Item - Check Valves Check Valve Flow Design Single Mechanism and Body Design Y Swing Body Material - Valves Bronze Pipe or Tube Size 1 1/4 in Connection Type FNPT x FNPT Cracking Pressure 0.500 to 0.750 psi Mounting Orientation Horizontal Seal Material Chrome Cobalt Max Temp - Valves 550 Degrees F Min Temp - Valves -20 Degrees F Max Water Pressure - Valves 400 psi @ 150 Degrees F Max Steam Pressure - Valves 200 psi WSP Seat Material Bronze Flow - Valves 54 gpm