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ISO vacuum bored blank flanges are made of 304/316L stainless steel. Centering ring and seal assemblies include a stainless steel centering ring and aluminum retainer ring, with O-rings available in Viton or Buna-N. Single and double claw clamps are stainless steel. Sizes range from ISO63 to ISO630.
ISO-BF bolted flanges have a bore for standard inch tubes/piping or a blank-off to seal ports. Infinitely rotatable, they are compatible with NW63–NW630 ISO-BF bolted vacuum flanges and join using ISO flange bolt-and-nut sets.
ISO-BF rotatable bolt rings have a bore for standard inch tube and piping diameters. ISO-MF stainless steel retaining rings are used to secure ISO-MF vacuum flange rotatable bolt rings.
ISO-BF bolted flanges feature a bore for standard inch tube and piping diameters, or a blank-off to close a port. They are infinitely rotatable and compatible with NW63 to NW630 size ISO-BF bolted vacuum flanges. Bolted flanges are joined using our ISO flange bolt and nut set.