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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 | 301627
Nominal diameter
10
Connection type
KF
Diameter
0.472 ″
Centering ring material
Stainless steel 304L
Gasket material
NBR
Bakeout temperature
212 °F
Min. operating temperature
14 °F
Purity class
PCS
Nominal diameter
10
Connection type
KF
Diameter
12 mm
Centering ring material
Stainless steel 304L
Gasket material
NBR
Bakeout temperature
100 °C
Min. operating temperature
-10 °C
Purity class
PCS
$10.00
available
KF Centering Rings, O-Ring | 301628
Nominal diameter
10
Connection type
KF
Diameter
0.472 ″
Centering ring material
Stainless steel 304L
Gasket material
FKM
Bakeout temperature
302 °F
Min. operating temperature
14 °F
Purity class
PCS
Nominal diameter
10
Connection type
KF
Diameter
12 mm
Centering ring material
Stainless steel 304L
Gasket material
FKM
Bakeout temperature
150 °C
Min. operating temperature
-10 °C
Purity class
PCS
$6.50
available
KF Centering Rings without O-Ring | 301715
Nominal diameter
16
Connection type
KF
Diameter
0.677 ″
Centering ring material
Stainless steel 304L
Purity class
PCS
Nominal diameter
16
Connection type
KF
Diameter
17,2 mm
Centering ring material
Stainless steel 304L
Purity class
PCS
$22.00
in production
KF Centering Rings, O-Ring | 301756
Nominal diameter
16
Connection type
KF
Diameter
0.669 ″
Centering ring material
Stainless steel 304L
Gasket material
NBR
Bakeout temperature
212 °F
Min. operating temperature
14 °F
Purity class
PCS
Nominal diameter
16
Connection type
KF
Diameter
17 mm
Centering ring material
Stainless steel 304L
Gasket material
NBR
Bakeout temperature
100 °C
Min. operating temperature
-10 °C
Purity class
PCS
$7.00
available
KF Centering Rings, O-Ring | 301757
Nominal diameter
16
Connection type
KF
Diameter
0.669 ″
Centering ring material
Stainless steel 304L
Gasket material
FKM
Bakeout temperature
302 °F
Min. operating temperature
14 °F
Purity class
PCS
Nominal diameter
16
Connection type
KF
Diameter
17 mm
Centering ring material
Stainless steel 304L
Gasket material
FKM
Bakeout temperature
150 °C
Min. operating temperature
-10 °C
Purity class
PCS
$7.50
available
KF Centering Rings, O-Ring | 338798
Nominal diameter
16
Connection type
KF
Diameter
0.669 ″
Centering ring material
Stainless steel 304L
Gasket material
FKM
Bakeout temperature
302 °F
Min. operating temperature
14 °F
Purity class
PCS
Nominal diameter
16
Connection type
KF
Diameter
17 mm
Centering ring material
Stainless steel 304L
Gasket material
FKM
Bakeout temperature
150 °C
Min. operating temperature
-10 °C
Purity class
PCS
$35.03  / SET
in production
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
$4.50
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
$8.00
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
$9.50
available
KF Centering Rings without O-Ring | 302017
Nominal diameter
40
Connection type
KF
Diameter
1.622 ″
Centering ring material
Stainless steel 304L
Purity class
PCS
Nominal diameter
40
Connection type
KF
Diameter
41,2 mm
Centering ring material
Stainless steel 304L
Purity class
PCS
$8.00
available
KF Centering Rings, O-Ring | 302073
Nominal diameter
40
Connection type
KF
Diameter
1.614 ″
Centering ring material
Stainless steel 304L
Gasket material
NBR
Bakeout temperature
212 °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
NBR
Bakeout temperature
100 °C
Min. operating temperature
-10 °C
Purity class
PCS
$11.00
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 | 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 without O-Ring | 302117
Nominal diameter
50
Connection type
KF
Diameter
2.055 ″
Centering ring material
Stainless steel 304L
Purity class
PCS
Nominal diameter
50
Connection type
KF
Diameter
52,2 mm
Centering ring material
Stainless steel 304L
Purity class
PCS
$6.50
in production
KF Centering Rings, O-Ring | 302158
Nominal diameter
50
Connection type
KF
Diameter
2.047 ″
Centering ring material
Stainless steel 304L
Gasket material
NBR
Bakeout temperature
212 °F
Min. operating temperature
14 °F
Purity class
PCS
Nominal diameter
50
Connection type
KF
Diameter
52 mm
Centering ring material
Stainless steel 304L
Gasket material
NBR
Bakeout temperature
100 °C
Min. operating temperature
-10 °C
Purity class
PCS
$10.67
in production
KF Centering Rings, O-Ring | 302159
Nominal diameter
50
Connection type
KF
Diameter
2.047 ″
Centering ring material
Stainless steel 304L
Gasket material
FKM
Bakeout temperature
302 °F
Min. operating temperature
14 °F
Purity class
PCS
Nominal diameter
50
Connection type
KF
Diameter
52 mm
Centering ring material
Stainless steel 304L
Gasket material
FKM
Bakeout temperature
150 °C
Min. operating temperature
-10 °C
Purity class
PCS
$18.00
available
KF Centering Rings, O-Ring | 338858
Nominal diameter
50
Connection type
KF
Diameter
2.047 ″
Centering ring material
Stainless steel 304L
Gasket material
FKM
Bakeout temperature
302 °F
Min. operating temperature
14 °F
Purity class
PC4
Nominal diameter
50
Connection type
KF
Diameter
52 mm
Centering ring material
Stainless steel 304L
Gasket material
FKM
Bakeout temperature
150 °C
Min. operating temperature
-10 °C
Purity class
PC4
$86.34
on request
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