The ISO range of flanges and fittings are manufactured from high quality 316L (1.4404) stainless steel.


All shown configurations use an ‘O’ ring seal (made of Nitrile or Viton) held in place by a centerring ring. Tightening pressure is exerted with clamps, claw clamps or bolts. This
effective down to 10 EXP-8 mbar. With Viton ‘O’ rings the assemblies are bakeable to 200°C (sustained 150°C).

There are various types of ISO flanges:
1, ISO-K (clamp) flanges with a grooved ring for inserting clamps and 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.




pdficonOur full range of ISO Vacuum Components can be viewed here.