STC, 2KS-1/2, 2KS 1/2" NPT PTFE Seal Single Acting 316 SS Angle Seat Valve w/ 50mm SS Air ActuatorFeatures:Valve Body: Cast 316 Stainless Steel (CF8M).Actuator: Stainless Steel (Designed for harsh applications).PTFE.Service Medium: Air, Gas, Liquid, Oil, Steam, Water (compatible with wetted surfaces).Installation Orientation: Any Orientation.Pilot Controlling Medium: Air, Inert Gas.