KF Clamp for Edge Seal

The KF Clamp for Edge Seal is specifically designed for securing ISO-KF vacuum flange connections using metal edge seals instead of conventional elastomer O-ring seals.

The clamp provides the mechanical clamping force required to compress the metal gasket between two compatible KF flanges, creating a reliable metal-to-metal vacuum seal. This configuration is particularly suitable for vacuum applications where elastomer seals are undesirable due to gas permeation, outgassing, or temperature limitations.

Available in aluminium and stainless steel, the clamps provide a robust fastening solution for vacuum and high-vacuum systems using ISO-KF (QF / NW) metal sealing technology.

Technical Specifications

Flange Sizes: DN16, DN25, DN40, DN50 KF

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

Flange Connection: ISO-KF (QF / NW)

Seal Compatibility: KF Metal Edge Seals

Function: Mechanical fastening of metal-sealed KF flange connections

Applications

Suitable for vacuum chambers, pumping systems, research equipment, and industrial vacuum installations requiring KF flange connections with metal gaskets.

The clamp is particularly useful for applications requiring reduced gas permeation and outgassing compared with conventional elastomer-sealed KF connections.

Installation and Compatibility

Designed for use with compatible ISO-KF flanges and KF metal edge seals. The clamp provides the mechanical force required to compress the metal gasket and establish a vacuum-tight connection.

Unlike standard KF clamps intended for elastomer O-ring connections, this version is specifically designed for metal edge seals. Always select the appropriate clamp size to match the nominal flange diameter.

Compatible KF Edge Seals – Metal Vacuum Gaskets are available separately.