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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
ISO200 6 Way Cross
SKU: ISO200XX
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.
ISO250 Aluminium Centering Ring With Nitrile O-Ring
SKU: ISO250ANCR
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.
£ 37.70 37.7 GBP
ISO250 Aluminium Trapped Centering Ring with Nitrile O-Ring
SKU: ISO250ANCRT
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.
ISO250 Aluminium Centering Rings with Viton O-Rings
SKU: ISO250AVCR
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.
£ 39.54 39.54 GBP
ISO250 Aluminium Trapped Centering Ring with Viton O Rings
SKU: ISO250AVCRT
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.
£ 45.44 45.44 GBP
ISO250 Claw Clamp Bored 254mm Flange
SKU: ISO250B254
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.
£ 130.71 130.71 GBP
ISO250 Bored 267mm Claw Clamp Flange
SKU: ISO250B267
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.
£ 98.80 98.8 GBP
ISO250 Claw Clamp Blank Flange
SKU: ISO250BK
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.
£ 135.70 135.7 GBP
ISO250 90 Degree Elbow
SKU: ISO250E
ISO 90 Degree Elbows were manufactured for in vacuum process systems to help alter the direction of pipework.This product is made from 304 stainless steel. The ISO 90 Degree Elbow is also helium leak tested up to 10-8 mbar. The product is packed in a plastic bag and sealed by protective plastic caps.This product is compatible with alternative supplier’s products and is manufactured to the ISO standards.
ISO250 Bored 267mm Fixed Bolted Flange
SKU: ISO250F267
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.
ISO250 Fixed Bolted Blank Flange
SKU: ISO250FBK
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.
£ 214.50 214.5 GBP
ISO250 Hydroformed Flexible Bellows, SS
SKU: ISO250FXB
ISO Hydroformed Flexible Bellows are used to connect parts together when a solid straight connector is impractical or where the two parts move independently and flexibility is required.Manufactured from: 304 Stainless Steel. Helium Leak tested to 10-8 mbar. ISO Hydroformed Flexible Bellows are supplied in a plastic bag with protective plastic caps.ISO Hydroformed Flexible Bellows are manufactured to the ISO Standard and are compatible with other supplier’s product.
ISO250 to ISO100 Tubulated Reducing Connector
SKU: ISO250R100
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.
ISO250 to ISO160 Tubulated Reducing Connector
SKU: ISO250R160
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.
ISO250 to ISO200 Tubulated Reducing Connector
SKU: ISO250R200
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.
ISO250 to ISO63 Tubulated Reducing Connector
SKU: ISO250R63
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.
ISO250 to ISO80 Tubulated Reducing Connector
SKU: ISO250R80
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.
ISO250 Straight Connector
SKU: ISO250SC
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.
ISO250 Stainless Steel Centering Ring with Nitrile O-Ring
SKU: ISO250SNCR
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.
£ 62.10 62.1 GBP
ISO250 Stainless Steel Trapped Centering Ring - Aluminium Outer
SKU: ISO250SNCRT
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.