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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
ISO250 Stainless Steel Centering Rings with Viton O-Rings
SKU: ISO250SVCR
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.
£ 40.00 40.0 GBP
ISO250 Stainless Steel Trapped Centering Ring with Viton O-Ring - Aluminium Outer
SKU: ISO250SVCRT
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.
£ 48.07 48.07 GBP
ISO250 Tee
SKU: ISO250TE
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.
ISO250 Claw Clamp Tubulation Fixed
SKU: ISO250TU
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.
£ 550.00 550.0 GBP
ISO250 4 Way Cross
SKU: ISO250X
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.
ISO320/500 Double Claw Clamps, Mild Steel, Zinc Plated
SKU: ISO320/500DCMS
ISO Double Claw Clamps are used to clamp two flanges to a Centering Ring and O-ring creating a vacuum seal

Manufactured from: Mild steel and Zinc Plate. ISO Double Claw Clamps mild steel are supplied in sealed plastic bags.

ISO Double Claw Clamps mild steel are manufactured to the ISO standard and are compatible with other supplier’s products
£ 7.13 7.13 GBP
ISO320 Aluminium Centering Ring With Nitrile O-Ring
SKU: ISO320ANCR
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.
£ 100.00 100.0 GBP
ISO320 Aluminium Trapped Centering Ring with Nitrile O-Ring
SKU: ISO320ANCRT
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.
ISO320 Aluminium Centering Rings with Viton O-Rings
SKU: ISO320AVCR
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.
ISO320 Aluminium Trapped Centering Ring with Viton O Rings
SKU: ISO320AVCRT
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.
ISO320 Bored 324mm Claw Clamp Flange
SKU: ISO320B324
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.
£ 219.55 219.55 GBP
ISO320 Claw Clamp Blank Flange
SKU: ISO320BK
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.
£ 262.00 262.0 GBP
ISO320 Bored 324mm Fixed Bolted Flange
SKU: ISO320F324
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.
ISO320 Fixed Bolted Blank Flange
SKU: ISO320FBK
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.
£ 513.75 513.75 GBP
ISO320 Straight Connector
SKU: ISO320SC
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.
ISO320 Stainless Steel Centering Ring with Nitrile O-Ring
SKU: ISO320SNCR
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.
£ 121.00 121.0 GBP
ISO320 Stainless Steel Trapped Centering Ring - Aluminium Outer
SKU: ISO320SNCRT
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.
ISO320 Stainless Steel Centering Rings with Viton O-Rings
SKU: ISO320SVCR
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.
£ 79.29 79.29 GBP
ISO320 Stainless Steel Trapped Centering Ring with Viton O-Ring - Aluminium Outer
SKU: ISO320SVCRT
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.
£ 126.43 126.43 GBP
ISO320 Claw Clamp Tubulation Fixed
SKU: ISO320TU
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.
£ 499.00 499.0 GBP