los N/m')
NOTE 1. Thc twu -.ypes o f flango shown are altcrnativcs at thc option o f thc manufacturer.
NOTE 2. For nomi' QI
sizes 10 inm to 150 mm usc Table 40/8.
Form C
Form B
b
Nom.
size
250
300
350
400
Ar added
January 1972
Flange
237
332
555
450
620
670
500
730
40
42
45
--`,``-`-`,,`,,`,`,,`---
Copyright British Standards Institution
Provided by IHS under license with BSI
No reproduction or networking permitted without license from IHS
Not for Resale
M30
12
16
16
26
26
30
30
33
280
310
370
430
490
E S 1 BS*4.504: P A R T * 3 69
3624669 0278033 T
m
BS 4504 : 1969
-
k
--`,``-`-`,,`,,`,`,,`---
TABLE 25/11. INTEGRAL GREY CAST IRON FLANGES
. Nominal prcssurc 25 bar (1 bar 10' N/m3
U
dirrrd
\/tirch. I Y I I
Ai
Nom.
Flange
Neck
15
20
25
32
115
140
40
15@
50
80
100
155
ia5
200
235
125
150
GS
100
M16
M 16
M 16
18
18
18
18
110
70
5
125
84
6
145
160
101
6
120
22
190
142
6
6
26
26
220
171
6
250
202
8
12
12
12
26
280
223
26
30
310
370
252
304
10
10
10
360
10
490
416
12
615
20
30
33
36
36
36
430
555
16
16
16
20
28
162
270
30
188
399
34
175
203
250
330
360
34
34
425
3G
218
248
278
335
303
435
40
395
/5\
WOT!3.
M 12
aa
138
503
4
18
102
122
670
733
30
hí16
26
400
4 50
P
37
44
cd
62
68
20
J8
3
3
3
M16
M20
M24
M 24
M24
M24
M27
4
M27
hí 30
M33
85
a
a
a
B
8
4
5
5
5
l2
550
600
660
As addt.d
January 1972
578
15
Alterh&tAve neck r'orm, ehown ùotted, t o have a maximum àraft angle of 12''
I
Copyright British Standards Institution
Provided by IHS under license with BSI
No reproduction or networking permitted without license from IHS
.
..
Not for Resale
'
BSI B S X 4 5 0 4 : P A R T X L b 7 m L b 2 4 b b 9 0 2 7 8 0 3 2 L m
ES 4504 : 196Y
TABLE 25/12. MALLEABLE CAST IRON INTEGRAL FLANGES
Nominal pressure 25 bar (1 bar = IO6 Nlm')
Neck
Nom.
I
Si20
da
r
~~
10
15
20
25
32
90
95
105
115
140
40
50
65
80
100
125
150
16
16
18
18
18
40
45
58
68
78
150
165
185
200
235
18
20
22
24
24
I 8 8
1P2
122
138
162
3
3
3
3
3
270
300
26
28
188
218
3
3
]
2
2
I
I
I
NOTE.
4
4
M12
M16
4
M16
M16
M16
M16
M20
4
4
8
8
8
M24
I
A.%
4
4
M12
M24
1
1
I
I
18
I ;:
18
22
26
26
.
60
65
75
85
100
14
14
14
14
18
125
145
1
220
250
4
44
5
I
70
84
101
120
143
171
202
1
i
I
5
6
6
6
8
Alternative neck form, show dotted, t o have a maximum draft angle of 12'.
52
--`,``-`-`,,`,,`,`,,`---
Copyright British Standards Institution
Provided by IHS under license with BSI
No reproduction or networking permitted without license from IHS
Not for Resale
BSI BS*4504: P A R T m L b7
l b 2 4 b b 7 0278033 3
=
BS 4504 : 1969
-
TABLE 25/13. MALLEABLE CAST IRON SCREWED BOSS FLANCIES
Nominid pressum 2S bar (1 bar 10' N/m?
All dlmcniloni ira In milllmircs (oxcapt tho inch nomlail Jrs column). Screwed to 8s 11, ' Pl# thraadr '.
er 1:6*25 on dldmetcr
~
0.r I
PI
-6
8
10
15
20
10.2
13.5
i7.a
21.3
26.9
25
32
40
424
48.3
50
60.3
65
764
33.7
75
80
90
95
105
115
140
150
165
185
80
88.9
200
100
125
150
1144
139-7
165.1
2.35
270
300
b
No.
4
14
14
16
16
18
4
4
4
11
11
14
14
14
50
55
14
18
18
18
18
a5
100
110
125
145
18
Ml2
4
4
60
65
75
22
38
Ml2
M16
M16
M 16
M16
24
24
40
M 16
8
18
44
8
. 2 2
160
190
26
48
M20
M24
28
52
Ma4
8
8
26
26
a50
18
18
20
2.8
30
33
34
4
4
4
4
8
220
20
25
30
35
--`,``-`-`,,`,,`,`,,`---
Nominal atze
45
52
60
70
85
105
118
145
170
200
53
Copyright British Standards Institution
Provided by IHS under license with BSI
No reproduction or networking permitted without license from IHS
Not for Resale
BS 4504 : 196'1
--`,``-`-`,,`,,`,`,,`---
TABLE 40/1. INTEGRAL STEEL FLANGES
Nominal pressurc 40 bar (i bar = 10' N/m')
Drilling
Nom.
612C
r
10
15
20
25
32
2
2
2
2
2
1
M12
1
4
M 12
M 12
I
4
M16
4
14
14
14
14
18
60
65
75
85
100
30
37
44
53
60
4
4
18
18
18
18
22
110
125
145
160
190
68
80
99
116
136
5
5
6
6
6
220
.165
192
223
252
a
5
5
5
I
65
80
100
185 ;
200
235
22
24
24
i22
138
162
125
150
175
200
250
270
300
350
375
I
26
28
32
34
38
188
218
260
285
345
3
3
3
3
3
M 24
M24
M27
M27
300
350
515
410
4
M30
4
4
M33
'4
5
M39
M45
50
I
450
Ii
42
I
A p::
700
995
800
900
loo0
1 200
1250
1360
1575
64
76
'
80
1180
88
I 1380
f
I
1 400
1795 '
1600
2025
NOTE.
a40
i
I
A
M 16
3
3
3
3
3
40
98
108
5
I
i
i
4
4
M16
M16
a
a
M16
M20
8
a
a
12
12
26
26
30
30
33
16
16
16
20
20
33
36
39
42
48
24
ia
M30
M36
ri36
AO
M52
24
20
5
M 52
28
5
M56
31
48
56
56
56
62
5
M56
36
62
M64
40
70
M45
M 52
250
308
8
10
10
10
450
510
585
670
795
364
420
476
578
690
12
12
12
15
15
5a6
IA
900
1050
18
18
18
1250
1460
796
908
1014
1120
1332
1680
1900
1548
1763
295
320
305
610
1 x40
20
20
20
20
Alternative neck form, sham dotted,'to have a maximum draft ongle of .'21
55
Copyright British Standards Institution
Provided by IHS under license with BSI
No reproduction or networking permitted without license from IHS
Not for Resale
~
BSI B S * 4 5 0 4 :
P A R T * 1 69
1624669 0278035 7
BS 4504 : 1969
TABLE 40/ZSTEEL WELDING NECK FLANGES
Nominal pressure 40 bar (1 bar = 10' N/m')
1
Nom.
size
Fînnge
P h
0.d.
1 ~atsedface Doltlng
I
--
dl
hi
10
15
20
25
32
17.2
21.3
26.9
33.7
42.4
35
38
40
40
42
40
45
58
68
78
40
50
65
80
100
48.3
60.3
76-1
88*9
114-3
150
165
185
200
235
18
20
22
24
24
45
48
52
58
65
102
122
138
162
125
150
175
200
250
139.7
168-3
193.7
219.1
273
270
300
350
375
450
26
28
32
34
38
6û
75
82
88
105
188
218
260
300
350
323.9
355.6
406.4
515
580
508
w7-A
755
42
46
50
52
115
125
135
140
410
465
535
615
6B5
50
135
560
660
For weld preparation see
8.S.2633 and 8.S.2971 or
8.S. 1821 and B.S.2640
I--d: I
2
2
M12
M12
k112
M12
M16
14
14
14
14
18
60
65
75
85
100
28
32
40
46
55
3
3
3
3
3
M16
F.416
M16
M16
M20
18
18
110
125
145
160
190
64
75
90
105
134
10: 5
12 j 8
12 : 8
3
3
3
3
3
M24
M24
M27
M27
hI30
26
26
30
30
3 3 3
220
250
295
320
8 5
162
192
218
244
306
12
12
15
16
18
4
M30
M33
M36
M39
33
36
39
42
450
510
585
670
362
4oa
462
562
18
20
20
20
12
12
500
20
IL
No.
da
88
285
345
Neck
k
2
2
a
4
4
4
it.
56
--`,``-`-`,,`,,`,`,,`---
Copyright British Standards Institution
Provided by IHS under license with BSI
No reproduction or networking permitted without license from IHS
Drilling
Not for Resale
M 36
I
8
8
12
12
12
-
16
16
16
20
20
,
I
6
6
6
6
6
. 4
4
1 4
; 4
1 6
7 :
8
.
6
6
!
:
8
10
10
10
12
12
12
BSI B S * 4 5 0 4 :
P A R T * 1 69
m 1624669 0278036
9
m
BS 4504 : 1969
TABLE 4/3. STEEL PLATB FLANGES FOR WELDING
Nominal pressure 40 bar (1 bar = 10' N)m3
--`,``-`-`,,`,,`,`,,`---
Drillhg
Nom.
size
f
I
11
~~
10
15
20
25
32
40
50
65
1712
22.3
26.9
33.7
42.4
90
95
105
115
140
16
16
18
18
18
150
165
185
68
78
2
2
2
2
2
235
2 0 '
20
22
24
26
88
102
122
138
162
3
3
3
3
3
30
32
34
42
218
260
3
3
3
3
100
48.3
60.3
7611
88.9
114.3
125
150
175
200
250
139.7
16813
193-7
219.1
273
270
300
350
375
450
300
350
323.9
355.6
406.4
508
515
580
660
755
b 83-
80
fA P E
WO
(t57'A
Copyright British Standards Institution
Provided by IHS under license with BSI
No reproduction or networking permitted without license from IHS
'
200
40
45
58
285
345
Not for Resale
M12
M12
M12
M12
M16
4
4
4
4
4
~
60
65
75
14
14
14
14
18
85
100
18
18
18
18
22
110
125
145
160
190
M16
4
M 16
M16
M16
M20
4
8
8
8
M24
M24
M27
M27
M30
8
8
12
12
12
26
220
26
30
30
33
250
16
16
16
20
33
36
39
42
450
510
AO
39
610
295
320
365
585
670
--
1624663 0278037
-- O
BSI. BSa4504: P A R T * L 69
=
BS 4504 :1969
-
EL SCRkWED BOSS FLANGES
Nominal p'css&'25 biV and 40 bar (1 bar 10' N/m?
TABLE
All dlmonsionr
I.'
k
0
4
c
--`,``-`-`,,`,,`,`,,`---
I
b
-
3
4
5
6
80
100
125
150
88.9
114.3
139.7
365.1
200
235
270
300
f
-
Rilsedîaee
No.
.~
I
4
I,
k
11
11
14
14
14
50
55
60
65
75
20
25
30
35
45
14
14
16
16
18
2
2
2
2
2
M10
Ml2
Ml2
M12
4
4
4
4
4
18
18
18
20
22
2
2
3
3
3
Ml2
M16
M 16
M16
M 16
4
4
4
4
8
14
18
18
18
18
85
100
52
110
125
145
70
85
105
3
3
3
3
M16
M20
M24
M24
8
8
18
22
26
26
160
190
220
250
118
145
170
24
24
26
28
40
44
48
52
138
162
188
218
58
Copyright British Standards Institution
Provided by IHS under license with BSI
No reproduction or networking permitted without license from IHS
Boss
Bolt Inp
Not for Resale
-
M 10
8
8
I
60
200
BSI B S * 4 5 0 4 :
PART*<L b î
1624669 0278038 2
=
ES 4504 : 1969
TABLE 4015. STEEL SLlP-ON BOSS FLANGÈS FOR WELDING
Nominal pressure 40 bar (1 bar 10' N/m9 '
.
I
iter
R a W face
Nom.
size
--
D
b
i
Bolting
f
M10
M10
M12
M12
M12
11
11
14
14
14
50
55
60
65
75
20
25
14
18
18
18
18
85
3
3
M12
hí 16
M16
M16
M16
100
110
125
145
52
60
70
85
105
138
162
188
218
285
3
3
3
3
3
M16
M20
M24
M24
M27
8
8
8
8
12
18
22
26
26
160
190
220
118
145
170
250
200
30
320
260
345
410
3
M30
M30
12
16
33
33
385
450
320
380
45
2
2
2
2
58
2
6
8
10
15
20
10.2
13.5
17.2
21.3
26.9
75
80
90
95
105
14
14
16
16
18
20
20
32
38
22
22
26
40
25
32
40
50
65
33-7
42.4
48.3
60.3
76.1
115
140
150
165
185
18
18
18
20
22
28
30
32
34
38
68
78
88
102
122
2'
2
3
80
100
125
150
200
88-9
114.3
139*7
168.3
219.1
200
235
270
300
375
24
24
26
28
32
40
44
48
52
52
250
300
273
323.9
450
515
40
48
60
67
--
4
Y)
35
45
59
--`,``-`-`,,`,,`,`,,`---
Copyright British Standards Institution
Provided by IHS under license with BSI
No reproduction or networking permitted without license from IHS
Not for Resale
BSI BS*4504:
PART*& 6 9 W 3b24bb9 0 2 7 8 0 3 9 4
=
BS 4504 : 1969
TABLE
'STEELPLATE BLANK FLANGES
Nomlrial pressure 40 bar (1 bar = IO5 N/m*)
.
NOTE The two types of flanges shown am alternatives at the option of the manufacturer.
. .
Form
Form B
C
b
10
15
20
25
32
140
18
50
65
150
165
185
80
200
100
235
18
20
22
24
24
125
150
175
200
250
270
300
350
375
450
300
350
515
40
n
I
580
660
755
6SS
M12
M12
M12
M 12
M16
-
18
4
4
8
8
8
18
18
18
18
22
110
125
145
160
190.
70
90
M16
M 16
M 16
M 16
M20
26
28
32
34
38
115
140
165
190
237
M24
M24
M27
M27
M30
8
' 8
12
12
12
26
26
30
30
33
220
250
295
320
385
42
46
285
50
380
475
M30
M33
M36
M39
16
16
16
20
33
36
39
42
450
510
585.
670
+A 5%
m36
020
39
6I O
.
56
54.
55
332
-
60
--`,``-`-`,,`,,`,`,,`---
Copyright British Standards Institution
Provided by IHS under license with BSI
No reproduction or networking permitted without license from IHS
4
60
65
75
85
100
Not for Resale
*
~
BSI B S * 4 5 0 4 :
PART*l
Lb24669 0 2 7 8 U 4 0 O
69
BS 4504 :1969
TABLE 64/1. INTEGRAL STEEL =ANGES
Nominal pressure 64 bar (1 bar = 10' N/rn')
NOTE.For nomlnd iIzcs 10 m m to 40 mm use Table 160/1.
I I .L
I-
I
Nom.
b
30
34
102
122
138
162
188
3
3
3
3
3
M20
M20
M20
M24
M27
36
40
42
46
52
218
260
285
345
410
3
3
3
M30
50
65
80
100
125
200
250
300
345
375
515
470
530
I
I
Neck
Drlulng
Flange
n
h
150
175
-il I
4
k
I
4
M33
M33
M33
No.
4
h
4
22
135
360
170
a
n
8
8
8
22
26
30
8
12
12
12
16
33
33
36
36
36
105
122
146
5
5
5
5
280
6
310
345
400
460
264
320
378
8
8
8
10
200
gr)
240
I
1
350
400
500
600
670
800
600
700
930
1045
56
60
68
76
84
800
1165
1285
1415
1665
92
98
108
126
900
loo0
1200
c-.
2
465
535
615
735
840
4
960
1070
1180
1380
16
16
20
20
4
M36
M39
M45
M 52
M52
4
4
4
4
M56
M56
M64
M72
4
4
4
24
39
42
4a
56
56
525
585
705
820
935
434
490
602
714
826
10
12
12
15
15
24
28
28
32
62
62
70
70
1050
1170
1 290
1 530
938
1048
1 162
1390
18
18
18
18
NOTE Alternative neck form, shown dotted, to have a maximum draft angle of 12'
62
--`,``-`-`,,`,,`,`,,`---
Copyright British Standards Institution
Provided by IHS under license with BSI
No reproduction or networking permitted without license from IHS
Not for Resale
TABLE 64/2. STEEL WELDING NECK FLANGES
Nominal pressure 64 bar (1 bar = 10' N/mp
NOTE For nomInal shes 10 mm to 40 mm uso Table lW/2.
I
1
f
I
',!a:
Nom.
size
100
125
150
175
200
250
300
350
400
L
,
(
as appropriate
n
I Rnlsedface
b
f
hl
4
~
dl
D
60.3
76-1
88.9
1144
139.7
180
205
215
250
295
26
26
28
30
34
62
68
72
78
168.3
193.7
219-1
273
323.9
345
375
415
470
530
36
40
42
46
52
95
105
110
125
140
355.6
406.4
600
670
56
60
150
160
88
f
I
k
Flange
--,
50
65
80
For weld preparation sec
B.S.2633 and 0.S.2971or
8.S. 1821 and B.S.2640
Neck
Drluiog
Bolthg
No.
4
-
c
4
c
-
102
122
138
162
188
3
3
3
3
3
M20
M20
M20
M24
M27
4
8
8
8
8
22
22
22
26
30
135
160
170
200
240
82
98
112
138
168
10
12
12
12
12
6
6
8
8
8
218
3
3
3
3
Ai30
33
33
36
36
36
202
310
345
400
460
228
256
4
8
12
12
12
16
280
M30
M33
M 33
M33
316
372
12
16
16
18
18
10
10
10
12
12
4
4
M36
M39
16
16
39
42
525
420
475
20
20
12
12
260
285
345
410
465
535
.
585
--
.
63
--`,``-`-`,,`,,`,`,,`---
Copyright British Standards Institution
Provided by IHS under license with BSI
No reproduction or networking permitted without license from IHS
Not for Resale
BsI B S * 4 5 0 4 :
PART*L
Lb24669 0 2 7 8 0 4 2 4
69
rn
BS 4504 :1969
-
TABLE 64;3. STEEL PLAm FLANGES FOR WELDING
Nominal pmm 64 bar (1 bar 10' N/m3
N O ï Z For nodoal rtes 10 m m to 40 mm uso Table 100jJ.
'ofr
350
400
i
D
1
Fiange
;
I
k
Raisedfao
b
26
102
d.
26
30
122
138
162
188
114.3
139-7
250
295
32
34
168.3
393.7
219.1
273
323.9
345
375
415
470
530
36
40
46
54
62
218
72
78
465
535
260
285
345
410
c
Copyright British Standards Institution
Provided by IHS under license with BSI
No reproduction or networking permitted without license from IHS
Not for Resale
I,
i
I
milling
Bolting
~
M20
3
3
3
3
M20
M20
M24
M27
4
8
8
8
k
22
22
22
170
26
200
135
160
240
3
3
3
3
4
M30
280
M30
310
345
M33
460
4
M36
M39
525
585
4
M33
M33
400
-
--`,``-`-`,,`,,`,`,,`---
I
ES1 B S * 4 5 0 4 :
PART*1 69
= 1624669
0278043 b
BS 4504 ; 1969
TABLE 64/4. STEEL SCREWED BOSS FLANGES
Nominal pressure 64 bar (1 bar = 10' N/m3
Ali dimensions m fn miilirnctrcs (except tho Inch nominal atz0 column). Screwed to BS 21, ' Pipe threads
NOTE. For nominal sizes % in to 1% in uso Tabla 10014.
*.
--`,``-`-`,,`,,`,`,,`---
diameter
Flange
Raked face
--
50
65
60.3
76-1
80
100
88.9
125
114.3
139.7
180
205
215
250
295
26
26
28
30
34
36
40
44
52
56
102
122
138
162
188
3
3
3
3
3
M2û
M20
M2û
M24
M27
4
8
8
8
8
6
150
30
165.1
I 3 3
Copyright British Standards Institution
Provided by IHS under license with BSI
No reproduction or networking permitted without license from IHS
Not for Resale
3
22
I
17
Boss
No.
-
D
b
h
da
f
-
2
2%
3
4
5
I
Drilling
Bolting
185
I
2ao
I
215
BSI B S * 4 5 0 4 :
PART*KL
bî
m' L b 2 4 6 6 9
0278044 8
BS 4504 : 1969
TABLE lOO/l. INTEGRAL STEEL FLANGES
Nominal pressure 100 bar (1 bar = 10' N/m')
NOTE. For nominal s h r 10 mm to 100 mm uso Table 160/1.
I
I l k
I It'
-I Bolting
iise
r
125
150
175
200
250
315
355
385
430
505
I
'U I
d4
Raked face
Flange
Nom.
d I I
Y
40
44
48
52
60
188
218
260
285
345
3
3
3
I
M30
M33
M36
No.
8.
12
12
12
12
6
6
360
430
36
39
8
8
278
340
8
--`,``-`-`,,`,,`,`,,`---
!
600
585
655
715
870
990
68
74
78
94
104
410
465
535
615
735
700
1145
120
840
300
350
400
500
A
NOTE.
4
4
4
4
4
M39
M45
M45
M52
M56
10
10
12
16
16
16
20
20
24
15
15
70
i
1020
860
i
i
18
Alternative neck form, shown dotted, t o have a maximum draft angle of 12'
66
Copyright British Standards Institution
Provided by IHS under license with BSI
No reproduction or networking permitted without license from IHS
Not for Resale
B S I BSW4504:
PART*L
Lb24669 0 2 7 8 0 4 5 T
69
BS 4504 : 1969
TABLE lûû/2.. STEEL WELDING NECK FLANGES
Nominal piessure 100 bar (I bar = 10' N/rn*)
For weld preparation see
B.S. 2633 and B.S.2971 or
B.S. 1821 and B.S.2640
I
Nom.
size
10
15
20
25
32
40
50
65
ao
100
125
150
175
200
250
300
-
0.d.
dt
D
b
17.2
21.3
26.9
33.7
42.4
100
105
130
140
155
20
20
22
24
24
45
45
58
58
60
48-3
60.3
76-1
88.9
114.3
170
195
220
230
265
26
28
30
32
36
62
68
76
78
139.7
16803
19307
219-1
273
,
315
355
385
40.
44
48
105
115
127
1i 505
323.9
355.6
i
585
,655
1
I
90
130
157
Ge
'
74
170
189
45
58
68
78
2
2
2
2
2
I
I
Neck
ha
x
--
No.
-
4
4
M16
M16
M 20
4
4
4
4
14
14
18
18
22
70
75
90
100
110
32
34
42
52
62
6
6
8
8
8
M20
M24
M24
M24
M 27
4
4
8
8
8
22
26
26
26
30
125
145
170
70
90
108
10
10
12
12
12
M30
M30
M 30
M33
M36
o
12
12
12
12
33
33
33
36
39
250
290
320
360
430
180
210
215
278
340
12
12
16
16
18
16
16
42
48
500
560
400
460
18
20
-40
I
Drilling
Bolting
I
M 12
M 12
M 39
M45
&
dr
-
8
10
10
10
12
12
12
--`,``-`-`,,`,,`,`,,`---
350
Flange
Pipe
67
Copyright British Standards Institution
Provided by IHS under license with BSI
No reproduction or networking permitted without license from IHS
Not for Resale
BSI B S * 4 5 0 4 :
PART*:L 6 9 W L b 2 4 b b î 0 2 7 8 0 4 b 1
BS 4504 : 1969
TABLE l00/3. STEEL PLATB FLANGES FOR WELDING
Nominal pressure 100 bar (1 bar = 10' N/m?
Drilling
Nom.
Stze
b
--`,``-`-`,,`,,`,`,,`---
10
15
20
25
32
17.2
21.3
26.9
33.7
42.4 .
I
4'
No.
68
78
M12
M12
M16
M16
M20
4
4
4
4
40
45
22
24
24
20
I
2
2
2
2
2
20-
100
105
130
140
155
f
58
h
4
14
14
18
18
22
70
75
90
100
110
40
50
65
80
100
48.3
60.3
76.1
88*9
114.3
170
195
220
230 '
265
26
28
30
34
36
88
102
122
138
162
3
3
3
3
3
M20
M24
M24
M24
M27
4
4
8
8
8
22
26
26
26
30
125
145
170
125
150
175
315
355
385
430
505
42
48
54
60
72
188
218
260
250
139.7
168.3
193.7
219-1
273
345
3
3
3
3
3
M30
M30
M30
M33
M36
8
12
12
12
12
33
33
33
36
39
250
290
320
360
430
300
350
400
500
323.9
355.6
406-4
508
585
84
95
106
128
410
465
535
615
4
4
4
4
M39
M45
M45
M52
16
16
16
20
42
48
48
56
500
655
715
870
200
2-05
68
Copyright British Standards Institution
Provided by IHS under license with BSI
No reproduction or networking permitted without license from IHS
Not for Resale
180
210
560
620
760
BSI BS*4504: P A R T * 1 b î
m
1624bbî 0278047 3
BS 4504 : 1969
TABLE 100/4. STEEL SCREWED BOSS FLANGES
Nominal pressure 100 bar (1 bar = 10' N/m9
'
All dimensions a n in millimetrcs (except Inch nominal slze column). Screwed to BS 21, Pipe threa
k
'.
dS
For seal welding
diameter
in
10
15
1
1%
25
32
1%
40
2
50
w
20
125
150
M12
M12
M16
M16
M20
4
4
4
78
2
2
2
2
2
34
36
40
44
52
88
102
122
138
162
3
3
3
3
3
M20
M24
M24
M24
M27
4
56
188
218
3
3
17.2
21.3
26.9
35.7
42.4
100
105
130
140
155
20
20
22
24
24
28
28
30
32
32
484
60.3
170
195
26
28
30
32
36
40
44
2%
3
4
5
6
I No.
b
'/a
94
Boss
Ralsed face
139.7
165.1
I
I
I
315
355
60
40
45
58
68
'
- - --
4
4
4
8
8
8
M30
8
M30
12
k
14
14
18
18
22
70
75
90
100
110
22
26
26
26
30
125
145
170
180
210
33
33
250
-
290
2
2
2
3
3
68
3
3
3
3
3
80
95
i
225
I
3
3
7
-
69
Copyright British Standards Institution
Provided by IHS under license with BSI
No reproduction or networking permitted without license from IHS
Not for Resale
--`,``-`-`,,`,,`,`,,`---
-
___-
1624669 0278048 5
P A R T * 1 69
BSI BS*450q:
rn
BS 4504 :1969
. TABLE 160/i INTEGRAL STEEL FLANCiES
N o d d pr~ssura160 bar (1 bar = 10' N/m$
rlze
D
f
'
Neck
Drillhg
. biting
No.
k
48
14
14
18
18
22
70
75
90
100
110
40
45
50
61
68
10
15
20
25
32
100
105
130
140
155
20
20
22
24
26
40
45
58
68
78
2
2
2
2
2
M12
M12
M16
M16
M20
4
4
4
4
40
50
65
170
195
220
230
265
28
30
34
36
40
a8
102
122
138
162
3
3
3
3
3
M20
M24
M24
M24
M27
4
4.
8
8
8
22
26
26
26
30
125
145
170
180
210
82
96
118
128
150
44
50
54
60
68
188
218
260
M30
M33
M33
M 39
8
12
12
12
12
33
33
36
36
42
250
290
320
360
430
184
224
250
285
345
3
3
3
3
3
M30
250
315
355
390
430
515
300
585
78
410
4
M 39
16
42
500
80
100
125
150
175
200
/2\
I
I
I
Raiseà face
Nango
Nom.
NOTB. Altemintive riock form,'
S ~ O W
d oI t~t e d ,
. .. .
70
--`,``-`-`,,`,,`,`,,`---
Copyright British Standards Institution
Provided by IHS under license with BSI
No reproduction or networking permitted without license from IHS
Not for Resale
'
$0
4
..
have ' a 'm&muxi'h~aft
288
346
414
10
of 1 Z"
BSI BS*4504: P A R T * l 69 M 1624667 0278049 7
BS 4504 : 1969
TABLE 16% STEEL WELDIN0 NECK W û E S
Nomlnal pressura 160 bar (1 bar = IO' N/m?
I
Nom.
size
PlPo
0.d.
dl
I
+
I
"4
Fiange
--
DI'
4
4
22
26
26
26
M30
M30
M33
h139
8
12
12
12
12
33
33
36
36
42
M 39
16
42
82
86
100
44
50
54
60
68
115
128
138
140
155
188
218
260
285
345
3
3
3
3
78
175
410
175
200
250
139-7.
168.3
193.7
219.1
273
315
355
390
430
515
300
323-9
585
150
M20
M24
M24
M24
M27
3
3
3
3
3
28
30
34
36
40
125
22
88
102
122
138
162
170
195
220
230
265
80
100
4
64
48.3
60.3
'76.1
88 b9
11403
50
65
14
M12
M12
40
ha
4
4
4
4
2
2
2
2
2
20
20
22
24
26
Neck
~~
40
45
58
68
78
100
105
130
140
155
I
NOU
45
45
58
58
60
17.2
2113
26.9
33.7
42.4
I
Drllltnp
--10
15
20
25
32
--`,``-`-`,,`,,`,`,,`---
I
For weld DtcDaration see
B.S 2633'and 8.C.2971 or
B.S.1821 and BS2640
75
M 16
M16
M20
8
8
8
M33
-
14
18
18
30
I
r
x
-
70
75
90
100
110
32
34
42
52
55
6
6
8
8
8
4
4
4
125
145
170
180
210
70
90
108
120
150
10
10
12
12
12
6
6
6
8
8
250
290
320
180
210
245
278
340
14
14
16
16
18
8
10
10
10
12
400
18
12
.360
430
500
I
4
6
--
71
Copyright British Standards Institution
Provided by IHS under license with BSI
No reproduction or networking permitted without license from IHS
Not for Resale
B S I BS*4504:
I
67.
PART*L
b
m
Lb24667 0278050 3
BS 4504 :1969
Nom.
dm
10
15
20
85
32
40
PI
?!.o
4
D
1742
21.3
26.9
33.9
424
100
105
130
1W
1 2 2
24
155
28
170
34
34
36
I
'
a
i
a
ht16
4
M20
4
3
3
3
3
3
M2û
4
4
250
139.7
1683
19517
219.1
273
315
355
390
430
515
76
90
.300
,723.9
585
lo6
--
40
44
54
6a
68
45
83
10a
122
138
162
MaQ
M24
M24
M27
4
4
8
8
8
14
14
18
70
75
90
18
22
100
110
22
26
26
26
30
125
145
170
180
210
M30
M33
M33
M39
8
la
i2
12
12
36
36
42
siw
345
3
3
3
3
3
410
4
M39
16
42
500
188
218
260
285
7?
--`,``-`-`,,`,,`,`,,`---
Copyright British Standards Institution
Provided by IHS under license with BSI
No reproduction or networking permitted without license from IHS
4
58
l25
175
200
2
2
6a
78
76.1
88.9
114.3
150
k
26
65
80
100
265
f
26
483
60.3
230
40
I
M12
M12
M16
50
1%
220
4
Not for Resale
M30
33
33
250
290
520
430
3b24bb9 0278053 5
BSI BS%4504: P A R T * 3 6 9
m
BS 4504 : 1969
- .
.~
T
..
.
.. _ -...
.
Nom.
size
No.
.M16
M16
M16
M20
M20
125
130
135
150
165
24
26
28
28
32
40
2
45
2
2
2
40
185
50
65
80
100
2 0
34
38
42
88
102
122
138
162
3
3
3
3
3
M24
M24
M24
125
60
68
74
82
100
188
218
260
345
3
3
3
3
3
M30
175
200
250
340
390
430
485
585
300
690
120
410
4
10
15
20
25
32
150
4
Neck
Bolting
230
255
m
NOTE.
46
54
58
68
78
285
2
4
4
4
4
4
c
85
18
18
18
22
22
90
95
105
120
4
5
5
200
235
39
42
48
275
320
355
400
490
207
246
275
314
394
6
8
8
8
10
52
590
480
10
26
135
26
26
30
33
150
33
36
M39
M45
12
12
12
12
16
M48
16
M30
M33
M36
1
4
4
4
4
90
102
125
142
168
4
8
8
8
8
M27
46
52
57
63
78
180
6
6
Alternative neck form, shorn dotted, t o have a
maximum draft angle of 12 ,
73
--`,``-`-`,,`,,`,`,,`---
Copyright British Standards Institution
Provided by IHS under license with BSI
No reproduction or networking permitted without license from IHS
Not for Resale
BSI BS*:YSO:Y:
69
PART*I
= Lb2:Ybhî 0 2 7 8 0 5 2
~
7
-
r
.-
EIS 4504 :1969
ELWELDÍNG
NECK FLA
- < - ..'ih6ar (1 bar ='IO1 N/m9
,
'm.. .
. . I. -:
fi..'.
. .... . _.. .
.
.~
, _.. .
~.
.
~
:
N6m.
rLe
15
20
25
32
40
50
65
80
100
125
150
175
200
250
0.g:
dl
D
21.3
26.9
33*7
42.4
48.3
130
135
150
165
185
26
28
28
32
60
45
65
58
65
68
75
34
80
60.3
76.1
1016
200
230
255'
85
127
300
340
38
42
46
54
152.4
171.8
219.1
244.5
298 a5
390
430
485
585
60
68
74
82
100
95 '
102
120
140
160
170
190
215
----
48
55
60
74
84
6
6
8
8
10
4
4
4
6
10
6
12
12
14
16
6
18
22
270
25
305
3 8 5 3 0
10
235
M30
33
33
95
124
136
164
275
200
M3.3
M36
M39
M45
12
12
12
16
36
320
355
400
490
240
3
3
3
3
3
M24
M24
M27
M30
218
3
3
3
3
Not for Resale
90
26
26
30
102
122
138
162
188
-
h
8
8
8
8
12
78
88
345
48
18
18
22
MI6
M16
M20
260
285
h
4
4
4
4
4
2
2
2
2
3
14
Copyright British Standards Institution
Provided by IHS under license with BSI
No reproduction or networking permitted without license from IHS
Driiihg
No.
4
-
Rilscd fica
f
4
--
PI
...
M20
M24
22
26
39
42
48
95
105
120
135
150
180
m
r
-
6
8
8
8
10
10
12
--`,``-`-`,,`,,`,`,,`---
. .
-
BSI B S U 4 5 0 4 :
PART*l
69
l b 2 4 b b 9 0278053 9
BS 4504 : 1969
TABLE32011. I~TEGRAL=EL
Nominai pressure 320 bar (1 bar
. -
-
FLANGES
10' N/m3
I
Nom.
size
Bolthg
I
.
Na
0
b
4
f
10
15
20
25
32
125
130
150
160
180
24
26
40
45
68
78
M16
M16
M20
M20
M24
4
4
30
34
36
2
2
2
2
2
40
50
65
80
100
195
210
255
275
335
38
42
51
55
65
3
3
3
3
3
M24
M24
M27
M27
M33
4
102
122
138
162
8
8
8
8
26
26
30
30
36
145
160
125
150
175
200
250
380
425
485
525
640
75
84
95
103
125
3
3
3
3
3
M33
12
12
12
16
16
36
39
42
42
52
310
350
400
A
.
58
88
188
218
260
285
345
Neck
M36
M39
M39
M48
4
4
4
c
18
18
22
22
26
85
46
90
52
62
72
a2
4
4
4
4
5
96
110
137
160
190
5
5
6
6
8
235
24x
8
10
10
10
10
105
115
130
200
220
265
440
540
310
350
432
..NOTE.Alternatlve:neck form, shown d o t t e d , t o have a m a x i m draft angle of 12'
--`,``-`-`,,`,,`,`,,`---
Copyright British Standards Institution
Provided by IHS under license with BSI
No reproduction or networking permitted without license from IHS
Not for Resale
ns 4504 :1969
PART*L
.
69 M Lb24669 0278054 O I
TABLE3 2 0 ~STEEL WELDING
NECK FLANGES
NomInal p m - 320 bar (1 bar = 10' N/m?
For weld DrcDaration see
0.S2633'and B.S.2971or
B.S.1821 and B.S.2640
I .
--`,``-`-`,,`,,`,`,,`---
BSI B S * 4 5 0 4 :
rw
ofappropriate
m-I-Neck -ha
r
No.
41
%
.
-
I
40
45
10
15
20
25
32
17.2
21.3
26.9
33.7
42.4
125
130
150
160
180
24
26
30
34
36
58
60
72
78
84
40
50
65
80
100
48-3
195
210
255
38
42
51
55
65
88
88
100
120
130
145
102
122
138
162
175
195
215
235
188
218
300
63'5
88.9
101.6
139.7
200
168.3
193.7
219.1
244.5
250
323*8
125
150
175
Copyright British Standards Institution
Provided by IHS under license with BSI
No reproduction or networking permitted without license from IHS
275
335
380
425
485
525
640
75
84
95
103
125
-
58
68
78
2
2
2
2
2
M16
M16
M20
M20
M24
4
4
4
4
4
18
18
22
22
26
3
3
3
4
3
3
M24
M24
M27
M27
M33
26
26
30
30
36
3
M33
M36
260
285
3
3
3
345
3
M48
Not for Resale
M39
M39
8
8
8
8
12
12
12
16
16
36
39
42
42
52
85
90
105
115
130
145
160
200
220
265
310
350
400
440
540
d8
44
48
58
68
78
92
106
138
156
186
230
265
308
345
428
6
6
6
4
4
4
8
4
8
6
10
10
12
14
16
20
25
28
30
40
8
10
10
10
12
BSI B S * 4 5 0 4 :
PART*L
69
= Lb24bbî
0278055 2
TABLE 4Uû/i. INTEGRAL STEEL FIANGES .
Nominal pressun 400 bar (1 bat 10' Nlrn')
p.
--`,``-`-`,,`,,`,`,,`---
AI olirrrd
.\lmrh, 1371
1
I
Rakeitace
Neck
Sl7Æ
M 16
M20
20
25
I
32
:
f
180
205
,
i
220
5 0 1 2 3 5
6 5 ' 2 9 0 .
40
80
100
~
3 8 ' 6 8 1 2
44
78
2
M20
M24
MZ7
4 8
52
3
3
M27
M27
160
"335
370
I
!
8
102
8
I
[
165
180
64
68
, 1 2 2 1
3
M30
8
138
240
162
M30
M36
a
80
3
3
33
33
8
39
295
92
188
. 3
218
'
3
2 6 0 1 3
M36
M39
M45
M45
12
12
12
39
42
340
390
450
490
!
i
225
I
125
150
175
200
/h\NOTE.
.
I
415
475
545
!
r
105
120
130
I
:
16
48
48
I
Álternaiivc neck form, shown dotted, to have
. .._.-.
a maximum
----.---.draft angle
. of 12 O,.
77
Copyright British Standards Institution
Provided by IHS under license with BSI
No reproduction or networking permitted without license from IHS
Not for Resale
BSI B S * 4 5 0 4 :
P A R T * L 69
L624bbî 0 2 7 8 0 5 6 4
Lsi 4504 :1969
TABLE 4ûûK STEEL WELDING NECK FLANGES
Nominal prrssun 400 bar (1 bar l(r Nlm3
Far weld preparation see
0.S 2633 and 0.S.2971 or
B.S. 1821 and 88.2640
g as appropriate
I
I
r
i
L
f
8
I
k
A i alrrnd
Ahlatch. 19II
NOUI.
r h
25
32
40
50
65
80
100
48.3
60.3
76.1
101.6
114.3
139.7
1
1
1
205
220
235
290
305
370
I 4 4
48
52
64
68
80
Ilo1
110
120
135
150
175
78
88
102
122
138
162
200
225
280
188
218
285
2
3
2
2
M20
M20
3
3
3
M27
M27
M30
M30
M36
165
M36
340
3
3
I
125
150
200
193.7
219.1
Copyright British Standards Institution
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I
I
415
475
92
105
-
Not for Resale
M24
M27
i
48
I
; 490
i
i
106
120
158
174
216
; 12
258
302
:
I
15
6
18
20 :
25
I>
8
30
35
40
388
i
G
1
'
'
!
8
8
10
10
--`,``-`-`,,`,,`,`,,`---
10
15
20
E S 1 BS*4504:
PART*KL
b 7 H L b 2 4 b b 7 0278057 b
Amendment Slip No. i, published 17 March, 1971
to
BS 4504: 1969 *
Flanges and bolting for pipes, valves and fittings
Metric series
--`,``-`-`,,`,,`,`,,`---
Revised text
Page 2. In the list of reference standards delete the last item and substitute
'BS 4622. Grey cast iron pipes and fittings (Metric dimensions).'
Contents. In the title of Table 6/8 delete 'blank figures' and substitute 'blank
flanges'.
Foreword, In thc first line of the final paragraph delete 'and is published as an
interim measure'.
Add a full stop after 'European practice'.
At the bottom of the Foreword delete the existing Note and substitute the
following:
'NOTE I. Pressures in this standard are given in bar (gauge) 1 bar=lO N'/ma.
NOTE 2. All dimensions throughout this standard are in millimetres unless otherwise stated.'
Claw 4.3.1. Outside diameter (D). Delete 'mm' in all cases.
Clause 4.3.2.1. Delete 'mm' in all cases.
Claw 4.3.2.2. Delete 'mrn' in all cases.
Page 7. In the first line of the second paragraph of the footnote under column 2
delete 'see BS , and substitute 'see BS 4622'.
In the second and third lines of this paragraph delete '(In course of
preparation)'.
Claw 4.3.2.3. Dzlete the whole of this clause.
Ciause 4.3.3. Delete 'mm' in all cases.
Claw 5.1. Matertiìs and threads. At the end of the first paragraph add the
following:
'Free cutting steel for bolts, stud bolts and nuts shall only be permitted when
specified by the purchaser, and its use shall be restricted to the temperature
range-lo "C to 200 "C for nominal pressures up to and including 16 bar.'
Delete the whole of the fourth paragraph.
. .'
Copyright British Standards Institution
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Not for Resale
~
E S 1 BS*4504:
PART*:L
bï
L b 2 4 b b î O278058 8
TABLE, A i Page io.
In column 3 under the heading 'Steel forgings'
Line
1
2
3
a
6
7
lo
Delete
Substiiui?
BS 1 W - 5 0 3 LT 100
BS 1503-161A LT 50
BS lbüJ-161A
070 M20t
BS 1503-161A
BS 1503-503 LT 100
161A LT 50
1503-161A
BS 1sWscM LT 100
BS 1503-224-28A LT 5
0BS 1m-161G rade %A
070 M20t
BS 1503-161 G rade 26A
RS 1503-503 LT 100 -.
BS
1503 224 28A LT 56
. .
BS 1563-161 Grade 26A
OïO M20t
BS 1503-161 Grade 26A
BS EXB-503 LT 100
O M20t
BS 1503-161A
BS 1503-503 LT 100
12
LT 50
1 3 B S T 5 m - 1 6 1 A
14
070 M20t
BS 1503-161A
5
16
BS 1503-161 B
LT 100
8
BS 1503-161A LT 50
+?O%h,
9
- -
BS 150322428A LT 50
BS 1503-161 Grade 26A
070 M2Ot
BS 1503-161 G rade 26A
BS 1503-161 Grade 28A
BS 1303-503 LT 100
BS 1503-224-28A LT 50
070
BS 1503-161
M2ût Grade 26A
6 A
-
BS 1503-161 Grade 28A-BS 1333-%B-LT100
BS 1503-503 LT 100
BS 1403-161A LT 50
BS 1503-234-28A LT 50
24
1 5 ú 3 Z - t B S 7 5 0 3 - 1 6 r G r a d e %A
070 M20
26
BS 1503BS 1503-161 Grade 28A
2 7 7 K T 5 @ 3 - 1 6 1 B
1
63
0
5
1
Grade B A 1503-2408
mmA----z
29
BS l
~
S
~
2
7
l __ A
30
BS 1503-620
BS 1503-621
Si
BS 1503-620
BS 1503-621
32
BS 1503-503 LT 100
BS 150.3-503 LT 100
7
BS 1503-161A LT 50
BS 1503-224-28A L T ~ O 34BS 1503-161A
BS 1503-161 Grade %A
35-70
M2û
070 M2ût
r
F
d
6
1
B
BS 1503-161 Grade 2ûA
3'1
03-161B
BS 503-1 Grade 2ûABS 1503-SWB 4
X
E
+
39
BS 1503-240B
BS 1503-271A
625
BS 1 5 0 3 - 6 2 1 7
B
S 1503-620
BS 1503-621
zz
-
In column 5, lines 20,25 and 35, delete '6.6' and substitute '4.6'.
In column 6, lines 20, 25 and 35, delete '6' and substitute '4'.
In columns 5 and 6, line 31, delete 'See Note 5' and substitute 'See Note 4'.
TABLE Al, Pages 10,11,12
In the column headings for 'Nominal pressure' and 'Design pressure' on each of
these pages delete 'bars' and substitute 'bar'.
Copyright British Standards Institution
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No reproduction or networking permitted without license from IHS
--`,``-`-`,,`,,`,`,,`---
3
Not for Resale
TABLE Ai, Page i1
In column IO, line IO, under '-10
to 120' deletc '110' and substitute '100'.
In column 2 delete ali references to steel plate materials for NP wl.
in column 3 under 'Steel forgings'
Line
1
2
3
-4
5
6
7
Delete
Substitute
HS 1503-503 LT 100
BS 1505161A LT 50
BS 1503-16149
BS 1503-161B
BSm61B
BS 1503-240B
BS 1503-2408
BS 1503-620
BS 15a3-5¢ I
BS 1503-22
BS 1503-lf
Bs
&YE
50
rade 26A
1503-16
e 28A
BS 1503-16 Grade 28A
BS 1503-27
BS 1503-27
a
A
19
n
r---
23
36
1
I
I
I
I
1
A
3s 1503-622
3s 1503-503 LT
BS 1503-622
BS 1503-503 LT 100
BS 1503-2&&4 LT 50
BS 1503-161 Grade '&A
BS 1503-161 Grade 28A
BS 1503-161 Gr& 28A
BS 1503-27lA
BS 1503-27lA
BS 1503-621
100
3S 1503-161A LT 50
ES
1503-161A
ß S 1503-161B
ES 1503-161B
3s
1503-2408
ES 1503-2408
BS 1503-620
3
Copyright British Standards Institution
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Not for Resale
--`,``-`-`,,`,,`,`,,`---
n7
BSI BS*:4504:
PART*1 b ï
= 1624669
0278060 b
=
TABLE Al, Page 12
In column 2, delete all references to steel plate materials for NP 320 and NP400.
In column 3 under 'Steel forgings'
Delete
Line
BS
BS
BS
BS
BS
BS
1
2
3
5
BS
7
__
BS
Substitute
tis 1503-503 L I 100
1503-503 LL' 100
1503-161A LT 50
1503-161A
1503-1618
1503-1618
1503-2408
1503-2408
1503-620
1503-620
15û3-6a
1
BS l!X3-2&2&4 LT 50
BS 1503-161 Gr
26A
BS
6BS
i--13 ; 2 K E BS%1503-16lA
E2EL
14L
BS 1505-1618
B
S
W
17
18
19
20
6 1B
1503-1.408
1503-620
BS 1503-+~0
BS 1503-622
A
BS 1 5 0 5 1 A
BS 1503-161 Gr& %A
BS 1503-271A
BS 1503-271A
BS 1503-621
E
S 1503-621
BS 1503-622
BS 1503-403LT 100
BS 1503-224-28ALT 50
BS 1503-161 Gr& 26A
BS 1503-161 G r d e 28A
BS 1503-161 Q& 28A
Bs l
u
i
BS 1503-271A
ES 1503-621
BS 1503-621
BS 1503-622
TABLE A2, Page 13. In iolumn IS, line 14, under '220' delete '18' and substitute
']Y,
In the column headings for 'Nominal pressure' and 'Design pressure' delete
'bars' and substitute 'bar'.
TABLE B, Page 14. Under column 10/8 delete 'Use Table 16/7' and substitute
'Use Table i6/S1.
TABLE BI Page 15. Under column 25/8 delete 'Use Table 4Ö/7' and substitute
'Use Table 40/8'.
Under column 250/2, line 3, insert '*',
At the bottom of the Table add the following footnote:
'*Use Table 320/2'.
Ai the right hand side of ihc Table add a further column repeating the sizes
given in Column 1.
--`,``-`-`,,`,,`,`,,`---
TABLE 2.5/2. Steel welding neck flanges. Under the heading delete 'Ail dimensions are in milliinetres'.
TABLE 2,5/3. Steel plate flanges for weldfng. Under the heading delete 'All
dimensions are in millimetres'.
4
Copyright British Standards Institution
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Not for Resale
BSI BS*4504: PART*1 69 m L b 2 4 6 6 9 0 2 7 8 0 6 1 8
TABLE 2.5111. Integral grey cast Iron Ranges. Under thc heading delete 'All
dimensions are in millimetrcs'.
TABLE 612. Steel welding neck flanges. Under the heading delete 'All dimensions
are in millimetres'. Add the following:
--`,``-`-`,,`,,`,`,,`---
TABLE 6/3. Steel plate flanges for welding. Under the heading delete 'All dimensions are in millimetres'. Add the following:
TABLE 6/5. Steel slipon boss íianges for wekiing. Under the heading delete 'All
dimensions are in millimetres'.
In the drawing delete dimension 'K'*and substitute 'A'
TABLE 6/6. Steel locwe flanges for welded on lapped pipe ends. Under the heading
delete 'All dimensions are in millimetres'.
In column 2, line 17, delete '419' and substitute '406.4'.
Add the following:
1 I
dl
450
D
I
457-2 595
I8
b m F
32
(b'tlwI E i""'T 1
M20
465
22
k
?ye[!
-
550
520
TABLE 6/8. Steel plate blank flanges. Under the heading delete 'All dimensions
are in millimetres'. Add the following:
450
1
I I
;4
5DJ%4
I
;;b
5;
TABLE 6/11, Integrai grey cast ir00 Ranges. Under the heading deletc 'All
dimensions are in millimetres'.
Delete the whole of tho NOTE.
Add the following:
Nom.iIza
I Dmy6 I
Ri1ptdfice
dc
I f
I E.ltIu8 I N a 1Drllllng
da I
k
I d~NeckI
f
450
I595 I 30 15201 4 I M20
16 I 22 1550 1492 I 8
TABLE 6/12. Malleabk cast ir00 lategral Rpnges. Under the heading delete
'All dimensions aro in millimetres'.
I
5
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Not for Resale
BSI B S * 4 5 0 4 :
PART*L
69
m
Lb24669 0278062 T
m
TABLE 6/13. Malleable casi iron screwed boss flanges. In column 4, line 11,
delete '180' and substitute '190'.
--`,``-`-`,,`,,`,`,,`---
TABLE 10/2. Steel welding neck finges. Under the heading delete 'All dimensions
are in millimetres'.
TABLE 10/3, Steel plate flanges for weldlng. Under the heading delete 'All
dimensions are in millimetres'.
TABLE 1015. Steel sllp-on boss Ranges for welding. Under the heading delete
'All dimensions are in millimetres'.
In column 12, line 5, delete '237' and substitute '247'.
In the drawing delete dimension 'K' and substitute 'k'.
TABLE 10/6. Steel loose fianges for welded on lapped pipe ends. Under the
heading delete 'All dimensions are in m¡llimetres'.
In column 1, line 4, delete '23' and substitute '25'.
TABLE lo/& Steel plate blank flanges. Under the heading delete 'All dimensions
are in millimetres'.
TABLE 10/11. Integral grey cast iron flanges. Under the heading delete 'All
dimensions are in millimetres'.
rABLE lall. Integral steel flanges. Under the heading delete 'All dimensions
are in millimetres'.
TABLE l6/2. Steel welding neck ílanges. Under the heading delete 'All dimensiow
are in millimetres'.
In column 12, line 4, delete '45' and substitute '46'.
TABLE 16/3. Steel plate fianges for weldlng. Under the heading delete 'All
dimensions are in millimetres'.
TABLE 16/4. Steel screwed boss flanges. Delete the drawing and substitute the
following:
I
diameter
I
I
k
6
Copyright British Standards Institution
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-
--
Not for Resale
BSI BS*4504: P A R T 8 1 69 W 1624669 0278063 1
=
--`,``-`-`,,`,,`,`,,`---
TABLE 16/5. Stecl slipon bms flanges for welding. Under the heading delete
All dimensions art: in millimetres'.
Delete thc whole of the NOTE.
In column 9, line IS, delete '8' and substitute '12'.
i n thc drawing delete dimension 'K' and substitute 'k'.
.
TABLE 16/8. Steel plate blank flanges. Under the heading delete 'All dimensions
are in millimetres'.
TABLE 16/11. Integral grey cast iron flanges. Under the heading delete 'All
dimensions are in millimetres'.
TABLE 16/12. Malleable cast iron Integral flanges. Under the heading delete
'All dimensions are in millimetres'.
TABLE 16/21. Integral copper alloy flanges. Under the heading delete 'All
dimensions are in millimetres'.
In the drawing delete dimension 'K' and substitute 'k'.
-
TABLE =/l. Integral steel flanges. Under the heading delete 'All dimensions
are in millimetres'.
TABLE 25/2. Steel welding neck finges. Under the heading delete 'All dimensions
are in millimetres'.
TABLE 25/3. Steel plate flanges for welding. Under the heading delete 'All
dimensions are !n millimetres'.
TABLE S/S. Steel slipon boss flanges for weldlng. Under the heading delete 'All
dimensions are in millimetres'.
Delete the drawing and substitute the following:
7
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Not for Resale
BSI B S U 4 5 0 4 :
PARTaL 69
L b 2 4 6 6 9 0278064 3
TABLE 25/8. Steel plate blank flanges. Under the heading delete 'All dimensions
ar.e in millimetres'.
TABLE 25/11. Internal grey cast iron Ranges. Under the heading delete 'All
dimensions are in millimetres'.
In column 3, line 13, delete '32' and substitute '34'.
TABLE 25/12 Malleable cast iron Integral flanges. Under the heading delete 'All
dimensions are in miilimetre~'.
TABLE 25/21. Integral copper alloy flanges. Under the heading deletc 'All
dimensions are in millimetres'.
TABLE 40/1. Integral steel flanges. Under the heading delete 'All dimensions
are in millimetres'.
Delete the whole of the NOTE.
TABLE #/2. Steel welding neck flanges. Under the heading delete 'All dimensions
are in millimetres'.
Delete the whole of the NOTE.
TABLE 4/3. Steel plate flanges for weelding. Under the heading delete 'All
dimensions are in millimetres'.
Delete the whole of the NOTE.
TABLE 4û/5. Steel slipon boss flanges for welding. Under the heading delete
'All dimensions are in millimetres'.
In the drawing delete dimension 'K' and substitute 'P.
TABLE 4û/& Steel plate blank ñanges. Under the heading delete 'All dimensions
are in millimetres'.
In the heading 'NOTE 1' delete '1'.
Delete the whole of NOTE 2.
--`,``-`-`,,`,,`,`,,`---
TABLE 4/21, Integral copper d o y flanges. Under the heading delete 'All
dimensions are in millimetres'.
In the drawing delete dimension 'K' and substitute 'k'.
TABLE (%/l.Integral steel flanses. Under the heading delete 'All dimensions
are in millimetres'.
TABLE 64/2. Steel welding neck fianges.Under the hcading delete 'All dimensions
are in millimetres'.
8
Copyright British Standards Institution
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BSI B S 8 4 5 0 4 : P A R T * L 69
1624667 0 2 7 8 0 6 5 5
TABLE ó4/3. Steel plate flanges for we:&!.!..
dimensions are in millimetres'.
Under the heading delete 'All
TABLE lûû/l. Integral Steel Ilanges. Under the heading delete 'All dimensions
are in millimetres'.
TABLE l b / X Steel weldlng neck flanges. Under the heading delete 'Ali
dimensions are in millimetres'.
Delete the whole of the NOTE.
TABLE 100/3. Steel plate flanges for welding. Under the heading delete 'All
dimensions are in dllimetrcs'.
Delete the whole of the NOTE.
TABLE 160/1. Integral steel flanges, Under the h&ding delete 'All dimensions
are in millimetres'.
Dclete the whole of the NOTE.
TABLE 160/2. Steel weldlng neck flanges. Under the heading delete 'All
dimensions are in millimetres'.
TABLE 160/3. Steel plate flanges for welding. Under the heading deiete 'All
dimensions are in millimetres'.
TABLE 250/1. Integral stecl flanges. Under the heading delete 'All dimensions
are in millimetres'.
TABLE 250/2. Steel welding neck flanges. Under the heading delete 'All
dimensions are in millimctres',
TABLE 320/1. Integral steel flanges. Under the heading delete 'All dimensions
are in millimetres'.
TABLE 320/2. Steel welding neck fianges. Under the heading delete 'All
dimensions are in millimetres'.
Delete the whole of the 'NOTE'.
TABLE 400/1. Integral steel flanges, Under the heading delete 'All dimensions
are in millimetres'.
In column 6, line 3, delete 'M24' and substitute 'M2O'.
In column 8, line 3, deletc '26' and substitute '22'.
TABLE 400/2. Steel welding neck flanges. Under the heading delei: 'All
dimensions are in millimetres'.
In column 8, line 3, delete 'M24'and substitute 'M20'.
In column 10, line 3, delete '26' and substitute '22'.
--`,``-`-`,,`,,`,`,,`---
9
Copyright British Standards Institution
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No reproduction or networking permitted without license from IHS
Not for Resale
B S I BS*4504:
P A R T * % 69
1624669 0278066 7 W
AMD 837
Amendment Slip No. 2, published 3 January, 1972
to BS 4504 :1969
Flanges and bolting for pipes, valves and fittings
Metric series
Revised text
Forewd. Delete the last two sentenctb of the sixth paragraph.
Clause 1. Scope.Insert the following new paragraph at the end of Clause 1 :
'For the purpose of interchangeability in the mating of flanges, the dimensions
which relate to the outside diameter of the flange, pitch ckcle diameter of drilled
holes, and the number and size of bolts, shall apply regardless of the materials
from which the flanges are manufactured.'
Clause 4.1 Matertals. Delete the existing text of this clause and substitute the
following:
'4.1 Matedab. Materials shall be those given in Tables A I and A2 except that
alternative materials may bc used provided that their mechanical properties are
not inferior at the operating temperature. Whm there is an appropriate
application standard it is the responsibility of the purchaser to ensurs that the
materials comply with the requirements of that standard. In this respect attention
is drawn to BS 806 and BS 759.'
Clause 4.5 Joint faces, Delete the existing text of this clause and substitute the
following:
'4.5 Joint faces
43.1 The standard form of joint face for flanges covered by this specification
shall bc as follows:
(i) Copptr alloy flanges shall have flat joint faces. When a copper alloy
flange is bolted to a flange of any other material the raised face on that
other fiange shall bc removed. The inevitable reduction in thickness is
acceptable.
(2) Ductile, grey and malleable cast iron integral fianges shdi have raised
joint faces as shown in the tables unless specified otherwise by the
purchaser.
(3) Malleable cast iron screwed flanges shall have ñat joint faces.
--`,``-`-`,,`,,`,`,,`---
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BSI BSs4504: P A R T * I , 69 W 1624667 0278067 9
(4) Stcel flangcs shall have raiscd joint l a a s except that blank flanges may
be flat faced o r have a spigot at the option of the manufacturer.
4.5.2 Where it is impractical for the manufacturer to provide a raised joint face
on cast iron or steel flanges the flange may be flat faced, its thickness being in
accordance with the values specified for dimension 'b' elsewhere in this standard,
4.5.3 Where full face gaskets are used with flat faced flanges it is the responsibility of the user to ensure the suitability of this type of gasket and the grade
of bolting for the particular duty and prcssure loading.'
Clause 5.1 Materials and threads. Insert the following after the first paragraph:
'Frec cutting steel for bolts, stud bolts and nuts shall only be permitted when
specified by the purchaser, and its use shall be restricted to the temperature
range -10 'C to 100 "C for nominal pressures up to and including 16 bar.'
Table 10/2. Steel welding neck fianges
Add the following:
Table 10/3. Steel plate Ranges for welding
Add the following:
Table 10/8. Steel plate blank Bang=
Add the following:
I
No*
size
450
I I
2
--`,``-`-`,,`,,`,`,,`---
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Not for Resale
Lb24669 0278068 O
BSI BS*4504: P A R T * I 69
m
Table lall. Integral steel flanges
Add the following:
Table 16/3. Steel plate flanges for welding
Add the following:
Table 16/8. Steel plate blank flanges
Add the following:
Nom.
rlzc
450
-
Driillng
Flange
k
D
610
3 O w
34
3
Copyright British Standards Institution
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Not for Resale
--`,``-`-`,,`,,`,`,,`---
Table 16/2. Steel welded neck flanges
Add the following:
BSI BS*4504: PART*3 6 9
3624669 0278069 2
Table U/2. Steel welding neck fhnges
Add the following:
I I I %;^3 I 1 o
Table 25/3.Steel plate Ranges for welding
Add the following:
y2
450
;
:
que;2
Bolting
457.2
r13i
M33
Table 25/8. Steel plate blank flanges
Add the following:
Drilling
da
36
Table 25/11, Integral grey cast iron ñanga
Add the following:
4
--`,``-`-`,,`,,`,`,,`---
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~
BSI B S U 4 5 0 4 : P A R T * L 6 9
L b 2 4 6 6 9 0278070 9
--`,``-`-`,,`,,`,`,,`---
Tables 2.512, 612, 1012, 1612, 2512, 4012, 64th 10012, 16012, W12, 32012 pnd
40012. Steel welding neck flansea
Insert on the diagrams 'r* and an arrow pointing to the transition radius between
the taper and parallel portions of the welding neck, as in the typical illustration
below.
5
Copyright British Standards Institution
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Not for Resale
BSI B S * q 5 0 4 :
PART*3 69
.,*I
.
~
m
.( p
.--I.)
3 b 2 4 b b î 0278073 O
.
,
i
.*;:**1
1-
,
-b
NOjomlN~dZ4
15
20
..
6
.
.~
6
PI'
25
8
32
50
8
9
11
65
13
80
13
40
loo
16
I
Table 25/21. Integral copper alloy flanges
Delete the values in Column h, and substitulc the following:
Nomlnil size
~~
I
b
~
15
20
25
8
8
9
--`,``-`-`,,`,,`,`,,`---
32
9
40
11
11
13
14
17
50
65
80
100
Table 40/21. Integral copper illoy flanges
Delete tho values in Column b, and substftutc tho following:
Nomlnil i l t e
15
20
25
32
40
13
50
13
65
80
100
Copyright British Standards Institution
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m
14
16
19
Not for Resale
.
E S 1 BSU4504:
,
P A R T * 1 69
1624669 0 2 7 8 0 7 2 2
m
AMD861
-
Amendment Slip No. 3,-pÜbgshed 15 February, 1972
~
*m-.
Flanges and b
.
~
.- -- . .
. . Metric series
,
Revised text
Section 1, Scope
Add the following before the second paragraph:
'Details of ductilc iron flanges arc spacificd in ES 4772.'
Add the following before the Notes at the end of the section:
'It should be noted, liowcvcr, that full face gaskets are necessary for copper alloy integral flanges up to 100 mm nominal
diameter.'
--`,``-`-`,,`,,`,`,,`---
C l a w 4,l Materiais
Add tHe following paragraph at the end oí this clause:
'Certified materials are specified lor carbon stecl Ranges lor use at temperatures iricxccss of 400°C and recommended for
alloy stecl Ranges for use at temperatures in excess of 475°C Representative clevatcd temperalure tests at the temperature or tcmpcratures specified by the purchaser shall not bc rcquired for material specificd to the order provided the
manufacturer has obtained certification approval for the supply of material covered by Ihcrelcvantmaterial spcclficaiion,
following the procedure described in BS 3920, which lays down conditions undcr which he shall demonstrate that the
sttel In question consistently has the properties specified in thc rclcvant material specification.'
I
I
Table Al. Pressure/temperature ntlngs for steel fiangeji
Dcletc Table A I and its footnotes and substitute ihc table attached.
I-'
*
Table A2. Preqsure/temperaturo ratings for grey and molleablc casi Iron and copper alloy Ranges.
Undcr thc heading 'Bolts and stud bolts', in the last line of 'Nominal prcssurc 25 bar', substitute '64' for '4.6'. in the same
linc, undcr tho heading 'Nuts' subslitutc '6' for '4'.
Undcr lhe hcadlng 'Bolls and stud bolls', in the last linc of'Nominal prcssurc 40 bar', substitute '6.6' for '4.6'. In thc same
line, undcr lhe heading 'Nuts' rubsîitute '6' for '4',
.
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Gr3
Not for Resale
BSI B S * 4 5 0 4 :
P A R T 8 1 69 E 1 b 2 4 6 6 7 0278073 4 E
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B S I BS*4504:
P A R T * l 69
m
3b246b9 0278074 b
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tu
w
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s
Not for Resale
0
B S I BSX4504:
PART*L b ï
= Lh2Llhhï
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0278075 8 I
BSI B S * 4 5 0 4 :
PART*l
bî
= 3b24bbî
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027807b T W
BSI BSU4504:
P A R T U L 69
362qbbï 0278077
L
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i
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PART*l
BSI B S * 4 5 0 4 :
bî
L b 2 4 b b î 0278078 3
m
.- ..
AMD 14&S
Amendment Slip No.4, ptibiished 28 June, 1974.
to ES 4504 : 1969
Flanges and boIting for pipes, vaives and fittings
Metric series
Rcvised tcxt
Ccveï, lide l i ~ g 2nd
c page 6. .4ùd ‘Part 1 : ’and ‘Part 1. Ferrous’ t o tlie
!3S n m b e : 2nd title so that they rcad:
’BS4504: Patt 1 : 1969
Flanges and bulting for pipes, valvzs and fittings
Metric series
Part 1. Ferrous’
I‘iige 2. In tlia list of rcfcreiicc stafidxds deletc BS 1400, BS 2372, and
LIS 2874.
Delete tlie pcnulliinate refcrcnce and substitute
‘BS4772. Ductile iron pipes and fittings.’
Cuctcnts. Delste the fo!lowing:
‘Table 16/21. Integral coppcr alloy flanges. Nominal pressure 16 bar.
Table 2513 I. Integrzl coppcr alloy flanges. Nominal p r m u r c 35 bar.
Table 40/21, Integral coppcr alloy flanges. Nominal pressure 40 bar.’
Foreword. In paragraph 7 dtletc the last sentunce
‘Also n o gcncrally
alloy flanges’.
C h s e 1. (as amendcd hy Amendments Nos. 3 and 3). In lines 4 aiid 5
dciere ‘arid coppcr alloy’,
Clause 3. De!& thc last line:
‘2 1 Copper alloy-iii tegral‘.
Claine 4.3.2.1 (as uinended b y Amendment No. 2). In Line 2 delete
‘and copper alloy’.
Clause 4.3:2.2 (as amended b y Amcndnient No.3) In line 2 de!ete
‘and coppcr dloy fliingcs’.
Clause 4.5.1 (as amendcd by Aiiicndincnt No. 2). Delete item (1) and
renumScr the remaining items (i), (2), and (3) respectivcly.
Gr O
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...................
B S I BS*450Li:
PART*L
69
= Lb24669
0278079 5
Tzblc A1 (as aiiicnded by Amendment No. 3). In t h title dclctc
‘and coppcr alloy’.
In colunin 1 dclctc ‘40’.
Dclcte Columns 4 , 7 , 8 , 9 , 2 n d i0 complelcly.
in Columns 5 and G delete the 12th’ 13th’ 14th. 15th’ 16th’ 20th’ 21% 23nd,
23:d, 24th’ 25th 26th’ 27th, 28th and 29th lines of values.
In the Ibth lin$ of valucs delete tlie design prcssurc ratinss @ven i3 colucins
11 to 17.
24th line of values dclets the design pressure ratings givcn in co!umns
11 t o 17.
In the 29th line of values delete thc design prcssurc ratings givcn in columns
l i to 17.
Table D. Delctc tlie following columns completely:
‘16121
25/21
40121’
Iii th6
Table 16/11. Delete this table.
Table 13/21. Dclcte this table.
Ta‘ulc40/21. Delete this tablc.
,
2
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AILIL) 1756
Amendment Slip No. 9, pubIished 31 JuIy 1975
-_
.
.
to BS 4504 :.Part 1 :1969
.
Flanges and bolting for"pipes, vaIvp and
fittings. Metric series
Part '1: Ferrous
.
.
-.
Revised text
UDCnumber. Delete the existing UDCnumberand substifute'621.643.d034.669.1'.
Page 2. Insert the following in the list of British Standards, maintaining the numerical order of references:
'BS 4439. Screwed studs for general purposes.
BS 4882. Bolting for flanges and pressure containing purposes.'
Foreword. Insert the following new paragraph:
'IT SHOULD BE NOTED THAT. AT THE TIME OF ISSUING THIS AMENDMENT, PROPOSALS ARE
UNDER CONSIDERATION WITHIN CEN/WG 74. FLANGES, EFFECTIVELY RECOMMENDING THAT
THE USE O F DIN-BASED FLANGES IN BS 4504 BE LIMITED TO A MAXIMUM PRESSURE OF 40 BAR.
IF THESE PROPOSALS ARE AGREED AND RESULT IN THE PUBLICATION OF A EUROPEAN
STANDARD, BS 4504 WILL BE AMENDED ACCORDINGLY.'
Clause 1. Scope. Delete the number of this clause and substitute '1.1'.
in line4. imniediately before 'cast iron', delete 'grey'.
Delete 'Details ofductile iron flanges are specified in OS 477L'and substitute the following:
'Details foi.ductile iron pipes and ductile iron pipc fittings aie specified in ES 4772.'
Imrncdiatcly after this ncw sentence insert the following new paragraph:
'Details of flanges for grey iron pipes and grey iron pipc fittings are specified in BS 4622.'
New clause. Insert the following new Clause 1.2:
'1.2 DEFINITION
Nomínal size (DN). A nunierical designation of size which is common to all components in a piping system other than
those using valves, fittings, couplings or tubes which are designated by the outside diameter. It is a convenieiit round
nuinber for reference purposes and it is norinally only l o o d y related to manufacturing dimensions.'
Clnuse 3. Designation. At the end of paragraph 2, immediately after 'nominal pressure', insert '(PN)'. In item 1 I, delete
'Grey'.
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Clause 4.2 Machining of Ranges. Delete the existing text entirely and substitute the following:
'4.2.1 All flanges shall bc free from leniinations and surface defects.
4.2.2 Flanges shall be finished as follows.
(I) All flanges shall have their jointing surfaces machine finished. The finish ofjointing surfaces up to and including
PN 40 shall not be coarser than given in the following table appropriate to the method ohachining. For flanges
above PN 40 i t i s recommended that the surface finish should comply with the requirements of BS W .
BS 1134
Turning
Oihcr than turning
50 t087-5
12.5
N.10
NOTE.Thc tcrm'iurning' includes any mcthod or machining producing concentric or spirol grooves.
(2) Flange outside diameters may be unmachined unlessa mach.¡ne finish is specified by the purchaser.
(3) Unless otherwise specified by the purchascr, all bolt holes shall be drilled, shall be equally spaced on the pitch
circle dianietcr and, in the case of integral flanges, shall be drillcd ofl-centre,
(4) l3earing surfices for nuts shall be parallel to the Rangejointing face within 1 O.'
Clause 4.3 Tolemnces on flange dianietcr, thickness and length of weldfng necks. Delete the asterisk a i the end of this
titk iintl tlcl1:ic i h c i i ~ S ~ ~ i í ifiiotnotc~.
tcd
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BSI B S * 4 5 0 4 :
P A R T 8 1 69 M l b 2 4 6 6 9 02780B1 3
=
Clause 4.4 Finish of joint surfaces. Delete this clause entirely.
Clause 4.5 Joint faces. Renumber tliis clausc as 4.4.
Clause 4.5.1. Renumber this clause as 4.4.1.
I n iten?( I ) dclcle 'Ductile, grey and malleable'.
.
Clause 4.5.2. Rcnumbcr this c l a w as 4.4.2.
Clause 4.5.3. Renumber this clausc as 4.4.3,
Delete the existing text and substitute the following:
- -- .
'It is thc responsibility of the user to select gasket material which is suitable for the fluid at the intended working
temperature and pressure conditions.'
I
Clause 5.1 Materials and threads. Delete paragraphs 2,3 and 4.
Renunibcr the existing paragraph 1 as 5.1 . I ,
Insert the following new subclauses:
'5.1.2 The dimensions and finish of studs and hcxagon hcaded bolts with hcxagon nuts shall comply with the requirements of BS 3697, BS 4190 or OS 4439 as appropriate.
5.1.3 Thc dimensions and finish of stud bolts with hexagon nuts shall comply with the requirements of BS 4882:
1973, Sections I and 2.
5.1.4 Stud bolts may be of the forms shown in BS 4882 except that form 'b' applies only to stud bolts of other than
iilloy SICCI.
5.1.5 Free cutting stccis for studs, bolts, stud bolts and nuts shall only be permitted when specified by the purchaser,
and their use shall be restricted to the temperature range -10 "C to Io0 "C for nominal pressures up to and including
I6 bar.
5.1.6 Where washers ;ire used they shall be of an appropriate niaierial and their dimensions shall comply with the
rcqiiircnicnts of Table 3 of BS 4320:1908.
Siaiidurd black normal series washers complying with the requirements of BS 4320 may be used for the temperature
rntige - 30 'CIO 260 "C.'
Clause 5.2 Stud bolts. Delete this clause entircly.
Ciaiise 5.3 \Yudiers. Delete this clause entirely.
Clausc 7. I-lydriiulie testing of'flanges. Delete the note at the end of this clause.
Clause 8. Deta¡¡s to be supplied by the purchnser when ordering flanges and/or bolting. In item (6) delete '(see 4.2, 4.3
iiiitl4.4)' and substitute '(scc4.2and 4.3)'.
Fig, I , Stud bolt screwed at cach end and plain in the rentre. Delete this figure entirely.
Fig, 2. Stud bolt screwed full length. Delctc this figiirc cntircly.
Fig. 3. Sliapcd stud bolt. Dclctc this figure entirely.
0
Tnhle Al. Prcssurc/tcmpernture ratlngs for steel flangcs. In the footnotc marked 'i'on pages IO, I I , 12, 13 and 14
delete '250 'C'and substitute '300 O C ' .
l'iible A2, I'rcssurc/tcnipcrntiirc ratings for grey and inallcablc cast iron tlangcs. Insert an asterisk at the cnd of the
. iiilcaiid inscrt ihc following footnoic:
"Tlic tensile strcnyih of the cast iron sclccted for the appropriate standard flungc thickness shall not fall below:
( 1 ) for iioniinal prcssiircs up to and including 16 bar: 180 N/nima;
(2)for noiiiinul pressures greater than 16 bar: 220 N/mma.'
For ndiiiinal pressure 2 3 , in column 2 of the tablc, deletc 'Gradc IO' and 'Grade 12' and substitute 'Gradc 12' and
'Grade 14' respectively.
For noniinal pressure 6, in column 2 of the table, dclcic 'Grade IO' and 'Gradc 12' and substiiutc 'Grade 12' and
'Gradc 14' respectively.
For noiiiinal piessurc IO, in caliinin 2 of the table, deletc 'Grade IO' and 'Gradc 12' and substitute 'Grude 12' and
'Grade 14' rcspcctively,
For nominal prcssurc 16, in coliinin 2 of the tuble, delete'uradc W a n d substitutc'Gradc 14',
'I'ublc U. Sunininry of contents of f l u n p lablcs. For noniinal size 450 mm inscrt 'X' under thc column hcadings 6/2,
6/3,6/6,6/l I, 10/2, lop, i0/8, IW, 16/2, 16/3, 16/8, 25/Il 25/2,25/3,25/8,25/11,40/1,40/2,40/3 add 40/5.
T a b h 23/11, 6/11, 6/12, iO/ii, 16/1, 16/Jl, 25/11, 25/12, 40/11,
thc rollowiny foolnotc bcneuih cuch of thcsc tubles:
'
a/I,iOO/i,
laO/l, zsO/i, 320/1 and 400/1. Insert
'NOTE.Alternative ncck form, shown doitcd, to havc u niuximum draft angle of 12 O.'
Tubk 6/3,Steel plate ílungcs for wclding. For nominal size 80 mni, in column 5 of the table, deletc '120' and substituto
'128'.
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Table 40/1, Integral steel flanges. Insert the following details for nominal size 450 mm:
.
dl
û
b
hl
d.
f
Bolting
457.2
685
50
135
560
4-
M36
Nom. s t ~ c
.-
NO.
da
20
39
. k
da
-h.
r
'500
20
12
.
450
-..--Num. size
450
Noin. size
---------
450
4
D
h
-___
~-
I;
d,
457.2
685
D
h
4
Dolilng
685
54
425
M36
68
560
---
'
~~lti
1
No.
4
k
20
39
610
NO.
4
k
20
39
610
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610
Not for Resale
m-
.-a
@J
p.
rrl
ci
X
3
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