Item - Check Valves Check Valve Flow Design Single Mechanism and Body Design Swing Body Material - Valves Stainless Steel Pipe or Tube Size 2 1/2 in Connection Type Flanged X Flanged Cracking Pressure 0.03 psi Max Temp - Valves 600 Degrees F Max Water Pressure - Valves 450 psi Seat Material Metal Application - Valves Non Corrosives Oil Pipeline Steam Water Length 11 1/2 in Cap to Inlet Center 5 67/100 in Standards ASME B16.34 ASME Class 300