The FKB series ball valve provides a leak-tight seal for applications up to 15,000 psig. The Trunnion-style ball valve features a direct-load design, which delivers a more consistent seal across a full range of pressures. These valves feature a 0.209-in. orifice, 316-stainless-steel body construction, and reinforced PEEK seat seals. The valves are rated for temperatures of 0–250°F and maintain a full pressure rating throughout the operating temperature range. Available O-ring materials include nitrile, fluoroelastomer and perfluoroelastomer. All wetted materials are compatible with most hydrocarbons. Offered in a two-way configuration, the valves are available with medium-pressure tube fitting end connections, which provide single-turn makeup, or makeup by torque. The end connections employ a two-ferrule design to deliver robust tube grip, leak-tight gas seal and vibration resistance. End connections sizes are 1/4, 3/8, and 1/2 in. — Swagelok, Solon, Ohio
Kate Torzewski