Stainless steel vacuum clamp fitting, a complete iso-kf union including two vacuum ferrules, one center ring, one clamp and one o-ring.
Shuangzhan machinery (newtek) provides all stainless steel vacuum fittings with good quality, we do alibaba store as well. one year warranty.
The ISO-KF components are assembled by inserting a centering ring between the two flange faces, then securing the assembly with a flange encompassing clamp.
ISO-KF wing-nut clamps are hand tightened until metal contact is felt.
These Hinge Clamp vacuum fittings follow ISO-KF standards. They are commonly used to build foreline vacuum plumbing and process systems. They are often called quick flange fittings because they are quick to assemble. A circumferential clamp and centering ring form the vacuum seal between the connecting flanges (please see top right figure - click to enlarge). The centering ring contains a rubber elastomer o-ring. The standard sizes for quick flange fittings are KF-10, KF-16, KF-25, KF-40, and KF-50 with flange sizes NW-10, NW-16, NW-25, NW-40, and NW-50, respectively. They are made of Aluminum or stainless steel.