ISO-F Bored Flanges,ISO Fixed bore Flanges

ISO–F bored flanges are made from stainless steel 304 and are bored for common tube sizes

The ISO flange (also called Large ISO) is used for HV chamber ports and is available in two distinct styles; ISO-K which uses clamp fasteners and ISO-F which uses nut and bolt fasteners. A variety of bolt/clamp options permit joints between mixed ISO-K and -F flanges.

The design principles of ISO and KF seals are identical. Each flange face is counter-bored or grooved to receive a metal centering ring with an elastomeric o-ring around its O.D. As with KF, the ISO centering ring both aligns the flanges and holds the o-ring in place.

ISO flanges are limited (by the o-ring’s properties) to applications with temperatures between ~0° C and 120–180° C, and pressure from atmosphere to ~10^-8 torr or mbar.

Our ISO-F Flanges are compatible to the ISO Standard 1609 Specification.

 ISO-F vacuum fittings usually consist of a flange, an O-Ring, and a centering ring. Unlike ISO-K, flanges are sturdy with bolts. See below picture for your reference.