Vacuum/Pressure Rlf 3/4 NPT 0 to 20 psi

Vacuum / Pressure Relief Valve Valve Inlet Port 3/4 in NPT Preset Setting (PSI) 0 to 14.7 Valve Vacuum Range 0 to 30 in Hg Max CFM - Valves 60 cfm Max Temp 250 Degrees F Operational Pressure Range 0 to 20 psi Brass Body Material Nylon Poppet Nitrile Seal Material Stainless Steel Spring Material Hex (In.) 1 1/16 in Length (In.) 2 3/4 in Easily Convert from Vacuum to Pressure Relief by Reversing Poppet and Spring Rated CFM @ Set Pressure - Vacuum / Pressure Relief Valve