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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 Reducing Centering Rings | 301903
Nominal diameter
40
Connection type
KF
Diameter
1.614 ″
Centering ring material
Aluminium
Gasket material
FKM
Bakeout temperature
302 °F
Purity class
PCS
Nominal diameter
40
Connection type
KF
Diameter
41 mm
Centering ring material
Aluminium
Gasket material
FKM
Bakeout temperature
150 °C
Purity class
PCS
$7.00
available
KF Reducing Centering Rings | 301908
Nominal diameter
40
Connection type
KF
Diameter
1.614 ″
Centering ring material
Stainless steel 304
Gasket material
FKM
Bakeout temperature
302 °F
Purity class
PCS
Nominal diameter
40
Connection type
KF
Diameter
41 mm
Centering ring material
Stainless steel 304
Gasket material
FKM
Bakeout temperature
150 °C
Purity class
PCS
$18.00
on request
KF Centering Rings, O-Ring | 301995
Nominal diameter
40
Connection type
KF
Diameter
1.614 ″
Centering ring material
Aluminium
Gasket material
FKM
Bakeout temperature
302 °F
Min. operating temperature
14 °F
Purity class
PCS
Nominal diameter
40
Connection type
KF
Diameter
41 mm
Centering ring material
Aluminium
Gasket material
FKM
Bakeout temperature
150 °C
Min. operating temperature
-10 °C
Purity class
PCS
$6.00
available
KF Outer Centering Rings, O-Ring | 301997
Nominal diameter
40
Connection type
KF
Diameter
2.244 ″
Centering ring material
Aluminium
Support ring material
Aluminium
Gasket material
FKM
Purity class
PCS
Nominal diameter
40
Connection type
KF
Diameter
57 mm
Centering ring material
Aluminium
Support ring material
Aluminium
Gasket material
FKM
Purity class
PCS
$17.10
available
KF Outer Centering Rings, O-Ring | 353246
Nominal diameter
40
Connection type
KF
Diameter
2.244 ″
Centering ring material
Aluminium
Support ring material
Aluminium
Gasket material
FKM
Purity class
PC2
Nominal diameter
40
Connection type
KF
Diameter
57 mm
Centering ring material
Aluminium
Support ring material
Aluminium
Gasket material
FKM
Purity class
PC2
$101.68
on request
KF-G Adapters, G-external Thread with FKM-Gasket | 309608
Nominal diameter
40
Connection type
KF
Outer diameter
2.165 ″
Flange material
Stainless steel 316L
Gasket material
FKM
G pipe thread
G 1 1/2"
Purity class
PCS
Nominal diameter
40
Connection type
KF
Outer diameter
55 mm
Flange material
Stainless steel 316L
Gasket material
FKM
G pipe thread
G 1 1/2"
Purity class
PCS
$65.50
available
KF Centering Rings with Sinter Metal Filter | 410474
Connection type
KF
Nominal diameter
40
Diameter
1.614 ″
Meshsize
0.001 ″
Centering ring material
Stainless steel 304
Gasket material
FKM
Bakeout temperature
212 °F
Purity class
PCS
Connection type
KF
Nominal diameter
40
Diameter
41 mm
Meshsize
0,02 mm
Centering ring material
Stainless steel 304
Gasket material
FKM
Bakeout temperature
100 °C
Purity class
PCS
$59.00
available
KF Mesh Centering Ring | 302040
Nominal diameter
40
Connection type
KF
Diameter
1.614 ″
Meshsize
0.039 ″
Wire diameter
0.012 ″
Centering ring material
Stainless steel 304
Gasket material
FKM
Purity class
PCS
Nominal diameter
40
Connection type
KF
Diameter
41 mm
Meshsize
1 mm
Wire diameter
0,3 mm
Centering ring material
Stainless steel 304
Gasket material
FKM
Purity class
PCS
$37.00
available
KF O-Rings | 404594
Connection type
KF
Nominal diameter
40
Diameter
1.654 ″
Gasket material
MVQ
Bakeout temperature
392 °F
Min. operating temperature
-67 °F
Purity class
PCS
Connection type
KF
Nominal diameter
40
Diameter
42 mm
Gasket material
MVQ
Bakeout temperature
200 °C
Min. operating temperature
-55 °C
Purity class
PCS
$10.00
available
KF Centering Rings, O-Ring | 302075
Nominal diameter
40
Connection type
KF
Diameter
1.614 ″
Centering ring material
Stainless steel 304L
Gasket material
FKM
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 304L
Gasket material
FKM
Bakeout temperature
150 °C
Min. operating temperature
-10 °C
Purity class
PCS
$11.00
available
KF Centering Rings, O-Ring | 336655
Nominal diameter
40
Connection type
KF
Diameter
1.614 ″
Centering ring material
Stainless steel 304L
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 304L
Gasket material
FKM
Bakeout temperature
150 °C
Min. operating temperature
-10 °C
Purity class
PC2
$21.16
on request
KF Centering Rings, O-Ring | 338857
Nominal diameter
40
Connection type
KF
Diameter
1.614 ″
Centering ring material
Stainless steel 304L
Gasket material
FKM
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 304L
Gasket material
FKM
Bakeout temperature
150 °C
Min. operating temperature
-10 °C
Purity class
PCS
$53.91
on request
KF Centering Rings, O-Ring | 302076
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
PCS
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
PCS
$9.40
on request
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
$73.00
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
$19.55
on request
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
$14.00
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
$19.30
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
$58.00
on request
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
$53.00
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
$3.00
available
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