Section 1.2
Flanges and fittings
ISO KF Flanges and fittings
Introduction
UHV Series
ISO KF
Typical installation
Clamp
K40
(2 places)
ISO KF Assembly
Features
•
Fast connect and disconnect
• 316L ( 1.430 I) Stainless steel fittings
Optional
0-ring
•
All-metal aluminium clamps
retainer
•
Viton® 0-ring bakeable to ISOoC
•
Single wing nut closure
•
ISO compatible
Centring ring
Specifications
Bulkhead clamp
Material
304 Stainless steel, TIG welded
Aluminium
Du Pont Viton®fiuoroe lastomer
Fittings
Clamps
Standard 0-rings
Vacuum
0-ring compression by un iform pressu re application
around the 15° outer fiange surfaces
Flanges
ISO standard dimensions 360° rotatable
Four standard fiange sizes for use with fou r tube sizes
Tube bore sizes'
Typical installation
Bulkhead
clamp
K40
12.7, 15.8, 22. I, 38. I and SOmm
Maximum temperature
Components
0-ring
150°C
Reusable and inte rchangeable with other ISO
dimension components of the same size
' Caburn-MDC reserves the right to substitute a larger-bore tube according to
availability
Ce ntring ring
Optional
0-ring
retainer
All dimensions are nominal in millimetres unless specified- Weights given are approximate
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Flanges and fittings
Section 1.2
ISO KF Flanges and fittings
Introduction
ISO KF vacuum systems employ components with metric
interface dimensions which have been defined by the
International Standards Organisation (ISO). This ensures a
high degree of compatibility between components obtained
from different sources. Caburn-MDC ISO KF are
compatible with Klein Flange (KF) types.
Use ISO KF for tube sizes DN 16 to DNSO.
Our standard range of KF flanges and fittings are
manufactured from 304 ( 1.430 I) stainless steel.
ISO KF constitutes an economical system of reusable
interfacing stainless steel vacuum fittings and components
for 19.1, 25.4, 38.1 and 50.8mm OD tubing. Assemblies are
usable to Io-s m bar. Maximum temperature for sustained
use is ISOoC. They are ideal for vacuum systems requiring
regular assembly and disassembly.
Each vacuum seal is made by compression of an 0-ring on
a centring ring between mating flanges. The seal is made in
seconds by finger-closure of a wing nut on the all-metal
hinged aluminium clamp.
Inch-metric ISO comparison
Tube OD
inches
Caburn-MDC
reference
0.7S
Kl6
DNI6KF
16
1.00
K2S
DN2SKF
2S
40
ISO
Nominal tube ID
mm
I. SO
K40
DN40KF
2.00
KSO
DNSOKF
so
2.SO
L63
DN63LF
63.S
4.00
LIOO
DNIOOLF
102
6.00
Ll60
DNI60LF
IS3
8.00
L200
DN200LF
212
10.00
L2SO
DN2SOLF
2S4
12.7S
L320
DN320LF
316
16.00
L400
DN400LF
400
20.00
LSOO
DNSOOLF
soo
The ISO KF family of modular building block components
includes all commonly used standard fittings, feedthroughs
and accessories. Reducing flanges are available to connect
different size components. Mating flanges are offered to
interface with pipe and other flange systems including LF
and CF.
Dimensions with ISO industry cross-references
IS 0 ~'-
,~ ,I3{
'c._ - - -
3.0
--42
--j f.--
IS 0 ~
IS 0 ~'-,
't fj
3.0
--j f.--
tf ''
----.
-
DNI6KF
I
~2 40
3.0
DNIOKF
I
41.2
___l
-j f.-
DN25KF
3.0
----1 r--
ss
I
'
DN40KF
Caburn-MDC reserves the right to substitute a larger-bore tube according to availability
All dimensions are nominal in millimetres unless specified - Weights given are approximate
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3.0
--j f.-DNSOKF
Section 1.2
Flanges and fittings
ISO KF Flanges and fittings
Clamps
Hinged clamp
I
B
v
l frn~
f
Centring ring
Features
•
•
•
Fastens ISO KF of
comparable size
Quick make and break
Stainless steel wing nut
and bolt
•
Aluminium construction
•
Requires centring ring
with elastomer gasket
Flange
size
Tube
size
A
B
Wt
kg
Reference
Part
number
DN I0/16KF
12.7-19.0
71
4S
0.2
K07S-C
70,1000
DN20/2SKF
2S.4
80
ss
0.2
KlOO-C
DN32/40KF
38.1
96
70
0.3
KlSO-C
701001
701002
DNSOKF
S0.8
123
9S
o.s
K200-C
701003
Hinged clamp assemblies are the most commonly used method for making ISO KF vacuum
seal connections. Prior to clamping, flanges can be rotated 360° and accept self-centring
0
centring ring seals. Pressure is applied uniformly around the IS outer surface of both
flanges by finger-tightening the single wing nut until the first metal-to-metal contact is made
between the spacing lips of the centring ring and the inner surface of the mating flanges.
This compresses the 0-ring between the flanges and makes the vacuum seal.
Bulkhead clamp
r'"'
I,
/
.,
1
Outside
diameter
j
Centr ing ring
retainer
Features
ISO KF directly
• toFastens
flat plates
• Bolt fastening
• Split-ring geometry
• Aluminium construction
Requires centring ring
• with
elastomer gasket
Flange
size
No. of
bolts
Thickness
BCD
OD
Wt
kg
Reference
DNI6KF
6
DN2SKF
6
9
38.0
SI
0.2
KI6-BC
10
48.0
60
0.2
K2S-BC
DN40KF
DNSOKF
6
10
62.0
7S
0.2
K40-BC
8
10
82.S
9S
0.2
KSO-BC
Part
number
Aluminium
716000
716001
716002
716003
Bolted bulkhead clamps are commonly used to fasten ISO KF components to flat chamber
walls or baseplates. Use of this product requires customer machining of six or eight MS
threaded bolt holes on the mounting surface. Once a clamp has been positioned and
aligned with the mating bolt holes, a vacuum seal is made by alternately wrench-tightening
opposing pairs of bolts. A complete bulkhead clamp assembly consists of two semicircular
clamps, six or eight MS x 16mm long stainless steel bolts and washers.
All dimensions are nominal in millimetres unless specified- Weights given are approximate
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Flanges and fittings
Section 1.2
ISO KF Flanges and fittings
Centring rings
Centring rings
Features
• Standard ring mates ISO KF of equal size
• Adaptor ring mates ISO KF of unequal size
•
Includes elastomer 0-ring
• Stainless steel or aluminium construction
Centring ring assemblies are placed between two ISO flanges with matching
outer diameters. The widest portion of the centring ring rests inside a capture
groove on the flange and the 0-ring rests on the flat polished surface outside
the capture groove. On a blank flange, the groove seen on the face of a flange is
the capture groove, with the 0-ring making contact with this flange face just
outside the groove.
Aluminium Viton® 0-ring
•
Maximum bakeout temperature 200°C
• Sustained use to 150°C
• Aluminium
A
Reference
DNI6KF
16
KI6-CRA
DN25KF
25
K25-CRA
DN40KF
40
K40-CRA
DNSOKF
so
KSO-CRA
7710013
7710014
7710015
7710016
KF Flange
A
Reference
Part
number
DNI6KF
16
KI6-CRAB
DN2SKF
25
K25-CRAB
DN40KF
40
K40-CRAB
DNSOKF
so
KSO-CRAB
7710017
7710018
7710019
7710020
KF Flange
A
Reference
Part
number
DNI6KF
16
KI6-CR
DN25KF
25
K25-CR
DN40KF
40
K40-CR
DNSOKF
50
KSO-CR
7710000
7710001
7710002
7710003
KF Flange
A
Reference
Part
number
DNI6KF
16
KI6-CRS
DN2SKF
25
K25-CRS
DN40KF
40
K40-CRS
DNSOKF
so
KSO-CRS
7710021
7710022
7710023
7710024
c
Reference
Part
number
Aluminium Buna-N® 0-ring
•
Maximum bakeout temperature IOOoC
• Sustained use to 80°C
• Aluminium
Stainless steel Viton® 0-ring
• Maximum bakeout temperature 200°C
• Sustained use to ISOoC
• Stainless steel
Stainless steel silicone 0-ring
•
•
For use in corrosive environments where
silicone is acceptable
Maximum bakeout temperature 200°C
• Sustained use to 150°C
Part
number
KF Flange
• Stainless steel
Adaptor rings
KF Flange
• Viton® 0-ring
•
Maximum bakeout temperature 200oC
• Sustained use to 150°C
A
B
DN 16KF-I OKF
17
12
10
KI6-IO-CR
DN25KF-20KF
26
22
20
K25-20-CR
DN40KF-32KF
41
34
32
K40-32-CR
• Stainless steel
All dimensions are nominal in millimetres unless specified - Weights given are approximate
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7710010
7710011
7710012
Section 1.2
Flanges and fittings
ISO KF Flanges and fittings
DNI6 KF
HV Series
Figure I Blank
I
I
' '
1----f
2.5
Figure 2 Unbored stub
r--i= ~-,--,-'7--n
19
Seal surface
outside groove
2.5
'
Features
• HY rated to IX Io-s m bar
Figure 3 Weld flange - small tube
• High-temperature rated to 200°C
Thro bore
and tube size
• Symmetric, non-rotatable geometry
i-~, - ~ ~ ~
• Elastomer 0-ring seal
• Clamp-style fastening
• !SO-compatible design
2_5
Figure 4 Weld flange
Specifications
Material
Flanges
304ss
0-rings
Viton®, Buna- N®or silicone elastomer
Aluminium
Clamps, hinged and bulkhead
Fastening
Clamp type
Hinged with metric th read
Hexagonal head bolts, MS th read
Bulkhead type
Nut type
Hexagonal
Torque
Clamp: Finge r t ight
Bolts: 9 to 14 Nm
lxlo-s mbar
Vacuum range
Temperature range
Minimum
Intermittent Sustained
Viton®
-20°C
200°C
150°C
sooc
Buna-N®
-20°C
100°C
-20°C
200°C
150°C
Silicone
Weight
0.1 kg maximum
Dimensions
30.0 OD x 17.3 ID maximum
Tube OD
nominal
I
t-~~
1_
i
3 ·0
~~~~
i
I
J~~===*,~
Nom tube OD
Figure 5 Socket weld
Tube OD
Dimensions in blue are common to all flanges
Flange
reference
Wt
kg
Reference
Part
number
Blank
0.03
KI6-B
7712000
Blank
0.03
KI6-US
7715000
9.5
W eld
0.03
KI6-IO-W
7713005
IV
Weld
0.03
KI6-12-W
7713006
IV
Socket we ld
0.03
KI6-12-SW
7713000
W eld
0.02
KI6-W
7713007
Socket we ld
0.02
KI6-SW
7713001
Blank
0.05
KI6-ALB
1120151
Figure
Stainless steel
Blank
Blank
19_1
19_1
2
4
Aluminium
Blank
All dimensions are nominal in millimetres unless specified- Weights given are approximate
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Flanges and fittings
Section 1.2
ISO KF Flanges and fittings
DN25 KF
HV Series
Figure I Blank
I
r- ; ~ I
~ / ~r
1 1
,
r 2.5
I
Figure 2 Unbored stub
Seal surface
___j_
/outside groove
!
l~
Features
• HV rated to Ix Io-s m bar
L- 2~.4-J
• High-temperature rated to 200oC
Figure 3 Weld flange - small tube
• Symmetric, non-rotatable geometry
• Elastomer 0-ring seal
J J
-t
• Clamp-style fastening
5
• !SO-compatible design
Thro
i--bore_ 1
~-~I
~I
t 25
Specifications
1..
1;:±55J
!
I
Tube
-- 1
size
Material
Flanges
304ss
0-rings
Viton®, Buna-N®or si licone elastomer
Aluminium
Clamps, hinged and bulkhead
Fastening
Clamp type
Hinged with metric thread
Hexagonal head bolts, MS thread
Bulkhead type
Nut type
Hexagonal
Torque
Clamp: Finger t ight
Bolts: 9 to 14 Nm
IxI o-s mbar
Vacuum range
Temperature range
Minimum
Intermittent Sustained
Viton®
-20°C
200°C
150°C
Buna-N®
-20°C
100°C
80°C
-20°C
200°C
150°C
Silicone
Weight
0.1 kg maximum
Dimensions
39.9 OD x 22.2 ID maximum
Figure 5 Socket weld
2.5
J
I--- Thro _
bye
-1
I
}'1~
r
'U l
I
I
Tube
I
-
--j
- -7-.6 -.
J
SIZe
30.5 - -- j
Dimensions in blue are common to all flanges
Tube OD
Flange
reference
Wt
kg
Reference
Part
number
Blank
0.05
K25-B
7712001
Blank
0.05
K25-US
7715001
9.5
Weld
0.05
K25-IO-W
7713008
12.7
Weld
0.04
K25-12-W
7713009
nominal
Figure
Stainless steel
Blank
Blank
2
19.1
4
Weld
0.04
K25-19-W
7713010
25.4
4
Weld
0.04
K25-W
7713011
19.1
5
Socket weld
0.04
K25-SW
7713002
Blank
0.05
K25-ALB
1120152
Aluminium
Blank
All dimensions are nominal in millimetres unless specified - Weights given are approximate
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Section 1.2
Flanges and fittings
ISO KF Flanges and fittings
DN40 KF
HV Series
Figure
Blank
1·1,
6 F~~~ ~o
t'!
I
}
tFigure 2
'~:,
I
~
I
Unbored stub
I ,i~
2.5
25
Features
•
HV rated to IX Io-· m bar
I
•
High-temperature rated to 200°C
•
Symmetric, non-rotatable geometry
•
Elastomer 0-ring seal
•
Clamp-style fastening
•
ISO-compatible design
~1--- 38. 1 ---1~
Figure 3 Weld flange - small tube
J J
~ Throlbore ~
6 F~I
I~
!
Specifications
Material
304ss
Viton®, Buna- N® o r sili cone e lastomer
Clamps, hinged and bulkhead
Alum inium
Fastening
Vacuum range
Temperature range
Viton®
Buna- N®
Silicone
size
t77
Figure 4 Weld flange
Flanges
0 -rings
Clamp type
Bulkhead type
Nut type
Torque
~- Tub~ -~
25
·
t
J J
6
t
Hinged w ith metric th read
Hexagonal head bolts, I0-32 UNC th read
Hexagonal
Clamp: Finge r t ight
Bolts: 9 to 14 N m
lxiO·' mbar
Minimum
-20°C
-20°C
-20°C
Weight
Dimensions
Intermittent
200°C
100°C
200°C
Sustained
150°C
F~j
- -l
Thro bore
I
2.5
Tube size
~ ;5SJ
----j
1
J
'
Figure 5 Socket weld
2.5
~
i ~~~---~~ ----,~--~
t
i
Thro bore
~ Tube size - -j
~1----- 43.2 ~
sooc
I
150°C
I
0.2 kg maximum
54.9 OD x 34.9 ID maximum
Dimensions in blue are common to all flanges
Tube OD
reference
Wt
kg
Reference
Blank
0.09
K40-B
Blank
0.2
K40-US
9.5
Weld
0.1
K40-IO-W
12.7
Weld
0.1
K40-12-W
19.1
Weld
0.06
K40-19-W
25.4
Weld
0.06
K40-25-W
nominal
Flange
Figure
Part
number
Stainless steel
44.5
4
Weld
0.04
K40-W
38.6
5
Socket weld
0.08
K40-SW
712002
715002
713012
713013
713014
713015
713016
713003
Blank
o.os
K40-ALB
1120153
Blank
Blank
2
Aluminium
Blank
Flanges and fittings
Section 1.2
ISO KF Flanges and fittings
DNSO KF
HV Series
Figure I Blank
t'.'
1·r
,;',
l6 1=~~~ ~0
r~
Figure 2 Unbored stub
Seal surface
2.5
25
Features
• HV rated to Ix Io-s m bar
• High-temperature rated to 200oC
~--- 50.8 ----j
• Symmetric and non-rotatable geometry
r-
Figure 3 Weld flange - small tube
• Elastomer 0-ring seal
• Clamp-style fastening
Lt_
• !SO-compatible design
61
Specifications
r-
~I
Material
304ss
Flanges
Viton®, Buna-N®or si licone elastomer
0-rings
Clamps, hinged and bulkhead
Aluminium
Fastening
Clamp type
Hinged with metric thread
Hexagonal head bolts, MS thread
Bulkhead type
Nut type
Hexagonal
Torque
Clamp: Finger t ight
Bolts: 9 to 14 Nm
IxI o-s mbar
Vacuum range
Temperature range
Minimum
Intermittent Sustained
Viton®
-20°C
200°C
150°C
Buna-N®
-20°C
100°C
80°C
-20°C
200°C
150°C
Silicone
Weight
0.2 kg maximum
Dimensions
75 OD x 52.5 ID maximum
Tube OD
I~
I
~-
25
·
bore --~
Thro
Tube size
- -j
Figure 4 Weld flange
I
J
1--- - - Tube size - ---1
2.5
r-- - Thro bore - -- l
~1
1
I
,
r +- - - - - '-~
~- T">!;'•-~
,
IO J
Dimensions in blue are common to all flanges
Wt
kg
Reference
Blank
0. 18
K50-B
Blank
0. 18
K50-US
9.5
Weld
0. 18
K50-IO-W
12.7
Weld
0. 18
K50-12-W
19. 1
Weld
0. 18
K50-19-W
25.4
Weld
0. 18
K50-25-W
38. 1
Weld
0.18
K50-38-W
Figure
l _j
Figure 5 Socket weld
Flange
reference
nominal
----.
Part
number
Stainless steel
51.0
4
Weld
0. 13
K50-W
51.3
5
Socket weld
0. 13
K50-SW
712003
715003
713017
713018
713019
713020
713021
713022
713004
Blank
0.05
K50-ALB
1120154
Blank
Blank
2
Aluminium
Blank
All dimensions are nominal in millimetres unless specified - Weights given are approximate
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I'!"!
Section 1.2
Flanges and fittings
ISO KF Flanges and fittings
Replacement 0-rings and flange caps
Replacement 0-rings
l
~~-
B
J
A -~ f-_
Viton® 0-ring
•
•
Maximum bakeout temperature 200oC
Sustained use to I SOoC
KF Flange
A
B
Reference
Part
number
DNIDKF
IS
KID-0
711004
DNI6KF
18
KI6-0
711000
DN2SKF
28
K25-0
711001
DN4DKF
41
K4D-O
711002
DNSDKF
ss
KSD-0
711003
B
Reference
Part
number
Buna-N® 0-ring
•
•
Maximum bakeout temperature 100°C
Sustained use to 80°C
KF Flange
A
DNIDKF
IS
KID-OB
711020
DN2SKF
28
K25-0B
711022
DN4DKF
41
K4D-OB
711024
DNSDKF
ss
KSD-OB
711025
B
Reference
Part
number
Silicone 0-ring
•
•
Maximum bakeout temperature 200oC
KF Flange
Sustained use to I 50°C
A
DNIDKF
IS
KID-OS
711005
DNI6KF
18
KI6-0S
711006
DN2SKF
28
K25-0S
711007
DN4DKF
42
K4D-OS
711008
DNSDKF
55
KSD-OS
711009
Reference
Part
number
Flange caps
To fit flange
Quantity
per pack
KFI6
2
KFCI6
192009
KF25
2
KFC25
192010
KF4D
2
KFC4D
192011
KFSD
2
KFCSD
192012
All dimensions are nominal in millimetres unless specified- Weights given are approximate
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Flanges and fittings
Section 1.2
ISO KF Flanges and fittings
0-ring retainers
0-ring retainer
--.
I
Inside
Outside
diameter
diameter
I
_____l_
3.8__j
Features
•
Not for sustained pressures above
• one
atmosphere
• Stainless steel construction
Supports 0-ring outside diameter
during pressure burst
OD
ID
Wt
kg
DNI6
33.3
29.5
0.1
KI6-0RR
DN25
43.2
36.6
0.1
K25-0RR
KF Flange
Reference
DN40
58.7
54.9
0.1
K40-0RR
DN50
69.9
67.8
0.1
K50-0RR
United Kingdom
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Part
number
7710025
7710026
7710027
7710028
Place an 0-ring retainer over a centring ring assembly which is already
centred on a single flange face. Place the second flange over the centring
ring and 0-ring retainer and secure with a hinged clamp.
All dimensions are nominal in millimetres unless specified - Weights given are approximate
MDC Vacuum Europe
- '-
f-.-
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Section 1.2
Flanges and fittings
ISO LF Flanges and fittings
Introduction
Caburn-MDC's ISO LF components
are an economical system of
reusable and interfacing stainless
steel vacuum fittings for tube sizes
ranging from 63.5mm through to
SOOmm diameters. ISO LF flanges
pick up where the ISO KF system
leaves off. These flanges can
operate in high vacuum
environments to pressures in the
IX I
m bar range. The ISO LF
flange system is ideally suited for
applications requiring rapid and
frequent assembly and disassembly.
Caburn-MDC ISO LF flanges
comply with all ISO specifications
for vacuum mounting hardware and
are compatible with most third
party ISO LF flanges and
components.
o-s
ISO LF Flange assembly
Features
o-s m bar
•
Vacuum rated to I xI
•
Bakeable to 200oC
•
Fast connect and disconnect
•
Economical reusable fittings
•
Genderless geometry
•
Rotatable bolt ring adaptor
•
Elastomer gasket seal
•
Varied fastening methods
•
ISO LF compatible
•
304 stainless steel construction
Specifications
Material
304 (I .4 301)
300ss and aluminium
Steel
Flanges
Centring rings and claws
Bolts
Flange
ISO standard dimensions
360° sexless rotatable
Eight standard sizes
Maximum bakeout temperature
150°C
Number of clamps required
See table
Components Reusable and interchangeable with
other ISO dimension components of the same size
Flange size and tubing
Flange size
DN63LF
DNIOOLF
Tube
The primary method of fastening
and sealing is achieved by using
multiple double claw-clamp
assemblies to provide uniform
compression of an elastomer
gasket trapped between two
mating flanges. The elastomer
gasket is mounted on an aluminium
centring ring that has tubular rims
or extensions that protrude on
either side of the gasket. These
rims or extensions fit into grooves
on the corresponding mating
flanges and conveniently centre the
gasket between the flanges prior to
sealing. A reliable seal is then made
by tightening bolts in an alternating,
criss-cross pattern and thus
applying uniform pressure around
the entire flange sealing surface.
76 (3 ")
lOS (4 '/4')
Bolted rotatable adaptor rings
provide a convenient way of
fastening claw style flanges to
threaded ISO LF flanges, without
the use of individual claw-clamps.
Rotatable bolt rings are ideally
suited for use in applications where
low profile geometry is required.
Bolted non-rotatable ISO LF
flanges use bolts for fastening and
are typically used where single claw
fasteners are not desirable. They
too, are ideally suited for use in
applications where low profile
geometry is required, but do not
offer rotatable construction .
The Caburn-MDC ISO LF family of
modular building-block
components includes all of the
commonly used standard hardware
and fittings. Reducer flanges are
available to connect different size
ISO components. Hybrid adaptors
are available to connect ISO LF
components to non ISO vacuum
fittings and mounts.
In general, Caburn-MDC
components compare with
international components using an
inch-to-millimetre ratio. US sizes
refer to a tube's outside diameter,
whereas international sizes refer to
a tube's inside diameter.
Single claw-clamps are ideally
suited for applications where one
of the mating flanges is flush
Claw-clamp flange
OD
mounted and fitted with threaded
bolt holes. Both the double and
single claw-clamp fasteners provide
unlimited rotation or positioning of
mating flanges prior to final
tightening of bolts.
Bolt flanges
Number
OD
Thickness
Bolt circle
diameter
Holes
12
3 to 4
130
12
110
S.9
12
4 to S
165
12
145
S.9
OD
Thickness
95
130
Bolt
holes
4
X
MS
s X MS
s X MIO
DNI60LF
159 (6 '/4')
ISO
12
4 to S
225
16
200
10.9
DN200LF
219 (SSfs'')
240
12
6 to 12
2S5
16
260
10.9
12
X
MIO
DN250LF
267 (IO 'h")
290
12
6 to 12
335
16
310
10.9
12
X
MIO
DN320LF
323 ( 12 3/4')
370
17
S to 12
425
20
395
14.0
12
X
Ml2
DN400LF
406 (16")
450
17
S to 16
510
20
4SO
14.0
16
X
Ml2
DN500LF
50S (20")
550
17
12 to 16
610
20
5SO
14.0
16
X
Ml2
All dimensions are nominal in millimetres unless specified- Weights given are approximate
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MDC Vacuum Europe
Flanges and fittings
Section 1.2
ISO LF Flanges and fittings
Introduction
/
LF flange
Rotatable bolt ring assembly
0-ring
Rotatable bolt
ring with
retaining ring
Centring \
nng \
,.,. .--~-/"-&.
Spacer
ring ~
Claw-clamp flange
~---- Tub~ OD ---~
Single claw assembly
' - - 0-ring groL e
0-ring
Double
claw
clamp
' - - Seal side
Centring ring assembly
Centring ring
~ 0-ring
~
Spacer ring
Spacer
ring
Bolted flange
Double claw assembly
rI
wbeOD
I
~~~
'-l
Spacer
ring
0-ring groL e
Bolt circle
diameter
Inch-metric ISO comparison
0-ring
ring
q
Intermediate hardware may be required for joining components, these have been omitted for clarity.
ring
Bolted
flange
Bolted rotatable assembly
Spacer
I
Bolted
flange
Bolted non-rotatable assembly
Caburn-MDC
OD
inches
Kl6
0.75
DNI6KF
16.0
K25
1.00
DN2SKF
25.0
K40
1.50
DN40KF
40.0
KSO
2.00
DNSOKF
50.0
L63
2.50
DN63LF
63 .5
LIOO
4.00
DNIOOLF
102
Ll60
6.00
DNI60LF
I53
L200
8.00
DN200LF
203
L250
10.00
DN2SOLF
254
L320
12.75
DN320LF
316
L400
16.00
DN400LF
400
LSOO
20.00
DNSOOLF
500
ISO
Caburn-MDC reserves the right to substitute a larger-bore tube according to availability
All dimensions are nominal in millimetres unless specified - Weights given are approximate
MDC Vacuum Europe
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Euro equivalent
OD mm
Section 1.2
Flanges and fittings
ISO LF Flanges
Claw-clamps and bolt rings
Claw-clamp
Single clamp
Double clamp
I
l_
Thickness
{
17
19
23
Features
10
t
• Dimensions apply
t o both styles
ISO LF flange
• ofFastens
comparable size
• Quick make and break
• Zinc-plated steel bolt
claw
• Aluminium
construction
Requires centring ring
• with
elastomer gasket
Other types of clamp
• available
on request
Flange
size
A
B
c
D
Thread
Reference
Part
number
Single claw
DN63-IOOLF
24
24
20
16.3
MS
SCC63/ IOO
1130000
DN 160-250LF
2S
24
20
20.3
MIO
SCCI60/250
1130001
DN320-500LF
34
30
25
26.3
Ml2
SCC320/500
1130002
Double claw
DN63-IOOLF
34
24
20
16.3
MS
DCC63 / IOO
1130008
DN 160-250LF
2S
24
20
20.3
MIO
DCCI60/250
1130009
DN320-500LF
34
30
25
26.3
Ml2
DCC320/500
1130010
Double claw-clamp assemblies are commonly used for making vacuum seal connections.
Assembly is simplified by the 360° rotatable flanges and the self-centring feature of the
centring ring. Single claw-clamp assemblies are used to mate a clamp-style to a threaded
bolt-style such as on a gate valve. The vacuum seal is made by compressing the 0-ring
between the mating flanges. This is done by alternately spanner-tightening opposing pairs of
clamps until the first metal-to-metal contact is made between the inner surfaces of the
flanges and the spacing lip of the centring ring.
Bolt ring claw-clamp to bolt flange adaptor
Rot at able
bolt ring
Retaining r ing
fits in groove
r
Seal side o(
claw-clamp
flange
Features
•
Converts claw-clamp
flange to bolt style LF
flange
size
Flange
Ring
OD
Bolt
holes
size
Hole
Bolt
circle
;I
l
_ _ _ Fits inside _ __
bolt ring
1-
Thickness
Reference
)
J
Part
number
DN63LF
130
4
9
110
12
L63-RBF
DN IOOLF
165
9
145
12
LIOO-RBF
853000
853001
Aluminium construction
DNI60LF
225
s
s
9
200
16
LI60-RBF
853002
Includes retainer ring
DN200LF
2S5
12
11
260
16
L200-RBF
DN250LF
335
12
11
310
16
L250-RBF
853003
853004
•
Bolt fastening
•
•
@
~
•
Does not include
claw-clamp flange
•
Requires centring ring
with elastomer gasket
and bolts
Slip the bolt ring over a standard claw-clamp style flange and install the retaining ring.
After the bolt ring has been rotated to align the bolt holes, the vacuum seal is made by
alternately spanner-tightening opposing pairs of bolts. One complete rotatable bolt ring
assembly consists of one aluminium bolt ring and one retaining ring.
All dimensions are nominal in millimetres unless specified- Weights given are approximate
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MDC Vacuum Europe
Flanges and fittings
Section 1.2
ISO LF Flanges
Centring ring assemblies
~- A
., j
B
B
~
-=----------=1
T
L- A -~
Aluminium centring and spacer ring Viton® 0-ring
ReplacementViton® 0-ring
•
Maximum bakeout temperature 200°C
•
Maximum bakeout temperature 200°C
•
Sustained use to 150°C
•
Sustained use to 150°C
ISO LF
flange
A
B
Reference
DN63LF
70
4
L63-CR
DNIOOLF
102
4
LIOO-CR
DNI60LF
I 53
4
LI60-CR
DN200LF
213
4
L200-CR
DN250LF
261
4
L250-CR
DN320LF
318
5.5
L320-CR
DN400LF
400
5.5
L400-CR
DN500LF
501
5.5
L500-CR
Part
number
ISO LF
810000
810001
810002
810003
810004
810005
810006
810007
Aluminium centring and spacer ring Buna-N® 0-ring
flange
A
DN63LF
76
5.3
L63-0
DNIOOLF
107
5.3
LI00-0
DNI60LF
158
5.3
LI60-0
DN200LF
221
5.3
L200-0
DN250LF
253
5.3
L250-0
DN320LF
330
7.0
L320-0
DN400LF
405
7.0
L400-0
DN500LF
507
7.0
L500-0
B
Reference
Maximum bakeout temperature I 00°C
•
Maximum bakeout temperature I 00°C
•
Sustained use to 80°C
•
Sustained use to 80°C
ISO LF
A
B
Reference
DN63LF
70
4
L63-CRB
DNIOOLF
102
4
LIOO-CRB
DNI60LF
I 53
4
LI60-CRB
DN200LF
213
4
L200-CRB
DN250LF
261
4
L250-CRB
DN320LF
318
5.5
L320-CRB
DN400LF
400
5.5
L400-CRB
DN500LF
501
5.5
L500-CRB
Part
number
810020
810021
810022
810023
810024
810025
810026
810027
ISO LF
flange
A
B
Reference
DN63LF
76
5.3
L63-0B
DNIOOLF
107
5.3
LIOO-OB
DNI60LF
158
5.3
LI60-0B
DN200LF
221
5.3
L200-0B
DN250LF
253
5.3
L250-0B
DN320LF
317
7.0
L320-0B
DN400LF
405
7.0
L400-0B
DN500LF
507
7.0
L500-0B
Stainless steel centring with aluminium spacer ring
Viton® 0-ring
•
Maximum bakeout temperature 200oC
•
Sustained use to 150°C
ISO LF
flange
A
B
Reference
DN63LF
70
4
L63-CRSS
DNIOOLF
102
4
LIOO-CRSS
DNI60LF
I 53
4
LI60-CRSS
DN200LF
213
4
L200-CRSS
DN250LF
261
4
L250-CRSS
DN320LF
318
5.5
L320-CRSS
DN400LF
400
5.5
L400-CRSS
DN500LF
501
5.5
L500-CRSS
Part
number
810009
810011
810012
810013
810014
810015
810016
810017
All dimensions are nominal in millimetres unless specified - Weights given are approximate
MDC Vacuum Europe
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811000
811001
811002
811003
811004
811005
811006
811007
Replacement Buna-N® 0-ring
•
flange
Part
number
1825 280 450
+ 33 (0) 437 651
750
sales@mdcvacuum.co.uk
info@mdcvacuum.fr
Part
number
811020
811021
811022
811023
811024
811025
811026
811027
Section 1.2
Flanges and fittings
ISO LF Flanges
DN63LF
HV Series
Figure
Claw-clamp style
1
Seal side
7- 1
1
f
%a_~~
cm
Air side
LL- : - -J ,
ISO LF
~-­
90
~--
95
__,_j
Rotatable bolt ring option
Features
Used with claw-clamp style flange
f
• HY rated to IX Io-s m bar
r1
• High-temperature rated to 200°C
i
i='
====+======'' ~
~
• Symmetric and non-rotatable geometry
• Rotatable bolt ring available
• Elastomer 0 -ring seal
I
i
Retaining
nng
r1
- '
~ ~ ----_j- ~- ~1
I
• Two methods of fastening
• !SO-compatible and modified ISO design
Figure 2 Bolt style
Specifications
09-4 places
Seal side
Material
Flanges
Rotatable bolt ring
0-rings
Claw-clamps
304ss
Alum inium
Viton® or Buna-N ® elastomer
Alum inium
MS, (4 requi red)
Hexagonal head, MS
Hexagonal
Bolts: 9-14 Nm
lxl0 8 mbar
Vacuum range
Temperature range
Minimum
Intermittent
Viton®
Buna-N ®
-20°C
-20°C
200°C
100°C
Weight
b~ ~ ~
~
Fastening
Claw-clamp
Bolt type
Nut type
Torque
'
- - - ~ : oo
Air side
110
130
'
~
~
12
Figure 3 Centring ring assembly
4
8
Sustained
150°C
'
27 kg maximum
ring
sooc
Centring
Dimensions
Clamp style
Bolt style
95 O D x 76 ID maximum
130 O D x 76 ID maximum
A rotatable bolt ring
assembly is used to add bolt
holes to a standard clawclamp style ISO LF flange.
An assembly consists of one
aluminium bolt ring and one
retaining ring. The retaining
ring fits into a groove on a
claw-clamp style flange and
holds the bolt ring onto the
flange. Replacement retaining
rings are also available
separately.
Tube OD
nominal
Figure
Dimensions in blue are common to all flanges
Centring ring capture groove on blank flanges is 6.4 wide
Flange
reference
Fastening
method
Wt
kg
Reference
Part
number
Blank
Claw-clamp
0.5
L63-B
2
Blank
Bolt
1.3
L63-BB
2
Weld
Bolt
1.3
L63-BW
Weld
Claw-clamp
0.3
L63-W
812000
852000
850009
813023
Optional flange converter
Wt
kg
Reference
Part
number
Rotatable bolt ring assembly
0.9
L63-RBF
Retaining ring
0.1
L63-RR
76
76
853000
853020
All dimensions are nominal in millimetres unless specified- Weights given are approximate
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Ill
MDC Vacuum Europe
Flanges and fittings
Section 1.2
ISO LF Flanges
DNIOOLF
HV Series
Figure I Claw-clamp style
r
Seal side
Air side
102
-1
t
6_ - - - -t.
lt
:J
108 J Jl
115 _ _ _
125
ISO LF
1-- - - - 130 _ _ _____,_,
Rotatable bolt ring option
Used with claw-clamp style flange
Features
o-s m bar
•
HV rated to I X I
•
High-temperature rated to 200°C
~
•
Symmetric and non-rotatable geometry
•
Rotatable bolt ring available
I ~
i
r
===i====·~ ~
i='
Elastomer 0-ring seal
•
Two methods of fastening
•
!SO-compatible and modified ISO design
145 -~ I
Figure 2 Bolt style
09-8 places
Seal side
Material
Flanges
Rotatable bolt ring
0-rings
Claw-clamps
304ss
Aluminium
Viton® or Buna- N® elastome r
Aluminium
Fastening
Claw-clamp
Bolt type
Nut type
Torque
M8, (8 requ ired)
Hexagonal head, M8
Hexagonal
Bolts: 9-14 Nm
I xI 0 ' m bar
Vacuum range
Minimum
-20°C
-20°C
Intermittent
200°C
100°C
Weight
Dimensions
Clamp style
Bolt style
A rotatable bolt ring
assembly is used to add
bolt holes to a standard
claw-clamp style ISO LF
flange . An assembly
consists of one aluminium
bolt ring and one retaining
ring. The retaining ring fits
into a groove on a clawclamp style flange and
holds the bolt ring onto
the flange. Replacement
retaining rings are also
available separately.
Sustained
150°C
80°C
27 kg maximum
I 30.0 OD x I08 ID maximum
I 65.1 OD x I08 ID maximum
Tube OD
nominal
Flange
Figure
reference
~ ~ ~?
Air side
I
t
~~~ ~ - r
I
~·-
~
145 -
--1
I
12
165 ~
Figure 3 Centring ring assembly
4
8
L
t ( L___
Spacer ring
t
I
I 02 _ _ _
~ I
j ~Centring
Dimensions in blue are common to all flanges
Centring ring capture groove on blank flanges is 6.4 wide
Fastening
method
Wt
kg
Reference
Part
number
Blank
Claw-clamp
0.4
LIOO-B
2
Blank
Bolt
2.0
LIOO-BB
2
W eld
Bolt
2.0
LIOO-BW
W eld
Claw-clamp
0.3
LIOO-W
812001
852001
850010
813024
Optional flange converter
Wt
kg
Reference
Part
number
Rotatable bolt ring assembly
0.9
LIOO-RBF
Retaining ring
0. 1
LIOO-RR
108
108
All dimensions are nominal in millimetres unless specified - Weights given are approximate
MDC Vacuum Europe
1+2
_j
165
Specifications
Temperature range
Viton®
Buna-N®
t
i
~
•
~eta ining
nng
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Ill
I""!
853001
853021
ring
Section 1.2
Flanges and fittings
ISO LF Flanges
DN 160LF
HV Series
Figure I Claw-clamp style
r
-
153 -
Seal side
~I
Air side
1
~
+
12
ISO LF
Rotatable bolt ring option
Features
Used with claw-clamp style flange
•
HV rated to IX Io-s m bar
•
High-temperature rated to 200°C
•
Symmetric and non-rotatable geometry
•
Rotatable bolt ring available
•
Elastomer 0-ring seal
•
Two methods of fastening
•
!SO-compatible and modified ISO design
r
Retaining
ring
i
================~
bl ~
1
~
~-----
200
225
~ i [1 _----._j
~
-----~
6
I
Figure 2 Bolt style
Specifications
I I dia, 8 places
Seal side
Material
Flanges
Rotatable bolt ring
0-rings
Claw-clamps
304ss
Alum inium
Viton® or Buna-N ® elastomer
Alum inium
--Air side
~
Fastening
Claw-clamp
Bolt type
Nut type
Torque
M I 0, (8 req ui red)
Hexagonal head, M I 0
Hexagonal
Bolts: 9-14 Nm
Vacuum range
Temperature range
Minimum
Intermittent
-20°C
-20°C
200°C
100°C
Weight
225
4
~
''
16
8.3
I /4~-------~J
L.
J ~entring
Sustained
150°C
80°C
200
Figure 3 Centring ring assembly
lxiO ' mbar
Viton®
Buna-N®
'
Wi i ~
~ ~
Spacer ring /
153
ring
5 kg maximum
Dimensions
180.1 OD x 153 ID maximum
225.0 OD x 153 ID maximum
Clamp style
Bolt style
A rotatable bolt ring
assembly is used to add bolt
holes to a standard clawclamp style ISO LF flange .
An assembly consists of one
aluminium bolt ring and one
retaining ring. The retaining
ring fits into a groove on a
claw-clamp style flange and
holds the bolt ring onto the
flange . Replacement retaining
rings are also available
separately.
Tube OD
nominal
Figure
Dimensions in blue are common to all flanges
Centring ring capture groove on blank flanges is 6.4 wide
Flange
reference
Fastening
method
Wt
kg
Reference
Part
number
Blank
Claw-clamp
2.3
LI60-B
2
Blank
Bolt
2.0
LI60-BB
2
Weld
Bolt
2.0
LI60-BW
Weld
Claw-clamp
0.8
LI60-W
7812002
7852002
7850011
7813025
Wt
kg
Reference
Part
number
Rotatable bolt ring assembly
1.4
LI60-RBF
Retaining ring
0.2
LI60-RR
159
159
Optional flange converter
7853002
7853022
All dimensions are nominal in millimetres unless specified- Weights given are approximate
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MDC Vacuum Europe
Flanges and fittings
Section 1.2
ISO LF Flanges
DN200LF
HV Series
Figure I Claw-clamp style
-.
- - - 213 - -1
Seal side
~m~
Air side
/
I_
219 -
L
ISO LF
t
~
I
225
J
I
12
J
: -- - - - 235
-----~
: -- - - - 240
------1
Rotatable bolt ring option
Features
Used with claw-clamp style flange
• HV rated to IX Io-s mbar
~
• High-temperature rated to 200°C
• Symmetric and non-rotatable geometry
i
I
Retaining
nng
====f====·~ ~
i='
1
i
1.-
• Rotatable bolt ring available
!
~6
260
285
..
1
• Elastomer 0-ring seal
• Two methods of fastening
• !SO-compatible and modified ISO design
Figure 2 Bolt style
Specifications
Seal side
011- 12 places
Material
Flanges
Rotatable bolt ring
0-rings
Claw-clamps
m·m~~~
l ~~~
'~·_j 1
~~ ~
Air side
304ss
Aluminium
Viton® or Buna-N® elastomer
A luminium
=:f__
HTW
__,
285
'
5.6
'
16
-----~
Fastening
Claw-clamp
Bolt type
Nut type
Torque
M I 0, (I 2 required)
Hexagonal head, M I 0
Hexagonal
Bolts: 9-14 Nm
Vacuum range
Temperature range
Viton®
Buna-N®
Figure 3 Centring ring assembly
Intermittent
200°C
100°C
Minimum
-20°C
-20°C
Weight
Sustained
150°C
sooc
1.4 kg maximum
Dimensions
A rotatable bolt ring
assembly is used to add
bolt holes to a standard
claw-clamp style ISO LF
flange. An assembly
consists of one aluminium
bolt ring and one retaining
ring. The retaining ring fits
into a groove on a clawclamp style flange and
holds the bolt ring onto
the flange. Replacement
retaining rings are also
available separately.
L
Tube OD
nominal
219
219
Figure
_l
'""" ""'f/L
240 OD x 213 ID maximum
285 OD x 213 ID maximum
Clamp style
Bolt style
8.3
4
l x iO ' mbar
213
ring
Dimensions in blue are common to all flanges
Centring ring capture groove on blank flanges is 6.4 wide
Flange
reference
Fastening
method
Wt
kg
Reference
L200- BW
7812003
7852003
7813026
850012
Reference
Part
number
Blank
Claw-clamp
2.0
L200-B
2
Blank
Bolt
8.0
L200-BB
I
Weld
Weld
Claw-clamp
Bolt
1.0
1.0
L200-W
2
Optional flange converter
Wt
kg
Rotatable bolt ring assembly
2.7
L200-RBF
Retaining ring
0.2
L200-RR
All dimensions are nominal in millimetres unless specified - Weights given are approximate
MDC Vacuum Europe
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Ill
Part
number
7853003
7853023
Section 1.2
Flanges and fittings
ISO LF Flanges
DN250LF
HV Series
Figure
Claw-clamp style
-
- - 261
- --
t
Seal side
Air side
+
12
ISO LF
Rotatable bolt ring option
Features
Used with claw-clamp style flange
• HY rated to IxI Q-8 m bar
• High-temperature rated to 200oC
r
Retaining
ring
================~
t
VIE8l\~==============ir~~81 ------.
• Symmetric and non-rotatable geometry
~--~---
• Rotatable bolt ring available
• Elastomer 0-ring seal
1
1
--
~
: ; :
I~
• Claw-clamp style or bolt style fastening
• !SO-compatible design
Figure 2 Bolt style
Specifications
0 I I - 12 places
Material
Seal side
Flanges
Rotatable bolt ring
0-rings
Claw-clamps
304ss
Alum ini um
Viton® or Buna-N® elastomer
Alum ini um
~
Fastening
Claw-clamp
Bolt type
Nut type
Torque
M I 0, (6-12 required)
Hexagonal head, M I 0
Hexagonal
Bolts: 9-14 Nm
8
Vacuum range
Temperature range
Viton®
Buna-N®
lxi0- mbar
Minimum
-20°C
-20°C
Intermittent
200°C
100°C
Sustained
150°C
sooc
'
'I@ ~
~ ~~
Air side
~
310
335
I
J
+
16
Figure 3 Centring ring assembly
4
8.3
L
t
, ~.""'"' ''"'
~'""'"'f7l_ _ _,. _ ~
_
261
Weight
34 kg maximum
Dimensions
Clamp style
Bolt style
290 OD x 261 ID maximum
335 OD x 261 ID maximum
A rotatable bolt ring
assembly is used to add bolt
holes to a standard clawclamp style ISO LF flange .
An assembly consists of one
aluminium bolt ring and one
retaining ring. The retaining
ring fits into a groove on a
claw-clamp style flange and
holds the bolt ring onto the
flange . Replacement retaining
rings are also available
separately.
Tube OD
nominal
Flange
Figure
Dimensions in blue are common to all flanges
Centring ring capture groove on blank flanges is 6 .4 wide
reference
Fastening
method
Wt
kg
Reference
Part
number
Blank
Claw-clamp
6.0
L250-B
Weld
Claw-clamp
1.4
L250-W
2
Blank
Bolt
2.0
L250-BB
2
Weld
Bolt
4.3
L250-BW
7812004
7813027
7852004
7850013
Optional flange converter
Wt
kg
Reference
Part
number
Rotatable bolt ring assembly
4.5
L250-RBF
Retaining ring
0.2
L250-RR
267
267
7853004
7853024
All dimensions are nominal in millimetres unless specified- Weights given are approximate
Ill
United Kingdom
l""l Germany
n France
+ 44 (0)
1825 280 450 sales@mdcvacuum.co.uk
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+ 33 (0) 437 651 750 info@mdcvacuum.fr
MDC Vacuum Europe
Flanges and fittings
Section 1.2
ISO LF Flanges
DN320LF
HV Series
Figure I Claw-clamp style
1
318 - --
_t
Seal side
rml
Air side
M
L_ : : _ Jj
b
ISO LF
Features
•
17
j
365
370
Rotatable bolt ring option
Used with claw-clamp style flange
• HV rated to IX Io-s m bar
I
/
• High-temperature rated to 200°C
Retaining
nng
1
============~
E1 ~
• Symmetric and non-rotatable geometry
~ ~
I t-- - ------~ 1! ,
• Rotatable bolt ring available
395
~----- 425
• Elastomer 0-ring seal
~
• Claw-clamp style or bolt style fastening
• !SO-compatible design
Figure 2 Bolt style
Specifications
Material
Flanges
Rotatable bolt ring
0-rings
Claw-clamps
Seal side
304ss
Aluminium
Viton® or Buna- N® e lasto me r
Aluminium
Fastening
Claw-clamp
Bolt type
Nut type
Torque
M 12, (8-12 requ ired)
Hexagonal head, M I2
Hexagonal
Bolts: 9-14 Nm
lxiO-' mbar
Vacuum range
Temperature range
Viton®
Buna-N®
Minimum
-20°C
-20°C
Weight
Figure 3 Centring ring assembly
5.5
14
i___ __~----------~-
l
1!
Spacer ring
23 kg maximum
Dimensions
Clamp style
Bolt style
A rotatable bolt ring assembly
is used to add bolt holes to a
standard claw-clamp style ISO
LF flange . An assembly
consists of one aluminium
bolt ring and one retaining
ring. The retaining ring fits
into a groove on a claw-clamp
style flange and holds the bolt
ring onto the flange .
Replacement retaining rings
are also available separately.
Sustained
150°C
80°C
Intermittent
200°C
100°C
Air side
370 O D x 3 18 ID maximum
425 O D x 318 ID maximum
Tube OD
nominal
Figure
318
Dimensions in blue are common to all flanges
Flange
reference
Fastening
method
Wt
kg
Reference
Blank
Weld
Claw-clamp
14.5
L320-B
Claw-clamp
3.6
L320-W
Blank
Bolt
23.0
L320-BB
2
Weld
Bolt
11.4
L320-BW
Wt
kg
Reference
Part
number
Rotatable bolt ring assembly
SA
L320-RBF
Retaining ring
0.2
L320-RR
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n France
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l!"l
Part
number
2
Optional flange converter
Ill
Centring ring
Centring ring capture groove on blank flanges is 6.4 wide
All dimensions are nominal in millimetres unless specified - Weights given are approximate
MDC Vacuum Europe
J
7812005
7813005
7852005
7850005
324
324
L
7853005
7853025
Section 1.2
Flanges and fittings
ISO LF Flanges
DN400LF
HV Series
.J
/
Figure
Claw-clamp style
r
Seal side
-
~
Air side
+
400 -
1
~
~
r- ~: -~J
ISO LF
~ ----
450 _ _ __
Features
Rotatable bolt ring option
• HY rated to IX Io-s m bar
Used with claw-clamp style flange
• High-temperature rated to 200°C
17
_,
r
t1 ~======l====d~
i
• Symmetric and non-rotatable geometry
1
81
:~: =======--J-----"1-----::
• Rotatable bolt ring available
• Elastomer 0-ring seal
i
Retaining
nng
1 ..
• Claw-clamp style or bolt style fastening
• !SO-compatible design
Figure 2 Bolt style
Specifications
014- 16 places
Material
Seal side
Flanges
Rotatable bolt ring
0-rings
Claw-clamps
304ss
A luminium
Viton® or Buna-N ® elastomer
Alum inium
1
~m~ ~~~==~:====&~~
~ ~__i
Air side
1
Fastening
Claw-clamp
Bolt type
Nut type
Torque
M 12, (8-1 6 requi red)
Hexagonal head, M 12
Hexagonal
Bolts: 9-14 N m
Vacuum range
Temperature range
Viton®
Buna-N ®
lxiO·' mbar
Minimum
-20°C
-20°C
Intermittent
200°C
100°C
Weight
Sustained
150°C
sooc
480 -~ 1 !
1
~
~
510
Figure 3 Centring ring assembly
55
14
~
Spacer ring
1--- -
:
400 _ _
34 kg maximum
j ~:
Centring ring
Dimensions
450 OD x 400 ID maximum
510 OD x 400 ID maximum
Clamp style
Bolt style
A rotatable bolt ring
assembly is used to add bolt
holes to a standard clawclamp style ISO LF flange .
An assembly consists of one
aluminium bolt ring and one
retaining ring. The retaining
ring fits into a groove on a
claw-clamp style flange and
holds the bolt ring onto the
flange . Replacement retaining
rings are also available
separately.
Tube OD
nominal
Figure
Flange
reference
Fastening
method
Wt
kg
Reference
Part
number
Blank
Claw-clamp
20.5
L400-B
Weld
Claw-clamp
4.5
L400-W
2
Blank
Bo lt
34.0
L400-BB
2
Weld
Bo lt
11.4
L400-BW
7812006
7813006
7852006
7850006
Wt
kg
Reference
Part
number
406
406
Dimensions in blue are common to all flanges
Centring ring capture groove on blank flanges is 6.4 wide
Optional flange converter
Rotatable bolt ring asse mbly
13.6
L400-RBF
Retaining ring
0.2
L400-RR
7853006
7853026
All dimensions are nominal in millimetres unless specified- Weights given are approximate
Ill
United Kingdom
l'!"'l Germany
n France
+ 44 (0)
1825 280 450 sales@mdcvacuum.co.uk
+ 49 (0) 2305 947 508 sales@mdcvacuum.de
+ 33 (0) 437 651 750 info@mdcvacuum.fr
MDC Vacuum Europe
Flanges and fittings
Section 1.2
ISO LF Flanges
DNSOOLF
HV Series
Figure I Claw-clamp style
'I
102
Air side
--~
+
- - - 501
Seal side
I
'
~
l
17
ISO LF
Rotatable bolt ring option
Used with claw-clamp style flange
Features
• HV rated to IX Io-s m bar
r
• High-temperature rated to 200°C
Retaining
nng
======F===='
~·
ki i~
~ ====+=====~
~ ·i ki _ _ i
• Symmetric and non-rotatable geometry
• Rotatable bolt ring available
I
~---
~-----
• Elastomer 0-ring seal
---·~ ~
580
610 _ _ _ _
__j
• Claw-clamp style or bolt style fastening
• !SO-compatible design
Figure 2 Bolt style
Specifications
013.7 - 16 places
Seal side
Material
Flanges
Rotatable bolt ring
0-rings
Claw-clamps
304ss
Aluminium
Viton® or Buna- N® e lasto me r
Aluminium
Fastening
Claw-clamp
Bolt type
Nut type
Torque
M 12, ( 12-16 requ ired)
Hexagonal head, M I2
Hexagonal
Bolts: 9-14 Nm
'
~~~ ~
~~?~~~~·~~~
~~
I
f-
~-----
580
Minimum
-20°C
-20°C
--·~
610 _ _ _ _
:,
__j
Figure 3 Centring ring assembly
494
--~
14
sooc
499
43 kg maximum
Dimensions
Clamp style
Bolt style
A rotatable bolt ring
assembly is used to add bolt
holes to a standard clawclamp style ISO LF flange.
An assembly consists of one
aluminium bolt ring and one
retaining ring. The retaining
ring fits into a groove on a
claw-clamp style flange and
holds the bolt ring onto the
flange . Replacement retaining
rings are also available
separately.
'
Sustained
150°C
Intermittent
200°C
100°C
Weight
550 O D x 50 I ID maximum
610 O D x 501 ID maximum
Tube OD
nominal
Flange
Figure
Dimensions in blue are common to all flanges
Centring ring capture groove on blank flanges is 6.4 wide
reference
Fastening
method
Wt
kg
Reference
Part
number
Blank
Claw-clamp
31 _4
LS00-8
Weld
Claw-clamp
5.4
LSOO-W
2
Blank
Bolt
43.0
LSOO-BB
2
Weld
Bolt
25.0
LSOO-BW
7812007
7813007
7852007
7850007
Wt
kg
Reference
Part
number
Rotatable bolt ring assembly
16.0
LSOO-RBF
Retaining ring
0.2
LSOO-RR
508
508
Optional flange converter
All dimensions are nominal in millimetres unless specified - Weights given are approximate
MDC Vacuum Europe
__i
lxiO-' mbar
Vacuum range
Temperature range
Viton®
Buna-N®
Air side
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n France
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Ill
7853007
7853027
Section 1.2
Flanges and fittings
ISO LF Fittings
Bolt sets and replacement retaining rings
Bolt sets for two bolted flanges
Features
• Nuts and washers included
ISO LF
Flange
Bolt
size
Number
in set
Reference
Part
number
DN63LF
MS X40
25
MS-40
DN IOOLF
MS X40
25
MS-40
DNI60LF
MIO X 50
12
MI0-50(12)
DN200LF
MIO X 50
12
MI0-50(12)
DN250LF
MIO X 50
12
MI0-50(12)
DN300LF
Ml2 X 60
16
Ml2-60 (16)
DN400LF
Ml2 X 60
16
Ml2-60 (16)
DN500LF
Ml2 X 60
16
Ml2-60 (16)
1113025
1113025
1113040
1113040
1113040
1113050
1113050
1113050
Reference
Part
number
Stainless steel
Bolt sets for joining bolted flanges to tapped flanges
Features
• Washer included
ISO LF
Flange
Stainless steel
Bolt
size
Number
in set
DN63LF
MS
X
20
25
DNIOOLF
MS
X
20
25
DNI60LF
MIO
X
30
12
DN200LF
MIO
X
30
12
DN250LF
MIO x 30
12
DN320LF
Ml2
X
40
16
DN400LF
Ml2
X
40
16
DN500LF
Ml2
X
40
16
Ml2-40 (16)
1113009
1113009
1113011
1113011
1113011
1113012
1113012
1113012
Reference
Part
number
MS-20
MS-20
MI0-30(12)
MI0-30(12)
MI0-30(12)
Ml2-40 (16)
Ml2-40 (16)
Replacement retaining rings
ISO LF
Flange
Steel For rotatable bolt rings
DN63LF
L63-RR
DN IOOLF
LIOO-RR
DNI60LF
LI60-RR
DN200LF
L200-RR
DN250LF
L250-RR
DN320LF
L320-RR
DN400LF
L400-RR
DN500LF
L500-RR
7853020
7853021
7853022
7853023
7853024
7853025
7853026
7853027
All dimensions are nominal in millimetres unless specified- Weights given are approximate
United Kingdom
!'!'! Germany
n France
Ill
+ 44 (0) 1825 280 450 sales@mdcvacuum_co_uk
+ 49 (0) 2305 947 508 sales@mdcvacuum_de
+ 33 (0) 437 651 750
info@mdcvacuum.fr
MDC Vacuum Europe