The KF/ISO system of vacuum components is the family of specialty flanges, elbows, tees, crosses, bellows, etc. having interface dimensions defined by the International Standards Organization. The flanges are secured by a clamp acting on the outer flange surface. The ISO sequence goes to 20" (500mm). The maximum tubing size in the KF sequence is 2" (50mm). The letters KF often used in describing the system denote the "small" series. KF is derived from "Kleinflansch", German for "small flange".
KF/ISO components are very modular by design. There are a large number of interchangeable components available. HIS supplies approximately 350 different KF/ISO components, including elbows, tees, crosses and valves, and has the capability to manufacture specials to our customers specifications.
