Pilot-Operated Pressure Regulator Series E Body Material Cast Iron Inlet Size 1 1/4 in Outlet Size 1 1/4 in Length 6 1/2 in Height 13 7/8 in Pressure Adjustment Range 10 to 100 psi Max Temp 450 Degrees F Max Pressure 250 psi Standards ASME B16.1 with ANSI Class 4 Seat Tightness