D6761 Safety Relief Valve Body Material Bronze Inlet Type MNPT Outlet Type FNPT Inlet Size 1-1/2 In. Outlet Size 1-1/2 In. Factory Set Pressure 25 psi Pressure Range 10 to 250 psi Disc Material Bronze Overall Height 9-11/16 In. Application Steam Boiler Pressure Reducing Stations OEM Equipment etc Overall Length 3-15/16 In. Seat Material EPDM Spring Material Stainless Steel Temp Range -20 Degrees to 406 Degrees F Test Lever Yes Standards ASME Steam Service