Item - Check Valves Check Valve Flow Design Single Mechanism and Body Design Inline Swing Body Material - Valves Brass Pipe or Tube Size 1 in Connection Type FNPT x FNPT Cracking Pressure 0.750 to 1.000 psi Mounting Orientation Horizontal Vertical Seal Material Brass Min Temp - Valves -20 Degrees F Max Water Pressure - Valves 200 psi @ 150 Degrees F Max Steam Pressure - Valves Not Rated Seat Material Brass Flow - Valves 31 gpm Full Flow - Valves Yes