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ISO Vacuum Fittings Overview

The ISO range of fittings and flanges are manufactured from stainless steel to a high quality.

Fig 2 shows all the configurations; using wall clamps, double claw clamps or bolts tightening together two flanges onto an ‘O’ ring seal (made of Nitrile or Viton) held in place by a centering ring.

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 Nuts and 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 into rotatable ISO-F flanges.

Material: Stainless steel 304L Bakeable to 200’C (150’C continuous) Vacuum rating 1×10-8mbar

Wide range of Crosses , Elbows & Tees are available

Bored Flanges For Welding To Stainless Steel Tube

ISO Vacuum Fittings

NW of the flange no. of required clamps
NW 63 4
NW 80 4
NW 100 4
NW 160 4
NW 200 6
NW 250 6
NW 320 8
NW 400 8
NW 500 12
NW 630 12
  1. ISO-K flange fixed to vacuum chamber using wall clamps
  2. ISO-K flange fixed to ISO-F flange using wall clamps, nuts and washers
  3. . Two ISO-K flanges fixed together using double claw clamps, which is the most commonly used configuration
  4. ISO-F flange fixed to vacuum chamber using bolts, washers and tapped blind holes
  5. ISO-K flange fixed to ISO-F flange using bolt rings, bolts, nuts and washers
  6. Two ISO-F flanges fixed together using bolts, nuts and washers

ISO Claw Clamp Blank Flanges

ISO Fixed Bolted Blank Flanges

ISO Claw Clamp Bored Flanges

ISO Fitting iso claw clamp blank flanges ISO Fitting iso fixed bolted flanges ISO Fitting iso claw clamped bored flanges

ISO Fixed Bolted Bored Flanges

ISO Claw Clamp Tubulations

ISO Straight Connectors

ISO Fittings Fixed Bolted Bored Flanges ISO Fittings ISO Claw Clamp Tubulations ISO Fittings Straight Connectors

ISO Tubulated Reducing Connectors

ISO TO CF Tubulated Adaptors

ISO TO KF Tubulated Adaptors

ISO Fittings Straight Connectors ISO Fittings Tubulated Reducing Connectors ISO Fittings ISO TO CF Tubulated Adaptors

ISO Tees

ISO Unequal Tees Stainless Steel

ISO TO KF Reducing Cross

ISO Fittings ISO tees ISO Fitings Unequal Tees Stainless Steel ISO Fitting ISO TO KF Reducing Cross

ISO to KF Reducing Tee

ISO 45 Degree Bend Elbows

ISO 90 Degree Elbows

ISO Fiiting ISO to KF Reducing Tee ISO FItting ISO 45 Degree Bend Elbow ISO Fitting ISO 90 Degree Elbow

ISO 4-Way Crosses

ISO Reducing 4-Way Crosses, Stainless Steel

ISO 6-Way Crosses

ISO FIttings ISO 4-Way Crosses ISO Fittings ISO Reducing 4-Way Crosses, Stainless Steel ISO Fittings ISO 6-Way Crosses

ISO Flexible Hoses, Stainless Steel

ISO Hydroformed Flexible Bellows, Stainless Steel

ISO Wall Clamps Mild Steel, Zinc Plated

ISO FItting ISO Flexible Hoses, Stainless Steel ISO Fitting ISO Hydroformed Flexible Bellows, Stainless Steel ISO Fitting ISO Wall Clamps Mild Steel, Zinc Plated

ISO Wall Clamps Stainless Steel

ISO Wall Clamps, Aluminium

ISO Wall Clamps, Steel Nuts And Washers, Aluminium

ISO Fitting ISO Wall Clamps Stainless Steel ISO Fittings ISO Wall Clamps, Aluminium

ISO Wall Clamps, Steel Nuts And Washers, Mild Steel, Zinc Plated

ISO Double Claw Clamps, Mild Steel, Zinc Plated

ISO Double Claw Clamps, Stainless Steel

ISO Double Claw Clamps, Aluminium

ISO Stainless Steel Centering Rings, Viton O Ring

ISO Aluminium Centering Rings, Viton O Ring

ISO Stainless Steel Centering Rings, Nitrile O Ring

ISO Aluminium Centering Rings Nitrile O Ring

ISO Stainless Steel Trapped Centering Rings, Viton O Ring, Aluminium Outer

ISO Aluminium Trapped Centering Rings, Nitrile O Ring, Outer Trap

ISO Stainless Steel Trapped Centering Rings with Nitrile O Ring Aluminium Outer

ISO Aluminium Trapped Centering Rings with Viton O Ring & Outer Trap

ISO Nut Bolt And Washer Sets For Two Bolted Flanges

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