KF Fittings


The KF ranges of flanges and fittings are manufactured from high quality stainless steel. KF flanges utilize an aluminium clamp with a single wingnut fastener allowing frequent disassembly without tools.

The vacuum seal is effected by uniform applications of pressure by the clamp on the 15° surface of the flange. The mating flange surfaces compress an ‘O’-ring (held in place by a metal ring) to produce a seal that can used in vacuum applications down to 10-8 mbar and baked to 200°C (sustained to 150°C)

Advanced sealing material such as aluminium or copper may be used, when the joints have to be operated or baked at elevated temperatures or if high corrosion resistance and/or electrical insulation are required.

Our vacuum components are bead-blasted inside and outside, unless otherwise stated. The sealing faces are polished mechanically.

All components are subjected to a leak testing protocol.

KF50 Aluminium Centering Ring with Viton O-Ring
SKU: KF50AVCR
KF Aluminium Centering Rings with Viton O-rings are used to connect two flanges together and create a vacuum seal with the use of a clamp. Manufactured from Aluminium and Viton. KF Aluminium Centering Rings are supplied in a sealed plastic bag. KF Aluminium Centering Rings are manufactured to the ISO Standard and are compatible with other supplier’s product. ...more
KF50 Stainless Steel Centering Ring with Viton O-Ring
SKU: KF50SVCR
KF Stainless Steel Centering Rings with Viton O-rings are used to connect two flanges together and create a vacuum seal with the use of a clamp. Manufactured from 304 stainless steel and Viton. KF Stainless Steel Centering Rings are supplied in a sealed plastic bag. KF Stainless Steel Centering Rings are manufactured to the ISO standard and are compatible with other supplier’s products. ...more
KF50 Stainless Steel Meshed Centering Ring with Viton O-Ring
SKU: KF50SVCRM
KF Stainless Steel Reducing Centering Rings are used to connect two flanges of different internal sizes. This creates a vacuum seal with the use of a clamp. Manufactured from 304 Stainless Steel and Viton. KF Stainless Steel Reducing Centering Rings are supplied in a sealed plastic bag. KF Stainless Steel Reducing Centering Rings are manufactured to the ISO standard and are compatible with other supplier’s products. ...more