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ISO Fittings

ISO Fittings


The ISO ranges of flanges and fittings are manufactured from high quality stainless steel.

There are various types of ISO flanges:

  1. ISO-K (clamp) flanges with a grooved ring for inserting wall clamps and double claw clamps are smaller and less expensive.
  2. ISO-F (fixed) flanges with a set of through-bore holes are pressed together with standard bolts. They are more stable than ISO-K flanges which enable them to mechanically support parts of the vacuum chamber.
  3. ISO bolt rings are used to make an ISO-K flange and ISO-F flange.
  • Material: 304L Stainless steel
  • Bakeable to 200’C (150’C continuous)
  • Vacuum rating 1×10-8mbar
  • Wide ranges of Elbows, Crosses & Tees are available
  • Bored Flanges Are Available For Welding To Stainless Steel Tube
ISO100 Stainless Steel Centering Ring with Nitrile O-Ring
SKU: ISO100SNCR
ISO Stainless Steel Centering Rings with Nitrile O Rings are used to connect two flanges together and create a vacuum seal with the use of a clamp.Manufactured from: Stainless Steel and Nitrile. ISO Stainless Steel Centering Rings with Nitrile O Rings are supplied in sealed plastic bags.ISO Stainless Steel Centering Rings with Nitrile O Rings are manufactured to the ISO Standard and are compatible with other supplier’s product.
£ 12.45 12.450000000000001 GBP
ISO100 Stainless Steel Trapped Centering Ring - Aluminium Outer
SKU: ISO100SNCRT
ISO Stainless Steel Trapped Centering Rings with Nitrile O Rings are used to connect two flanges together and create a vacuum seal with the use of a clamp.Manufactured from: Stainless Steel and Nitrile. ISO Stainless Steel Trapped Centering Rings with Nitrile O Rings are supplied in sealed plastic bags.ISO Stainless Steel Trapped Centering Rings with Nitrile O Rings are manufactured to the ISO Standard and are compatible with other supplier’s product.
ISO100 Stainless Steel Centering Rings with Viton O-Rings
SKU: ISO100SVCR
ISO 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: Stainless Steel and Viton. ISO Stainless Steel Centering Rings with Viton O Rings are supplied in sealed plastic bags.ISO Stainless Steel Centering Rings with Viton O Rings are manufactured to the ISO Standard and are compatible with other supplier’s product.
£ 9.03 9.03 GBP
ISO100 Stainless Steel Trapped Centering Ring with Viton O-Ring - Aluminium Outer
SKU: ISO100SVCRT
ISO Stainless Steel Trapped Centering Rings with Viton O Rings and Aluminium outers are used to connect two flanges together and create a vacuum seal with the use of a clamp.

Manufactured from: Stainless Steel, Viton & Aluminium. ISO Stainless Steel Trapped Centering Rings with Viton O Rings are supplied in sealed plastic bags.

ISO Stainless Steel Trapped Centering Rings with Viton O Rings are manufactured to the ISO Standard and are compatible with other supplier’s product.
£ 11.36 11.36 GBP
ISO100 Tee
SKU: ISO100TE
ISO Tees are used to bring in a branch line of the same size into a main line.

Manufactured from: 304 stainless steel. Helium Leak tested to 10-8 mbar. ISO Tees are supplied in a sealed plastic bag with protective plastic caps.

ISO Tees are manufactured to the ISO Standard and are compatible with other supplier’s product.
ISO100 to KF25 Reducing Tee
SKU: ISO100TE25
ISO to KF Reducing Tees are used to bring in a branch line of a different size into a main line.Manufactured from: 304 stainless steel. Helium Leak tested to 10-8 mbar. ISO to KF Reducing Tees are supplied in a sealed plastic bag with protective plastic caps.ISO to KF Reducing Tees are manufactured to the ISO Standard and are compatible with other supplier’s product.
ISO100 to KF40 Reducing Tee
SKU: ISO100TE40
ISO to KF Reducing Tees are used to bring in a branch line of a different size into a main line.Manufactured from: 304 stainless steel. Helium Leak tested to 10-8 mbar. ISO to KF Reducing Tees are supplied in a sealed plastic bag with protective plastic caps.ISO to KF Reducing Tees are manufactured to the ISO Standard and are compatible with other supplier’s product.
ISO100 to KF50 Reducing Tee
SKU: ISO100TE50
ISO to KF Reducing Tees are used to bring in a branch line of a different size into a main line.Manufactured from: 304 stainless steel. Helium Leak tested to 10-8 mbar. ISO to KF Reducing Tees are supplied in a sealed plastic bag with protective plastic caps.ISO to KF Reducing Tees are manufactured to the ISO Standard and are compatible with other supplier’s product.
ISO100 Claw Clamp Tubulation Fixed
SKU: ISO100TU
ISO Claw Clamp Tubulations are used to weld into other fabricated parts to produce ports for instruments and feedthrough attachments.Manufactured from: 304 Stainless Steel. ISO Claw Clamp Tubulations are supplied in a plastic bag with a protective plastic cap.ISO Claw Clamp Tubulations are manufactured to the ISO Standard and are compatible with other supplier’s product.
£ 81.00 81.0 GBP
Demountable viewport on a ISO100 flange with UV grade fused silica optic
SKU: ISO100VPDF

Demountable viewport on a ISO100 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 ISO 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.
£ 898.00 898.0 GBP
Demountable viewport on a ISO100 flange with borosilicate glass (Kodial) optic
SKU: ISO100VPDK

Demountable viewport on a ISO100 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 ISO 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.
£ 758.00 758.0 GBP
ISO100 4 Way Cross
SKU: ISO100X
ISO 4 Way Crosses are used to bring in two branch lines of the same size into a main line.Manufactured from: 304 stainless steel. Helium Leak tested to 10-8 mbar. ISO 4 Way Cross are supplied in a sealed plastic bag with protective plastic caps.ISO 4 Way Cross are manufactured to the ISO Standard and are compatible with other supplier’s product.
ISO100 to KF25 Reducing Cross
SKU: ISO100X25
ISO to KF Reducing Crosses are used to join two different Branch lines of  various sizes into a single main line.Manufactured from: 304 stainless steel. Helium Leak tested to 10-8 mbar. ISO to KF Reducing Crosses are supplied in a sealed plastic bag and protected with plastic caps.ISO to KF Reducing Crossesare compatible with other supplier’s products and are manufactured to the ISO Standard.
ISO100 to KF40 Reducing Cross
SKU: ISO100X40
ISO to KF Reducing Crosses are used to join two different Branch lines of  various sizes into a single main line.Manufactured from: 304 stainless steel. Helium Leak tested to 10-8 mbar. ISO to KF Reducing Crosses are supplied in a sealed plastic bag and protected with plastic caps.ISO to KF Reducing Crossesare compatible with other supplier’s products and are manufactured to the ISO Standard.
ISO100 to KF50 Reducing Cross
SKU: ISO100X50
ISO to KF Reducing Crosses are used to join two different Branch lines of  various sizes into a single main line.Manufactured from: 304 stainless steel. Helium Leak tested to 10-8 mbar. ISO to KF Reducing Crosses are supplied in a sealed plastic bag and protected with plastic caps.ISO to KF Reducing Crossesare compatible with other supplier’s products and are manufactured to the ISO Standard.
ISO100 to ISO63 Reducing 4 Way Cross
SKU: ISO100X63
ISO Reducing 4 way Crosses are used to bring two Branch lines of a different size into a main line.Manufactured from: 304 stainless steel. Helium Leak tested to 10-8 mbar. ISO Reducing 4 way crosses are supplied in a sealed plastic bag with protective plastic caps.ISO Reducing 4 way crosses are manufactured to the ISO Standard and are compatible with other supplier’s product.
ISO100 to ISO80 Reducing 4 Way Cross
SKU: ISO100X80
ISO Reducing 4 way Crosses are used to bring two Branch lines of a different size into a main line.Manufactured from: 304 stainless steel. Helium Leak tested to 10-8 mbar. ISO Reducing 4 way crosses are supplied in a sealed plastic bag with protective plastic caps.ISO Reducing 4 way crosses are manufactured to the ISO Standard and are compatible with other supplier’s product.
ISO100 6 Way Cross
SKU: ISO100XX
ISO 6 Way Crosses are used to bring in four branch lines of the same size into a main line.Manufactured from: 304 stainless steel. Helium Leak tested to 10-8 mbar. ISO 6 Way Crosses are supplied in a sealed plastic bag with protective plastic caps.ISO 6 Way Crosses are manufactured to the ISO Standard and are compatible with other supplier’s product.
ISO160/250 Double Claw Clamps Aluminium
SKU: ISO160/250DCA
ISO Double Claw Clamps Aluminium are used to clamp two flanges to a Centering ring and O Ring creating a vacuum seal

Manufactured from: Aluminium. ISO Double Claw Clamps Aluminium are supplied in sealed plastic bags.

ISO Double Claw Clamps Aluminium are manufactured to the ISO standard and are compatible with other supplier’s products
£ 2.74 2.74 GBP
ISO160/250 Wall Clamps Aluminium
SKU: ISO160/250WCA
ISO Wall Clamps Aluminium are used to Clamp two flanges to a Centering ring and O Ring creating a vacuum seal

Manufactured from: Aluminium. ISO Wall Clamps Aluminium are supplied in sealed plastic bags.

ISO Wall Clamps Aluminium are manufactured to the ISO standard and are compatible with other supplier’s products
£ 2.43 2.43 GBP