Safety Relief Valve Body Material Bronze Inlet Type MNPT Outlet Type FNPT Inlet Size 2 in Outlet Size 2 1/2 in Factory Set Pressure 25 psi Disc Material Bronze Overall Height 13 5/8 in Application Steam Overall Length 3 3/8 in Seat Material Metal Spring Material ASTM A-313 TY 631 Temp Range -60 Degrees to 406 Degrees F Test Lever Yes Compliance Section I Steam