About Hoke (Circor Energy)

Hoke, a part of Circor Energy, is a USA-based company specializing in the manufacture of precision instrumentation valves and tube fittings. Known for safety, integrity, and reliability, Hoke's products include the GYROLOK® Tube Fittings designed for safe, reliable performance from cryogenic temperatures to high temperature bake out levels. The materials used for these fittings include 316 Stainless Steel, Monel, and Brass, with stainless steel front ferrules larger than 1” and 25mm being PFA coated. Hoke's fittings are available in a variety of sizes, with the tube fittings providing deep vacuum capability and leak-tight integrity at vacuum levels of 10-6 torr.