Item - Check Valves Check Valve Flow Design Single Mechanism and Body Design Inline Ball Body Material - Valves PVC Pipe or Tube Size 1 in Connection Type Socket x Socket Cracking Pressure 1 psi Mounting Orientation Horizontal Vertical Seal Material FKM Max Temp - Valves 120 Degrees F Min Temp - Valves 30 Degrees F Max Water Pressure - Valves 150 psi @ 120 Degrees F Max Steam Pressure - Valves Not Rated Seat Material FKM Full Flow - Valves No