Hy-Lok USA”s double-ferrule compression tube fittings are specifically designed for interchangeability with other major manufacturers. The types of companies switching to Hy-Lok tube fittings include engine manufacturers, turbine manufacturers, and large valve actuation shops in the power generation field. Hy-Lok tube fitting connections are gaugeable, which is an important feature for maintaining maximum safety during the installation of compression tube fittings. Hy-Lok’s online catalog, located at www.hylokusa.com, offers detailed tube fitting CAD models, pressure ratings, temperature ratings, and fractional & metric tube-end dimensions. The catalog provides technical data on tube-to-tube unions, tube-to-male pipe threads, tube-to-female pipe threads, and tube-to-weld ends. Standard construction materials include 316 stainless steel, brass, carbon steel, and Monel 400, as well as custom alloys upon request.