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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
ISO400 Aluminium Centering Ring With Nitrile O-Ring
SKU: ISO400ANCR
ISO Aluminium 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: Aluminium and Nitrile. ISO Aluminium Centering Rings with Nitrile O rings are supplied in sealed plastic bags.ISO Aluminium Centering Rings with Nitrile O Rings are manufactured to the ISO Standard and are compatible with other supplier’s product.
£ 245.00 245.0 GBP
ISO400 Aluminium Trapped Centering Ring with Nitrile O-Ring
SKU: ISO400ANCRT
ISO Aluminium Trapped Centering Rings with Nitrile O Rings & Outer Traps are used to connect two flanges together and create a vacuum seal with the use of a clamp.Manufactured from: Aluminium and Nitrile. ISO Aluminium Trapped Centering Rings with Nitrile O Rings are supplied in sealed plastic bags.ISO Aluminium Trapped Centering Rings with Nitrile O Rings are manufactured to the ISO Standard and are compatible with other supplier’s product.
ISO400 Aluminium Centering Rings with Viton O-Rings
SKU: ISO400AVCR
ISO 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. ISO Aluminium Centering Rings with Viton O Rings are supplied in sealed plastic bags.ISO Aluminium Centering Rings with Viton O Rings are manufactured to the ISO Standard and are compatible with other supplier’s product.
ISO400 Aluminium Trapped Centering Ring with Viton O Rings
SKU: ISO400AVCRT
ISO Trapped Centering Rings with Viton O Rings and Outer Traps are used to connect two flanges together and create a vacuum seal with the use of a clamp.Manufactured from: Aluminium and Viton. ISO Aluminium Trapped Centering Rings with Viton O Rings are supplied in sealed plastic bags.ISO Aluminium Trapped Centering Rings with Viton O Rings are manufactured to the ISO Standard and are compatible with other supplier’s product.
ISO400 Bored 406mm Claw Clamp Flange
SKU: ISO400B406
ISO Claw Clamp Bored Flanges are used for welding onto tube to produce ports and connectors when manufacturing fabrications.Manufactured from: 304 Stainless Steel. ISO Claw Clamp Bored Flanges are supplied in a plastic bag with a protective plastic cap.ISO Claw Clamp Bored Flanges are manufactured to the ISO Standard and are compatible with other supplier’s product.
ISO400 Claw Clamp Blank Flange
SKU: ISO400BK
ISO Claw Clamp 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. ISO Claw Clamp Blank Flanges are supplied in a plastic bag with a protective plastic cap.ISO Claw Clamp Blank Flanges are manufactured to the ISO Standard and are compatible with other supplier’s product.
ISO400 Bored 406mm Fixed Bolted Flange
SKU: ISO400F406
ISO Fixed Bolted Bored Flanges are used for welding onto tube to produce ports and connectors when manufacturing fabrications.Manufactured from: 304 Stainless Steel. ISO Fixed Bolted Bored Flanges are supplied in a plastic bag.ISO Fixed Bolted Bored Flanges are manufactured to the ISO Standard and are compatible with other supplier’s product.
ISO400 Fixed Bolted Blank Flange
SKU: ISO400FBK
ISO Fixed Bolted 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. ISO Fixed Bolted Blank Flanges are supplied in a plastic bag.ISO Fixed Bolted Blank Flanges are manufactured to the ISO Standard and are compatible with other supplier’s product.
ISO400 Straight Connector
SKU: ISO400SC
ISO Straight Connectors are used to extend ports and pipework to a required length.Manufactured from: 304 Stainless Steel. Helium Leak tested to 10-8 mbar. Straight Connectors are supplied in a plastic bag with protective plastic caps.The Straight Connectors are manufactured to the ISO Standard and are compatible with other supplier’s product.
ISO400 Stainless Steel Centering Ring with Nitrile O-Ring
SKU: ISO400SNCR
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.
£ 332.10 332.1 GBP
ISO400 Stainless Steel Trapped Centering Ring - Aluminium Outer
SKU: ISO400SNCRT
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.
ISO400 Stainless Steel Centering Rings with Viton O-Rings
SKU: ISO400SVCR
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.
£ 235.00 235.0 GBP
ISO400 Stainless Steel Trapped Centering Ring with Viton O-Ring - Aluminium Outer
SKU: ISO400SVCRT
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.
£ 273.17 273.17 GBP
ISO400 Claw Clamp Tubulation Fixed
SKU: ISO400TU
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.
£ 689.20 689.2 GBP
ISO500 Aluminium Centering Ring With Nitrile O-Ring
SKU: ISO500ANCR
ISO Aluminium 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: Aluminium and Nitrile. ISO Aluminium Centering Rings with Nitrile O rings are supplied in sealed plastic bags.ISO Aluminium Centering Rings with Nitrile O Rings are manufactured to the ISO Standard and are compatible with other supplier’s product.
ISO500 Aluminium Trapped Centering Ring with Nitrile O-Ring
SKU: ISO500ANCRT
ISO Aluminium Trapped Centering Rings with Nitrile O Rings & Outer Traps are used to connect two flanges together and create a vacuum seal with the use of a clamp.Manufactured from: Aluminium and Nitrile. ISO Aluminium Trapped Centering Rings with Nitrile O Rings are supplied in sealed plastic bags.ISO Aluminium Trapped Centering Rings with Nitrile O Rings are manufactured to the ISO Standard and are compatible with other supplier’s product.
ISO500 Aluminium Centering Rings with Viton O-Rings
SKU: ISO500AVCR
ISO 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. ISO Aluminium Centering Rings with Viton O Rings are supplied in sealed plastic bags.ISO Aluminium Centering Rings with Viton O Rings are manufactured to the ISO Standard and are compatible with other supplier’s product.
ISO500 Aluminium Trapped Centering Ring with Viton O Rings
SKU: ISO500AVCRT
ISO Trapped Centering Rings with Viton O Rings and Outer Traps are used to connect two flanges together and create a vacuum seal with the use of a clamp.Manufactured from: Aluminium and Viton. ISO Aluminium Trapped Centering Rings with Viton O Rings are supplied in sealed plastic bags.ISO Aluminium Trapped Centering Rings with Viton O Rings are manufactured to the ISO Standard and are compatible with other supplier’s product.
ISO500 Bored 508mm Claw Clamp Flange
SKU: ISO500B508
ISO Claw Clamp Bored Flanges are used for welding onto tube to produce ports and connectors when manufacturing fabrications.Manufactured from: 304 Stainless Steel. ISO Claw Clamp Bored Flanges are supplied in a plastic bag with a protective plastic cap.ISO Claw Clamp Bored Flanges are manufactured to the ISO Standard and are compatible with other supplier’s product.
ISO500 Claw Clamp Blank Flange
SKU: ISO500BK
ISO Claw Clamp 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. ISO Claw Clamp Blank Flanges are supplied in a plastic bag with a protective plastic cap.ISO Claw Clamp Blank Flanges are manufactured to the ISO Standard and are compatible with other supplier’s product.