Angle-seat Valve S.S. 316L, 1 1/2" NPT with Pneumatic Actuator, Normally closed Spring return normally open. Air to open Spring to close Body Materials: Stainless Steel 316 CF8M Temperature Range: PTFE: -10 C to 180 C (14 F to 356 F) Water, liquid, neutral gases up to 230 psi Steam up to 140 psi