Item - Check Valves Check Valve Flow Design Single Mechanism and Body Design Inline Swing Body Material - Valves PVC Pipe or Tube Size 6 in Connection Type Flange x Flange Cracking Pressure 12.5 psi Mounting Orientation Horizontal Vertical Seal Material EPDM Max Temp - Valves 140 Degrees F Min Temp - Valves 40 Degrees F Max Water Pressure - Valves 70 psi @ 73 Degrees F Max Steam Pressure - Valves Not Rated Flow - Valves 3 450 gpm Full Flow - Valves Yes