Pneumatic Angle Seat Valves - Normally OpenValve Function: On Off Valve Type: Piston Actuation: Air Valve Stating Position: Single Acting Actuation Mechanism: Air to Open, Spring Return Media Pressure Range: 0 to 240 PSIG Temperature Range: 15 tp 355F Air Pilot Pressure Range: 60to 145 PSIG Shell of Actuator Material: Polyamide and 304SS Body Material: 304SS Valve Seat Material: PTFE Piston Material: 304SS TC End to TC End Length: 4" Air Connection: 1 4" 18 For Use with: water, air, 5%