Item - Check Valves Check Valve Flow Design Single Mechanism and Body Design Swing Body Material - Valves Stainless Steel Pipe or Tube Size 1 in Connection Type Flanged X Flanged Cracking Pressure 0.03 psi Max Temp - Valves 300 Degrees F Max Water Pressure - Valves 560 psi Seat Material Metal Application - Valves Non Corrosives Oil Pipeline Steam Water Length 7 63/64 in Cap to Inlet Center 3 11/100 in Standards ASME B16.34 ASME Class 300