Permaseal Plug Valves feature a non-lubricated tapered plug and two individual seats to provide a double seal and bi-directional shutoff. The self-aligning double seat, dynamic stem seal, and top-entry design allow for easy maintenance. Numerous. Special construction options are available to meet a variety of applications. Size Range: 5-6" (15-150mm) Temperature Range: to 1000 F (540 C) ANSI Class Rating: 150,300 Pressure Rating: 275-740 psi CWP (1890-5100 kPa) ANSI B 16.104 Shutoff Class: Carbon graphite seat, Class IV; resilient seat, Class VI Body Material: Carbon steel, 316 stainless steel, Alloy 20, ductile iron, Monel, Hastelloy C Valve Style: Tapered plug; 2-way, 3-way, jacketed, double block and bleed, flush through Actuator Type: Lever, hand-wheel, Compak double-acting or spring-return, electric motor