These centering rings are used for mating different size 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 | Material | Dim A | Dim B |
KF10-KF16 | Aluminum | 12,2 | 17,2 |
KF10-KF16 | Stainless Steel | 12,2 | 17,2 |
KF20-KF25 | Aluminum | 21,8 | 26,2 |
KF20-KF25 | Stainless Steel | 21,8 | 26,2 |
KF32-KF40 | Aluminum | 34,0 | 40,9 |
KF32-KF40 | Stainless Steel | 34,0 | 40,9 |