KF Flanges

Accuvac Technology Specializes in High Vacuum KF, also called NW, QF and DN Flanges. They are Made in USA in our ISO 9001-2008 approved California Facility. Fabrication processes include advance Waterjet Cutting, CNC Turning and CNC Milling. These flanges have a chamfered back-surface held by a cicumferential clamp tightened by thumbscrews or over-center lever. The Seal is an elastomeric O-Ring mounted in a centering ring which aligns the flanges and holds the O-Ring in position – Important features to consider in selecting a KF Flange: They are Fabricated to Vacuum Industry Standards and are Interchangeable with all other KF-Flanges and Fittings. • Vacuum Rating of these Flanges is 1X10 to -8 Torr and Temp Range 0 to 180 Deg C • These Flanges are genderless in the KF Flange System designed for Elastomer Seals and are Available with Clamp Style (K) assembly system • Size availability is ISO-63 to ISO-500 • Use only DFAR Stainless Steel 304L and 304LN. Material Certification is available upon request • Coolant used in fabrication is water soluble and non-sulfur based

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