Item - Check Valves Check Valve Flow Design Single Mechanism and Body Design Inline Swing Body Material - Valves Brass Pipe or Tube Size 1 1/2 in Connection Type FNPT x FNPT Cracking Pressure 0.725 psi Mounting Orientation Horizontal Seal Material Brass Max Temp - Valves 212 Degrees F Min Temp - Valves 32 Degrees F Max Water Pressure - Valves 200 psi @ 73 Degrees F Max Steam Pressure - Valves 120 psi WSP Seat Material Brass Flow - Valves 76 gpm Full Flow - Valves No