High Vacuum - KF / ISO-K Clamp

The KF (Klein Flansch - small flange) and ISO-K (derived from KF) clamp system is a widely used method for creating vacuum connections in high vacuum applications, typically reaching pressures in the 10^-7 to 10^-8 Torr range.

Advantages of KF/ISO-K for High Vacuum:

  • Ease of Use: The KF/ISO-K system is known for its quick assembly and disassembly without requiring complex tools, making it ideal for frequent connections and disconnections.
  • Cost-Effective: With their simpler design, KF/ISO-K components are generally less expensive.
  • Relatively Leak-Tight: With proper assembly and good quality O-rings, the KF/ISO-K system can achieve the high vacuum levels needed for many applications.

Items

Variations

Sizes (Pipe Diameter)

KF 25 (1"), KF 40 (1-1/2"), KF 50 (2")

Bored flange, Blind flange

SS304 / SS316

Centering Ring with O-ring

SS304 / SS316, outer ring (positive pressure)

Wingnut Clamp

Aluminum / SS304

Viton O-ring

-20 - 200°C Operating Temperature

Fittings - Elbow, Tee, Reducer, Pipe

Buttweld to Flange, c/w Flange

Items

Variations

Sizes (Pipe Diameter)

ISO 63 (2-1/2"), ISO 80 (3"), ISO 100 (4") , ISO 160, 200

Bored flange, Blind flange

SS304 / SS316

Centering Ring with O-ring and Outer ring

SS304 / SS316, outer ring (Aluminum)

Double Claw Clamp

Aluminum body, M8 SS304 screw

Viton O-ring

-20 - 200°C Operating Temperature

Fittings - Elbow, Tee, Reducer, Pipe

Buttweld to Flange, c/w Flange