These centering rings are used for mating KF flanges and include both the centering ring and o-ring. The KF (QF) flange is used for through- or foreline vacuum plumbing and for simple HV chamber ports.
Flange Size | Dim A | Dim B | O-Ring Mat'l |
Weight kg |
KF10 | 9.4 | 17 | Buna-N | 0.11 |
KF16 | 16.1 | 17 | Buna-N | 0.11 |
KF25 | 23.5 | 26 | Buna-N | 0.11 |
KF40 | 38.4 | 40.9 | Buna-N | 0.11 |
KF50 | 49.4 | 51.9 | Buna-N | 0.11 |
KF10 | 9.4 | 11.9 | Viton | 0.11 |
KF16 | 16.1 | 17 | Viton | 0.11 |
KF25 | 23.5 | 26 | Viton | 0.11 |
KF40 | 38.4 | 40.9 | Viton | 0.11 |
KF50 | 49.4 | 51.9 | Viton | 0.11 |