Pressure Relief Valve Body Material Brass Inlet Type NPT Outlet Type NPT Inlet Size 1/2 in Outlet Size 1/2 in Factory Set Pressure 150 psi Pressure Range 50 to 175 psi Disc Material Buna-N Overall Height 3 in Application Fire Protection Systems Spring Material Stainless Steel Temp Range 180 Degrees F Test Lever No Compliance BAA Compliant Standards BAA Compliant