CF and Wire Seal flanges are part of the same family of Ultra-High vacuum components that compress a copper gasket between two stainless steel flanges to create a vacuum tight seal.

CF flange systems are more commonly used within the vacuum industry and therefore have a larger standard product offering. CF flanges are specified by their outer diameter.

A&N CF flanges are manufactured to industry standards and are interchangeable with all other Conflat® style flanges and fittings. Industry standard sizes range from 1.33” to 16.5”.

Wire Seal flanges are desirable for those applications that require flanges larger than those available with the CF flange system. Wire Seal flanges have no industry standard dimension specifications.

While vacuum component manufacturers endeavor to create interchangeable flanges, the only way to ensure compatibility is to purchase a mating set of wire seal flanges from a single manufacturer.