Item - Check Valves Check Valve Flow Design Single Mechanism and Body Design Swing Body Material - Valves Stainless Steel Pipe or Tube Size 8 in Connection Type Flanged X Flanged Cracking Pressure 0.03 psi Max Temp - Valves 850 Degrees F Max Water Pressure - Valves 65 psi Seat Material Metal Application - Valves Corrosives Oil Pipeline Steam Water Length 19 31/64 in Cap to Inlet Center 9 29/100 in Standards ASME B16.34 ASME Class 150