Exhaust Valve Maximum Operating Pressure 145 psi Minimum Operating Pressure 4.35 psi Inlet Size 1 in Air Inlet Type NPT Air Outlet Size 1 in Air Outlet Type NPT Inlet Gender Female Air Outlet Gender Female Body Material Finish Nickel Plated Maximum Operating Temperature 176 Degrees F Minimum Operating Temperature -4 Degrees F Standards REACH RoHS Compliant ISO 5598 Body Material Brass Overall Width 3 3/4 in Overall Length 4 5/16 in Overall Height 3 13/16 in