Item - Check Valves Check Valve Flow Design Single Mechanism and Body Design Swing Body Material - Valves Stainless Steel Pipe or Tube Size 12 in Connection Type Flanged X Flanged Cracking Pressure 0.06 psi Max Temp - Valves 950 Degrees F Max Water Pressure - Valves 35 psi Seat Material Metal Application - Valves Corrosives Oil Pipeline Steam Water Length 27 31/64 in Cap to Inlet Center 13 2/5 in Standards ASME B16.34 ASME Class 150