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KF Components

KF components (DIN 28403, ISO 2861) represent the standard connection for vacuum lines up to nominal size DN50 in rough, fine and high vacuum.

KF Centering Rings, O-Ring | 335646
Nominal diameter
40
Connection type
KF
Diameter
1.614 ″
Centering ring material
Stainless steel 316L
Gasket material
FKM
Bakeout temperature
302 °F
Min. operating temperature
14 °F
Purity class
PC1
Nominal diameter
40
Connection type
KF
Diameter
41 mm
Centering ring material
Stainless steel 316L
Gasket material
FKM
Bakeout temperature
150 °C
Min. operating temperature
-10 °C
Purity class
PC1
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on request
KF Centering Rings, O-Ring | 345185
Nominal diameter
40
Connection type
KF
Diameter
1.614 ″
Centering ring material
Stainless steel 316L
Gasket material
FKM
Bakeout temperature
302 °F
Min. operating temperature
14 °F
Purity class
PC2
Nominal diameter
40
Connection type
KF
Diameter
41 mm
Centering ring material
Stainless steel 316L
Gasket material
FKM
Bakeout temperature
150 °C
Min. operating temperature
-10 °C
Purity class
PC2
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on request
KF Centering Rings, O-Ring | 302079
Nominal diameter
40
Connection type
KF
Diameter
1.614 ″
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
40
Connection type
KF
Diameter
41 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 | 302081
Nominal diameter
40
Connection type
KF
Diameter
2.244 ″
Centering ring material
Aluminium
Support ring material
Stainless steel 304L
Gasket material
NBR
Purity class
PCS
Nominal diameter
40
Connection type
KF
Diameter
57 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 | 302083
Nominal diameter
40
Connection type
KF
Diameter
2.244 ″
Centering ring material
Aluminium
Support ring material
Stainless steel 304L
Gasket material
FKM
Purity class
PCS
Nominal diameter
40
Connection type
KF
Diameter
57 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 | 302084
Nominal diameter
40
Connection type
KF
Diameter
2.244 ″
Centering ring material
Aluminium
Support ring material
Stainless steel 316L
Gasket material
FKM
Purity class
PCS
Nominal diameter
40
Connection type
KF
Diameter
57 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 | 340201
Nominal diameter
40
Connection type
KF
Diameter
2.244 ″
Centering ring material
Aluminium
Support ring material
Stainless steel 316L
Gasket material
FKM
Purity class
PC1
Nominal diameter
40
Connection type
KF
Diameter
57 mm
Centering ring material
Aluminium
Support ring material
Stainless steel 316L
Gasket material
FKM
Purity class
PC1
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on request
KF Hose Nipple for PVC Hose | 302085
Nominal diameter
40
Connection type
KF
Outer diameter
2.165 ″
Tube outer diameter
1.496 ″
Flange material
Stainless steel 316L
Purity class
PCS
Nominal diameter
40
Connection type
KF
Outer diameter
55 mm
Tube outer diameter
38 mm
Flange material
Stainless steel 316L
Purity class
PCS
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available
KF Outer Centering Rings with Support Ring | 302087
Nominal diameter
40
Connection type
KF
Diameter
2.244 ″
Centering ring material
PTFE
Support ring material
PTFE
Gasket material
FKM
Purity class
PCS
Nominal diameter
40
Connection type
KF
Diameter
57 mm
Centering ring material
PTFE
Support ring material
PTFE
Gasket material
FKM
Purity class
PCS
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in production
KF O-Rings | 302088
Connection type
KF
Nominal diameter
40
Diameter
1.654 ″
Gasket material
FKM
Bakeout temperature
302 °F
Min. operating temperature
14 °F
Purity class
PCS
Connection type
KF
Nominal diameter
40
Diameter
42 mm
Gasket material
FKM
Bakeout temperature
150 °C
Min. operating temperature
-10 °C
Purity class
PCS
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available
KF O-Rings | 307186
Connection type
KF
Nominal diameter
40
Diameter
1.654 ″
Gasket material
FKM low outgassing
Bakeout temperature
302 °F
Min. operating temperature
14 °F
Purity class
PCS
Connection type
KF
Nominal diameter
40
Diameter
42 mm
Gasket material
FKM low outgassing
Bakeout temperature
150 °C
Min. operating temperature
-10 °C
Purity class
PCS
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available
KF-Clamps, metric | 302216
Nominal diameter
40
Connection type
KF
Outer diameter
2.165 ″
Tube metric
0.394 ″
Flange material
Stainless steel 316L
Purity class
PCS
Nominal diameter
40
Connection type
KF
Outer diameter
55 mm
Tube metric
10 mm
Flange material
Stainless steel 316L
Purity class
PCS
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available
KF-Clamps, imperial | 302218
Nominal diameter
40
Connection type
KF
Outer diameter
2.165 ″
Tube imperial
1/2 in
Flange material
Stainless steel 316L
Purity class
PCS
Nominal diameter
40
Connection type
KF
Outer diameter
55 mm
Tube imperial
1/2 in
Flange material
Stainless steel 316L
Purity class
PCS
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in production
KF-Clamps, metric | 302219
Nominal diameter
40
Connection type
KF
Outer diameter
2.165 ″
Tube metric
0.236 ″
Flange material
Stainless steel 316L
Purity class
PCS
Nominal diameter
40
Connection type
KF
Outer diameter
55 mm
Tube metric
6 mm
Flange material
Stainless steel 316L
Purity class
PCS
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available
KF-Clamps, imperial | 302220
Nominal diameter
40
Connection type
KF
Outer diameter
2.165 ″
Tube imperial
1/4 in
Flange material
Stainless steel 316L
Purity class
PCS
Nominal diameter
40
Connection type
KF
Outer diameter
55 mm
Tube imperial
1/4 in
Flange material
Stainless steel 316L
Purity class
PCS
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available
KF-Clamps, metric | 302221
Nominal diameter
40
Connection type
KF
Outer diameter
2.165 ″
Tube metric
0.315 ″
Flange material
Stainless steel 316L
Purity class
PCS
Nominal diameter
40
Connection type
KF
Outer diameter
55 mm
Tube metric
8 mm
Flange material
Stainless steel 316L
Purity class
PCS
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available
KF-Clamps, imperial | 302222
Nominal diameter
40
Connection type
KF
Outer diameter
2.165 ″
Tube imperial
3/8 in
Flange material
Stainless steel 316L
Purity class
PCS
Nominal diameter
40
Connection type
KF
Outer diameter
55 mm
Tube imperial
3/8 in
Flange material
Stainless steel 316L
Purity class
PCS
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in production
KF-Face-Seal-Screw Connection, female | 302239
Nominal diameter
40
Connection type
KF
Outer diameter
2.165 ″
Flange material
Stainless steel 316L
Tube imperial
1/2 in
Purity class
PCS
Nominal diameter
40
Connection type
KF
Outer diameter
55 mm
Flange material
Stainless steel 316L
Tube imperial
1/2 in
Purity class
PCS
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available
KF-Face-Seal-Screw Connection, male | 302241
Nominal diameter
40
Connection type
KF
Outer diameter
2.165 ″
Flange material
Stainless steel 316L
Tube imperial
1/2 in
Purity class
PCS
Nominal diameter
40
Connection type
KF
Outer diameter
55 mm
Flange material
Stainless steel 316L
Tube imperial
1/2 in
Purity class
PCS
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available
KF-Face-Seal-Screw Connection, female | 302245
Nominal diameter
40
Connection type
KF
Outer diameter
2.165 ″
Flange material
Stainless steel 316L
Tube imperial
1/4 in
Purity class
PCS
Nominal diameter
40
Connection type
KF
Outer diameter
55 mm
Flange material
Stainless steel 316L
Tube imperial
1/4 in
Purity class
PCS
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in production
KF-Face-Seal-Screw Connection, male | 302247
Nominal diameter
40
Connection type
KF
Outer diameter
2.165 ″
Flange material
Stainless steel 316L
Tube imperial
1/4 in
Purity class
PCS
Nominal diameter
40
Connection type
KF
Outer diameter
55 mm
Flange material
Stainless steel 316L
Tube imperial
1/4 in
Purity class
PCS
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available
KF-Face-Seal-Screw Connection, male | 318906
Nominal diameter
40
Connection type
KF
Outer diameter
2.165 ″
Flange material
Stainless steel 316L
Tube imperial
1/4 in
Purity class
PC2+
Nominal diameter
40
Connection type
KF
Outer diameter
55 mm
Flange material
Stainless steel 316L
Tube imperial
1/4 in
Purity class
PC2+
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available
KF 2-Way Liquid Feedthrough | 302274
Nominal diameter
40
Connection type
KF
Outer diameter
2.165 ″
Flange material
Stainless steel 316L
Tube material
Stainless steel 316L
Purity class
PCS
Nominal diameter
40
Connection type
KF
Outer diameter
55 mm
Flange material
Stainless steel 316L
Tube material
Stainless steel 316L
Purity class
PCS
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in production
KF 2-Way Liquid Feedthrough | 302275
Nominal diameter
40
Connection type
KF
Outer diameter
2.165 ″
Flange material
Stainless steel 316L
Tube material
Stainless steel 316L
Purity class
PCS
Nominal diameter
40
Connection type
KF
Outer diameter
55 mm
Flange material
Stainless steel 316L
Tube material
Stainless steel 316L
Purity class
PCS
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on request
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