KF (QF) Chain Clamps

These chain clamps are excellent quick fasteners used (in conjunction with a centering ring with fitted o-ring) for mating KF flanges. The KF (QF) flange is used for through- or foreline vacuum plumbing and for simple HV chamber ports.

KF Chain Clamps Feature:

  • Links constructed of pressure die-cast aluminum alloy
  • Pins constructed of stainless steel
  • Quick opening and closing of clamp
  • Clamp design allows for high-sealing forces
  • Safety turnbuckle cannot be "tripped" accidentally
Flange Size Material Dim A Dim B Dim C Dim D Clamp OD
KF10/KF16 Aluminum alloy 30 3 28 30.5 53
KF25 Aluminum alloy 40 4 23.4 35.6 63
KF40 Aluminum alloy 55 5 32.7 35.6 79
KF50 Aluminum alloy 75 7 23.4 35.6 97