KF Flanges (Klien) are the standard din 28430 & ISO 2861 connections for vacuum fittings up to DN50 used in low & high vacuum. Along with the ancillary components they offer a simple solution for applications requiring easy and repeated assembly.Sealing is accomplished with a centering with a nitrile or viton o’ring squashed between a pair of KF Flanges and pulled together using a circumferental clamp.KF Bored Flanges points:Material: 304L stainless steelBakeable to 150° CVacuum Rating: 1×10-8 mbarWide range of elbows, crosses & tees are availableTubulated Flanges are available for welding to stainless steel tubeKF Bored flanges are used for welding onto tube to produce ports and connectors when manufacturing fabrications.Manufactured from: 304 Stainless Steel. KF Bored flanges are supplied in a sealed plastic bag with a protective plastic cap.KF Bored flanges are manufactured to the ISO Standard and are compatible with other supplier’s product.

KF Flanges (Klien) are the standard din 28430 & ISO 2861 connections for vacuum fittings up to DN50 used in low & high vacuum. Along with the ancillary components they offer a simple solution for applications requiring easy and repeated assembly.Sealing is accomplished with a centering with a nitrile or viton o’ring squashed between a pair of KF Flanges and pulled together using a circumferental clamp.KF Blank Flanges points:Material: 304L stainless steelBakeable to 150° CVacuum Rating: 1×10-8 mbarWide range of elbows, crosses & tees are availableTubulated Flanges are available for welding to stainless steel tubeKF Blank flanges are used to cap off the open ports where not required and are also used as a base part to manufacture adaptor fittings, instruments, feedthroughs etc.Manufactured from: 304 Stainless Steel. KF Blank flanges are supplied in a sealed plastic bag with a protective plastic cap.KF Blank flanges are manufactured to the ISO Standard and are compatible with other supplier’s product.

KF Clamps Aluminium are used to clamp two flanges to a Centering ring and an O Ring creating a vacuum seal.

KF Clamps Aluminium are manufactured from aluminium and are supplied in a sealed plastic bag.

KF Clamps Aluminium are manufactured to the ISO standard and are compatible with other supplier’s products.

KF Tubulated Reducing Adaptors are used to change the size of a tube or flange from one size to another. This enables mismatched components to be fitted together.Manufactured from: 304 Stainless Steel. Helium Leak tested to 10-8 mbar. KF Tubulated Reducing Adaptors are supplied in a sealed plastic bag with protective plastic caps.KF Tubulated Reducing Adaptors are manufactured to the ISO Standard. They are compatible with other suppliers’ products.

KF Tubulated Reducing Adaptors are used to change the size of a tube or flange from one size to another. This enables mismatched components to be fitted together.Manufactured from: 304 Stainless Steel. Helium Leak tested to 10-8 mbar. KF Tubulated Reducing Adaptors are supplied in a sealed plastic bag with protective plastic caps.KF Tubulated Reducing Adaptors are manufactured to the ISO Standard. They are compatible with other suppliers’ products.

KF Tubulated Reducing Adaptors are used to change the size of a tube or flange from one size to another. This enables mismatched components to be fitted together.Manufactured from: 304 Stainless Steel. Helium Leak tested to 10-8 mbar. KF Tubulated Reducing Adaptors are supplied in a sealed plastic bag with protective plastic caps.KF Tubulated Reducing Adaptors are manufactured to the ISO Standard. They are compatible with other suppliers’ products.

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

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.

Demountable viewport on a KF40 flange with UV grade fused silica optic

Demountable viewport for high vacuum systems allowing users to change optics without having to replace the complete viewport, which saves money, and is very useful if optic damage is likely, for example, in laser applications

Constructed from stainless steel 304L (1.4307) with an aluminium alloy retainer
Can be installed on standard KF vacuum ports, no special adaptors or fittings needed
UHV cleaned and helium leak tested
Typical lead time 4-6 weeks
Optic materials available: borosilicate glass, sapphire, zinc selenide (ZnSe), magnesium fluoride (MgF2), barium fluoride (BaF2) and calcium fluoride (CaF2). Other materials may be supplied on request.

Different sizes available on request.

Demountable viewport on a KF40 flange with borosilicate glass (Kodial) optic

Demountable viewport for high vacuum systems allowing users to change optics without having to replace the complete viewport, which saves money, and is very useful if optic damage is likely, for example, in laser applications

Constructed from stainless steel 304L (1.4307) with an aluminium alloy retainer
Can be installed on standard KF vacuum ports, no special adaptors or fittings needed
UHV cleaned and helium leak tested
Typical lead time 4-6 weeks
Optic materials available: borosilicate glass, sapphire, zinc selenide (ZnSe), magnesium fluoride (MgF2), barium fluoride (BaF2) and calcium fluoride (CaF2). Other materials may be supplied on request.

Different sizes available on request.

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.

KF Flanges (Klien) are the standard din 28430 & ISO 2861 connections for vacuum fittings up to DN50 used in low & high vacuum. Along with the ancillary components they offer a simple solution for applications requiring easy and repeated assembly.Sealing is accomplished with a centering with a nitrile or viton o’ring squashed between a pair of KF Flanges and pulled together using a circumferental clamp.KF Bored Flanges points:Material: 304L stainless steelBakeable to 150° CVacuum Rating: 1×10-8 mbarWide range of elbows, crosses & tees are availableTubulated Flanges are available for welding to stainless steel tubeKF Bored flanges are used for welding onto tube to produce ports and connectors when manufacturing fabrications.Manufactured from: 304 Stainless Steel. KF Bored flanges are supplied in a sealed plastic bag with a protective plastic cap.KF Bored flanges are manufactured to the ISO Standard and are compatible with other supplier’s product.

KF Flanges (Klien) are the standard din 28430 & ISO 2861 connections for vacuum fittings up to DN50 used in low & high vacuum. Along with the ancillary components they offer a simple solution for applications requiring easy and repeated assembly.Sealing is accomplished with a centering with a nitrile or viton o’ring squashed between a pair of KF Flanges and pulled together using a circumferental clamp.KF Blank Flanges points:Material: 304L stainless steelBakeable to 150° CVacuum Rating: 1×10-8 mbarWide range of elbows, crosses & tees are availableTubulated Flanges are available for welding to stainless steel tubeKF Blank flanges are used to cap off the open ports where not required and are also used as a base part to manufacture adaptor fittings, instruments, feedthroughs etc.Manufactured from: 304 Stainless Steel. KF Blank flanges are supplied in a sealed plastic bag with a protective plastic cap.KF Blank flanges are manufactured to the ISO Standard and are compatible with other supplier’s product.

KF Clamps Aluminium are used to clamp two flanges to a Centering ring and an O Ring creating a vacuum seal.

KF Clamps Aluminium are manufactured from aluminium and are supplied in a sealed plastic bag.

KF Clamps Aluminium are manufactured to the ISO standard and are compatible with other supplier’s products.

KF Tubulated Reducing Adaptors are used to change the size of a tube or flange from one size to another. This enables mismatched components to be fitted together.Manufactured from: 304 Stainless Steel. Helium Leak tested to 10-8 mbar. KF Tubulated Reducing Adaptors are supplied in a sealed plastic bag with protective plastic caps.KF Tubulated Reducing Adaptors are manufactured to the ISO Standard. They are compatible with other suppliers’ products.

KF Tubulated Reducing Adaptors are used to change the size of a tube or flange from one size to another. This enables mismatched components to be fitted together.Manufactured from: 304 Stainless Steel. Helium Leak tested to 10-8 mbar. KF Tubulated Reducing Adaptors are supplied in a sealed plastic bag with protective plastic caps.KF Tubulated Reducing Adaptors are manufactured to the ISO Standard. They are compatible with other suppliers’ products.

KF Tubulated Reducing Adaptors are used to change the size of a tube or flange from one size to another. This enables mismatched components to be fitted together.Manufactured from: 304 Stainless Steel. Helium Leak tested to 10-8 mbar. KF Tubulated Reducing Adaptors are supplied in a sealed plastic bag with protective plastic caps.KF Tubulated Reducing Adaptors are manufactured to the ISO Standard. They are compatible with other suppliers’ products.

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

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.

KF50 Trapped Centering Ring with Viton O-Ring

KF Trapped Centering Rings with Viton O-rings are used to connect two flanges together and create a vacuum seal with the use of a clamp they also provide for cases of slight over pressure. Manufactured from 304 stainless steel, Aluminium and Viton. KF Trapped Centering Rings are supplied in a sealed plastic bag. KF Trapped Centering Rings are manufactured to the ISO standard and are compatible with other supplier’s products.