KF (QF) Centering Rings (Brass)

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 Weight
KF10 9.4 11.9 0.11
KF16 16.1 17 0.11
KF25 23.5 26 0.11
KF40 38.4 40.9 0.11
KF50 49.4 51.9 0.11


DATA | /gallery_1/rozmery_kf_komponentu | KF_Centering_Ring.png