KF (NW) Bolt Clamps (Aluminum)

These bolt clamps are used (in conjunction with metal seal discs) for mating KF flanges in UHV applications. The KF (QF) flange is typically used for through- or foreline vacuum plumbing and for simple HV chamber ports; however UHV pressures can be attained when using the necessary devices listed on this page.

KF Bolt Clamps Feature:

  • Three-part device closed with socket head screws
  • Aluminum construction
  • Used with metal seal discs ("gaskets") for UHV pressures
  • Requires aluminum seal discs and outer support rings (sold separately, below)
Flange Size Material Weight
KF16 Aluminum 0.45
KF25 Aluminum 0.45
KF40 Aluminum 0.68