Special offer - Delivery now £4.99 when ordered onlineEM-Tec KF - NW - QF vacuum connection hardware, components and parts
EM-Tec standard KF vacuum flange hardware components and parts are directly compatible with all KF, NW or QF vacuum flange hardware connections. Interchangeable designations for these standard rough and medium vacuum flange connections are: KF, DN-KF, ISO-KF, NW, ISO-NW, QF and DN. Standard sizes offered are:
- DN10KF (adapts to DN16KF)
- DN16KF
- DN25KF
- DN40KF
- DN50KF
Most components are offered in stainless steel, however, for adaptors vacuum grade aluminium alloys are sometimes preferred. Standard KF vacuum flanges are extensively used to connect vacuum components on a range of vacuum systems, including coating systems, electron microscopes, vacuum ovens, vacuum pumps, vacuum gauges etc.
Click here for dimensions of DN-KF flanges
 |
Dimensions (mm) |
DN10KF |
DN16KF |
DN25KF |
DN40KF |
DN50KF |
|
Flange OD ØA |
30 |
30 |
40 |
55 |
75 |
|
|
Centering seal ØB |
12.2 |
17.2 |
26.2 |
41.2 |
52.4 |
|
|
Vacuum line ID ØC |
10 |
16 |
24 |
40.5 |
51 |
|
|
Vacuum line OD ØD |
14 |
20 |
28 |
44.5 |
57 |
We offer:
- EM-Tec KF flange adaptors with 1/8” female NPT thread. Made from vacuum grade aluminium for connecting components such as vacuum gauges, small valves and NPT connectors with 1/8” male NPT thread
- EM-Tec KF flange adaptors with 1/8” female NPT thread. Made from vacuum grade AISI 304 stainless steel
- EM-Tec KF flange adaptors with 1/4” female NPT thread and with 1/4” male NPT thread
- EM-Tec KF vacuum flange centering seals. Consisting of a stainless steel centering ring and a Viton O-ring. They are placed between the KF flanges and seal when the flanges are pushed together by wing nut clamps
- EM-Tec KF vacuum flange centering seals with centering ring and Viton O-ring. Available with stainless steel 304 centering ring and aluminim centering ring
- EM-Tec replacement O-rings for worn or damaged centering seals. O-rings are made from NBR (Nitrile) and are slightly softer than the Viton seals to provide a secure seal in vacuum lines. Sold in packages of 10
- EM-Tec quick-release hinged clamps which are placed around the KF vacuum flanges. By turning the wing nut, the hinged clamp closes and seals the O-ring on the KF vacuum flanges. Made from aluminium with stainless steel pins, bolt and wing nut
Ordering information
Qty |
£19.62 |
 DN16KF adaptor to 1/8" NPT female thread, aluminium |
Qty |
£21.34 |
 DN25KF adaptor to 1/8" NPT female thread, aluminium |
Qty |
£23.05 |
 DN40KF adaptor to 1/8" NPT female thread, aluminium |
Qty |
£27.96 |
 DN50KF adaptor to 1/8" NPT female thread, aluminium |
Qty |
£26.24 |
 DN16KF adaptor to 1/8inch NPT female thread, 304 stainless steel |
Qty |
£27.96 |
 DN25KF adaptor to 1/8" NPT female thread, 304 stainless steel |
Qty |
£34.33 |
 DN40KF adaptor to 1/8" NPT female thread, 304 stainless steel |
Qty |
£44.14 |
 DN50KF adaptor to 1/8" NPT female thread, 304 stainless steel |
Qty |
£9.81 |
 DN10/16KF adaptive seal from KF10 to KF16 with 304 stainless steel centering ring with Viton O-ring |
Qty |
£8.29 |
 DN16KF seal with 304 stainless steel centering ring with Viton O-ring |
Qty |
£5.98 |
 DN40KF replacement O-ring for KF40 centering ring, NBR |
Qty |
£6.90 |
 DN50KF replacement O-ring for KF50 centering ring, NBR |
Qty |
£7.85 |
 DN16KF quick release hinged wing nut clamp, aluminium |
Qty |
£7.85 |
|
DN25KF quick release hinged wing nut clamp, aluminium |
Qty |
£7.85 |
|
DN40KF quick release hinged wing nut clamp, aluminium |
Qty |
£8.83 |
|
DN50KF quick release hinged wing nut clamp, aluminium |
Qty |
£5.15 |
 DN16KF blank flange, 304 stainless steel |
Qty |
£6.62 |
 DN40KF blank flange, 304 stainless steel |
Qty |
£10.25 |
|
DN50KF blank flange, 304 stainless steel |
Qty |
£12.26 |
 DN16KF hose adapter for 16mm ID hose, L=35mm, 304 stainless steel (each) |
Qty |
£8.73 |
 DN25KF hose adapter for 6mm ID hose, 304 stainless steel (each) |
Qty |
£14.47 |
 DN25KF hose adapter for 25mm ID hose, L=35mm, 304 stainless steel (each) |