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O-Rings (Buna-N)
Activair.cz > Products > Vacuum componets > KF (NW) Flanges & Components > O-Rings & Centering Rings > O-Rings (Buna-N)
These replacement elastomeric o-rings are used (in conjunction with a centering ring - not included) for sealing KF flanges. The KF (QF) flange is used for through or foreline vacuum plumbing and for simple HV chamber ports.
O-Rings Feature:
- O-Rings available in fluorocarbon, Buna-N (nitrile rubber), and silicone materials
- The more popular o-ring sizes for vacuum use are listed below
| Flange Size | Material | O-Ring ID | O-Ring Cross Section |
Weight kg |
| KF10 | Buna-N | 15.2 | 5.3 | 0.25 |
| KF16 | Buna-N | 18.3 | 5.3 | 0.25 |
| KF25 | Buna-N | 27.9 | 5.3 | 0.25 |
| KF40 | Buna-N | 40.6 | 5.3 | 0.25 |
| KF50 | Buna-N | 53.3 | 5.3 | 0.25 |
