KF Clamp

KF Clamps provide a secure and convenient solution for connecting standard ISO-KF vacuum flanges. Their clamping mechanism allows two mating flanges to be joined quickly and reliably without the need for multiple fastening bolts.

Manufactured from aluminium or stainless steel, the clamps offer robust mechanical fastening for vacuum and high-vacuum applications. The clamp engages the conical outer surfaces of the KF flanges, applying the necessary compression to the centring ring and O-ring seal positioned between them.

The compact design allows convenient assembly and disassembly, making KF clamps particularly suitable for vacuum systems requiring frequent maintenance, component replacement, or reconfiguration.

Technical Specifications

Flange Sizes: DN16, DN25, DN40, DN50 KF

Materials: Aluminium (Al), Stainless Steel 1.4301 (AISI 304)

Flange Connection: ISO-KF (QF / NW)

Configuration: Mechanical clamping ring for two mating KF flanges

Function: Securing ISO-KF flange connections

Sealing: Compatible KF centring ring with elastomer O-ring seal

Applications

Suitable for vacuum chambers, vacuum pumps, pumping lines, vacuum manifolds, laboratory vacuum equipment, and industrial vacuum systems.

KF clamps are particularly useful for connecting vacuum fittings, valves, flexible hoses, and other components requiring quick and reliable flange connections.

Installation and Compatibility

Compatible with standard ISO-KF flange connections of the corresponding nominal size. Position a suitable centring ring with O-ring seal between the two mating flanges, place the clamp around the flange assembly, and tighten it to secure the connection.

Compatible KF Centring Rings & Seals are available separately.

For connections using metal gaskets instead of conventional elastomer seals, the KF Clamp for Edge Seal is also available.

For alternative fastening configurations, consider the KF Chain Clamp or KF Bulkhead Clamp.

The achievable vacuum pressure and operating temperature depend on the selected sealing components and operating conditions.