KF (QF) Centering Rings (Stainless Steel)

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.

KF Centering Rings Feature:

  • Rings available in stainless steel, brass, or aluminum
  • Stainless steel and aluminum centering rings available with either fluorocarbon or Buna-N o-rings
  • Brass centering rings available with Buna-N o-rings only
Flange Size Dim A Dim B O-Ring
Mat'l
Weight
kg
KF10 9.4 11.9 Fluorocarbon 0.11
KF16 16.1 17 Fluorocarbon 0.11
KF25 23.5 26 Fluorocarbon 0.11
KF40 38.4 40.9 Fluorocarbon 0.11
KF50 49.4 51.9 Fluorocarbon 0.11
KF10 9.4 11.9 Buna-N 0.11
KF16 16.1 17 Buna-N 0.11
KF25 23.8 26 Buna-N 0.11
KF40 38.4 40.9 Buna-N 0.11
KF50 49.4 51.9 Buna-N 0.11

 

DATA | /gallery_1/rozmery_kf_komponentu | KF_Centering_Ring.png