Item - Check Valves Check Valve Flow Design Single Mechanism and Body Design Swing Body Material - Valves Stainless Steel Pipe or Tube Size 4 in Connection Type Flanged X Flanged Cracking Pressure 0.04 psi Max Temp - Valves 700 Degrees F Max Water Pressure - Valves 435 psi Seat Material Metal Application - Valves Non Corrosives Oil Pipeline Steam Water Length 14 1/64 in Cap to Inlet Center 7 71/100 in Standards ASME B16.34 ASME Class 300