Swagelok Company”s FKB Series medium-pressure ball valve is designed for improved cycle life in the field. The trunnion-style ball valves provide a leak-tight seal for applications up to 15,000 PSIG (1034 bar) and feature Swagelok’s patent-pending direct-load design for a more consistent seal across a full range of pressures. Stem and end-connection seals are designed to prevent shell leakage and provide cycle life even in severe conditions. The two-way 8FKB ball valve complements the original 6FKB ball valve introduced in May 2009. The 8FKB ball valve, with a 0.375 in. (4.5 mm) orifice, offers 1/2″ gaugeable Swagelok medium-pressure tube fitting end connections or 1/2″ female NPT. The 6FKB ball valve is available with 0.209 in. (5.3 mm) orifice and 1/4, 3/8, or 1/2 in. Swagelok medium-pressure tube fitting end connections, or female NPT end connections. All valves feature 316 stainless steel body construction, and reinforced PEEK seat seals. The valves are rated for temperatures from 0 F to 250 F (-17 C to 121 C) and maintain a full pressure rating throughout the entire operating temperature range. Multiple O-ring materials are available, including nitrile, fluoroelastomer, and perfluoroelastomer.