The EM-Tec standard KF vacuum flange hardware components and parts are directly compatible with all KF, NW of 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. The standard sizes offered are:
- DN10KF (adapts to DN16KF)
- DN16KF
- DN25KF
- DN40KF
- DN50KF
Most components are offered in stainless steel. However, for adapters vacuum grade aluminium alloys are sometimes preferred. The standard KF vacuum flange hardware is extensively used to connect vacuum components and can be found on vacuum coating systems, electron microscopes, vacuum ovens, vacuum pumps, vacuum equipment, vacuum gauges etc.
Dimensions of DN-KF flanges
| Dimensions in 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 |
 | EM-Tec KF flange adapters with 1/8inch female NPT thread, aluminium |
|---|---|
| Product # | Unit |
| 61-010003-16 | DN16KF adapter to 1/8inch NPT female thread, aluminium |
| 61-010003-25 | DN25KF adapter to 1/8inch NPT female thread, aluminium |
| 61-010003-40 | DN40KF adapter to 1/8inch NPT female thread, aluminium |
| 61-010003-50 | DN50KF adapter to 1/8inch NPT female thread, aluminium |
 | EM-Tec KF vacuum flange adapters to 1/8inch NPT female thread, stainless steel |
|---|---|
| Product # | Unit |
| 61-110003-16 | DN16KF adapter to 1/8inch NPT female thread, 304 stainless steel |
| 61-110003-25 | DN25KF adapter to 1/8inch NPT female thread, 304 stainless steel |
| 61-110003-40 | DN40KF adapter to 1/8inch NPT female thread, 304 stainless steel |
| 61-110003-50 | DN50KF adapter to 1/8inch NPT female thread, 304 stainless steel |
| EM-Tec KF vacuum flange adapters to 1/4 inch NPT female thread, 304 stainless steel |
|---|---|
| Product # | Unit |
| 61-110006-16 | DN16KF adapter to 1/4 inch NPT female thread, 304 stainless steel |
| 61-110006-25 | DN25KF adapter to 1/4 inch NPT female thread, 304 stainless steel |
| EM-Tec KF vacuum flange adapters to 1/4inch NPT female thread, aluminium |
|---|---|
| Product # | Unit |
| 61-010006-16 | DN16KF adapter to 1/4inch NPT female thread, aluminium |
| 61-010006-25 | DN25KF adapter to 1/4inch NPT female thread, aluminium |
| 61-010006-40 | DN40KF adapter to 1/4inch NPT female thread, aluminium |
| 61-010006-50 | DN50KF adapter to 1/4 inch NPT female thread, aluminium |
 | EM-Tec KF vacuum flange DN10/16KF adaptive seal from KF10 to KF16 with 304 stainless steel centering ring with Viton O-ring |
|---|---|
| Product # | Unit |
| 61-110011-10 | DN10/16KF adaptive seal from KF10 to KF16 with 304 stainless steel centering ring with Viton O-ring |
 | EM-Tec KF vacuum flange seals with 304 stainless steel centering ring with Viton O-ring |
|---|---|
| Product # | Unit |
| 61-110010-16 | DN16KF seal with 304 stainless steel centering ring with Viton O-ring |
| 61-110010-25 | DN25KF seal with 304 stainless steel centering ring with Viton O-ring |
| 61-110010-40 | DN40KF seal with 304 stainless steel centering ring with Viton O-ring |
| 61-110010-50 | DN50KF seal with 304 stainless steel centering ring with Viton O-ring |
 | EM-Tec replacement O-rings for worn or damaged centering seals |
|---|---|
| Product # | Unit |
| 61-010011-16 | DN16KF replacement O-ring for KF16 centering ring, NBR |
| 61-010011-25 | DN25KF replacement O-ring for KF25 centering ring, NBR |
| 61-010011-40 | DN40KF replacement O-ring for KF40 centering ring, NBR |
| 61-010011-50 | DN50KF replacement O-ring for KF50 centering ring, NBR |
 | EM-Tec KF vacuum flange centering seals with aluminium centering ring with Viton O-ring |
|---|---|
| Product # | Unit |
| 61-010010-16 | DN16KF seal with aluminium centering ring with Viton O-ring |
| 61-010010-25 | DN25KF seal with aluminium centering ring with Viton O-ring |
 | EM-Tec KF vacuum flange quick release hinged wing nut clamp, aluminium |
|---|---|
| Product # | Unit |
| 61-010015-16 | DN16KF quick release hinged wing nut clamp, aluminium |
| 61-010015-25 | DN25KF quick release hinged wing nut clamp, aluminium |
| 61-010015-40 | DN40KF quick release hinged wing nut clamp, aluminium |
| 61-010015-50 | DN50KF quick release hinged wing nut clamp, aluminium |
 | EM-Tec blank flange, 304 stainless steel |
|---|---|
| Product # | Unit |
| 61-110012-16 | DN16KF blank flange, 304 stainless steel |
| 61-110012-25 | DN25KF blank flange, 304 stainless steel |
| 61-110012-40 | DN40KF blank flange, 304 stainless steel |
| 61-110012-50 | DN50KF blank flange, 304 stainless steel |
 | EM-Tec conical vacuum reducers from DN40KF to DN25KF or DN16KF and from DN25KF or DN16KF, 304 stainless steel, 40mm long |
|---|---|
| Product # | Unit |
| 61-110014-1625 | EM-Tec conical vacuum reducer from DN25KF to DN16KF, 304 stainless, 40mm long |
| 61-110014-1640 | EM-Tec conical vacuum reducer from DN40KF to DN16KF, 304 stainless, 40mm long |
| 61-110014-2540 | EM-Tec conical vacuum reducer from DN40KF to DN25KF, 304 stainless, 40mm long |
 | EM-Tec DN25KF vacuum flange hose adapters, 304 stainless steel |
|---|---|
| Product # | Unit |
| 61-110022-06 | DN25KF hose adapter for 6mm ID hose, 304 stainless steel |
| 61-110022-25 | DN25KF hose adapter for 25mm ID hose, L=35mm, 304 stainless steel |
 | EM-Tec DN16KF vacuum flange hose adapters, 304 stainless steel |
|---|---|
| Product # | Unit |
| 61-110020-16 | DN16KF hose adapter for 16mm ID hose, L=35mm, 304 stainless steel |
