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KF Centering Rings

With KF seals for different temperature ranges or media resistance, you can create vacuum-tight connections up to a high vacuum.

KF Centering Rings, O-Ring | 301810
Nominal diameter
25
Connection type
KF
Diameter
1.024 ″
Centering ring material
Aluminium
Gasket material
FKM
Bakeout temperature
302 °F
Min. operating temperature
14 °F
Purity class
PCS
Nominal diameter
25
Connection type
KF
Diameter
26 mm
Centering ring material
Aluminium
Gasket material
FKM
Bakeout temperature
150 °C
Min. operating temperature
-10 °C
Purity class
PCS
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available
KF Outer Centering Rings, O-Ring | 301811
Nominal diameter
25
Connection type
KF
Diameter
1.654 ″
Centering ring material
Aluminium
Support ring material
Aluminium
Gasket material
NBR
Purity class
PCS
Nominal diameter
25
Connection type
KF
Diameter
42 mm
Centering ring material
Aluminium
Support ring material
Aluminium
Gasket material
NBR
Purity class
PCS
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available
KF Outer Centering Rings, O-Ring | 301812
Nominal diameter
25
Connection type
KF
Diameter
1.654 ″
Centering ring material
Aluminium
Support ring material
Aluminium
Gasket material
FKM
Purity class
PCS
Nominal diameter
25
Connection type
KF
Diameter
42 mm
Centering ring material
Aluminium
Support ring material
Aluminium
Gasket material
FKM
Purity class
PCS
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available
KF Outer Centering Rings, O-Ring | 353245
Nominal diameter
25
Connection type
KF
Diameter
1.654 ″
Centering ring material
Aluminium
Support ring material
Aluminium
Gasket material
FKM
Purity class
PC2
Nominal diameter
25
Connection type
KF
Diameter
42 mm
Centering ring material
Aluminium
Support ring material
Aluminium
Gasket material
FKM
Purity class
PC2
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on request
KF Centering Rings, blind, without O-Ring | 313568
Nominal diameter
25
Connection type
KF
Diameter
1.031 ″
Centering ring material
Stainless steel 316L
Purity class
PCS
Nominal diameter
25
Connection type
KF
Diameter
26,2 mm
Centering ring material
Stainless steel 316L
Purity class
PCS
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available
KF Centering Rings without O-Ring | 301826
Nominal diameter
25
Connection type
KF
Diameter
1.031 ″
Centering ring material
Stainless steel 304L
Purity class
PCS
Nominal diameter
25
Connection type
KF
Diameter
26,2 mm
Centering ring material
Stainless steel 304L
Purity class
PCS
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available
KF Centering Rings without O-Ring | 301827
Nominal diameter
25
Connection type
KF
Diameter
1.031 ″
Centering ring material
Stainless steel 316L
Purity class
PCS
Nominal diameter
25
Connection type
KF
Diameter
26,2 mm
Centering ring material
Stainless steel 316L
Purity class
PCS
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available
KF Centering Rings with Sinter Metal Filter | 410509
Connection type
KF
Nominal diameter
25
Diameter
1.024 ″
Meshsize
20 µm
Centering ring material
Stainless steel 303
Gasket material
FKM
Bakeout temperature
212 °F
Purity class
PCS
Connection type
KF
Nominal diameter
25
Diameter
26 mm
Meshsize
20 µm
Centering ring material
Stainless steel 303
Gasket material
FKM
Bakeout temperature
100 °C
Purity class
PCS
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available
KF Mesh Centering Ring | 301853
Nominal diameter
25
Connection type
KF
Diameter
1.024 ″
Meshsize
1 µm
Wire diameter
0.012 ″
Centering ring material
Stainless steel 304
Gasket material
NBR
Purity class
PCS
Nominal diameter
25
Connection type
KF
Diameter
26 mm
Meshsize
1 µm
Wire diameter
0,3 mm
Centering ring material
Stainless steel 304
Gasket material
NBR
Purity class
PCS
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available
KF Mesh Centering Ring | 301854
Nominal diameter
25
Connection type
KF
Diameter
1.024 ″
Meshsize
0.5 µm
Wire diameter
0.007 ″
Centering ring material
Stainless steel 304
Gasket material
FKM
Purity class
PCS
Nominal diameter
25
Connection type
KF
Diameter
26 mm
Meshsize
0,5 µm
Wire diameter
0,19 mm
Centering ring material
Stainless steel 304
Gasket material
FKM
Purity class
PCS
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in production
KF O-Rings | 301864
Connection type
KF
Nominal diameter
25
Diameter
1.102 ″
Gasket material
NBR
Bakeout temperature
212 °F
Min. operating temperature
14 °F
Purity class
PCS
Connection type
KF
Nominal diameter
25
Diameter
28 mm
Gasket material
NBR
Bakeout temperature
100 °C
Min. operating temperature
-10 °C
Purity class
PCS
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available
KF Centering Rings, O-Ring | 301881
Nominal diameter
25
Connection type
KF
Diameter
1.024 ″
Centering ring material
Stainless steel 304L
Gasket material
NBR
Bakeout temperature
212 °F
Min. operating temperature
14 °F
Purity class
PCS
Nominal diameter
25
Connection type
KF
Diameter
26 mm
Centering ring material
Stainless steel 304L
Gasket material
NBR
Bakeout temperature
100 °C
Min. operating temperature
-10 °C
Purity class
PCS
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available
KF O-Rings | 404521
Connection type
KF
Nominal diameter
25
Diameter
1.102 ″
Gasket material
MVQ
Bakeout temperature
392 °F
Min. operating temperature
-67 °F
Purity class
PCS
Connection type
KF
Nominal diameter
25
Diameter
28 mm
Gasket material
MVQ
Bakeout temperature
200 °C
Min. operating temperature
-55 °C
Purity class
PCS
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available
KF Centering Rings, O-Ring | 301882
Nominal diameter
25
Connection type
KF
Diameter
1.024 ″
Centering ring material
Stainless steel 304L
Gasket material
FKM
Bakeout temperature
302 °F
Min. operating temperature
14 °F
Purity class
PCS
Nominal diameter
25
Connection type
KF
Diameter
26 mm
Centering ring material
Stainless steel 304L
Gasket material
FKM
Bakeout temperature
150 °C
Min. operating temperature
-10 °C
Purity class
PCS
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in production
KF Centering Rings, O-Ring | 301883
Nominal diameter
25
Connection type
KF
Diameter
1.024 ″
Centering ring material
Stainless steel 316L
Gasket material
FKM
Bakeout temperature
302 °F
Min. operating temperature
14 °F
Purity class
PCS
Nominal diameter
25
Connection type
KF
Diameter
26 mm
Centering ring material
Stainless steel 316L
Gasket material
FKM
Bakeout temperature
150 °C
Min. operating temperature
-10 °C
Purity class
PCS
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in production
KF Centering Rings, O-Ring | 340142
Nominal diameter
25
Connection type
KF
Diameter
1.024 ″
Centering ring material
Stainless steel 316L
Gasket material
FKM
Bakeout temperature
302 °F
Min. operating temperature
14 °F
Purity class
PCS
Nominal diameter
25
Connection type
KF
Diameter
26 mm
Centering ring material
Stainless steel 316L
Gasket material
FKM
Bakeout temperature
150 °C
Min. operating temperature
-10 °C
Purity class
PCS
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on request
KF Centering Rings, O-Ring | 301885
Nominal diameter
25
Connection type
KF
Diameter
1.024 ″
Centering ring material
Stainless steel 316L
Gasket material
FKM low outgassing
Bakeout temperature
302 °F
Min. operating temperature
14 °F
Purity class
PCS
Nominal diameter
25
Connection type
KF
Diameter
26 mm
Centering ring material
Stainless steel 316L
Gasket material
FKM low outgassing
Bakeout temperature
150 °C
Min. operating temperature
-10 °C
Purity class
PCS
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available
KF Outer Centering Rings with Support Ring | 301889
Nominal diameter
25
Connection type
KF
Diameter
1.654 ″
Centering ring material
Aluminium
Support ring material
Stainless steel 304L
Gasket material
NBR
Purity class
PCS
Nominal diameter
25
Connection type
KF
Diameter
42 mm
Centering ring material
Aluminium
Support ring material
Stainless steel 304L
Gasket material
NBR
Purity class
PCS
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available
KF Outer Centering Rings with Support Ring | 301890
Nominal diameter
25
Connection type
KF
Diameter
1.654 ″
Centering ring material
Aluminium
Support ring material
Stainless steel 304L
Gasket material
FKM
Purity class
PCS
Nominal diameter
25
Connection type
KF
Diameter
42 mm
Centering ring material
Aluminium
Support ring material
Stainless steel 304L
Gasket material
FKM
Purity class
PCS
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available
KF Outer Centering Rings with Support Ring | 301891
Nominal diameter
25
Connection type
KF
Diameter
1.654 ″
Centering ring material
Aluminium
Support ring material
Stainless steel 316L
Gasket material
FKM
Purity class
PCS
Nominal diameter
25
Connection type
KF
Diameter
42 mm
Centering ring material
Aluminium
Support ring material
Stainless steel 316L
Gasket material
FKM
Purity class
PCS
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available
KF Outer Centering Rings with Support Ring | 301895
Nominal diameter
25
Connection type
KF
Diameter
1.654 ″
Centering ring material
PTFE
Support ring material
PTFE
Gasket material
FKM
Purity class
PCS
Nominal diameter
25
Connection type
KF
Diameter
42 mm
Centering ring material
PTFE
Support ring material
PTFE
Gasket material
FKM
Purity class
PCS
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in production
KF O-Rings | 301897
Connection type
KF
Nominal diameter
25
Diameter
1.102 ″
Gasket material
FKM
Bakeout temperature
302 °F
Min. operating temperature
14 °F
Purity class
PCS
Connection type
KF
Nominal diameter
25
Diameter
28 mm
Gasket material
FKM
Bakeout temperature
150 °C
Min. operating temperature
-10 °C
Purity class
PCS
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in production
KF O-Rings | 307187
Connection type
KF
Nominal diameter
25
Diameter
1.102 ″
Gasket material
FKM low outgassing
Bakeout temperature
302 °F
Min. operating temperature
14 °F
Purity class
PCS
Connection type
KF
Nominal diameter
25
Diameter
28 mm
Gasket material
FKM low outgassing
Bakeout temperature
150 °C
Min. operating temperature
-10 °C
Purity class
PCS
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available
KF Reducing Centering Rings | 301902
Nominal diameter
40
Connection type
KF
Diameter
1.614 ″
Centering ring material
Aluminium
Gasket material
NBR
Bakeout temperature
212 °F
Purity class
PCS
Nominal diameter
40
Connection type
KF
Diameter
41 mm
Centering ring material
Aluminium
Gasket material
NBR
Bakeout temperature
100 °C
Purity class
PCS
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available
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