Item - Check Valves Check Valve Flow Design Single Mechanism and Body Design Inline Swing Body Material - Valves Bronze Pipe or Tube Size 1 in Connection Type Sweat x Sweat Cracking Pressure 0.750 to 1.000 psi Mounting Orientation Horizontal Seal Material Bronze Max Temp - Valves 200 Degrees F Min Temp - Valves -20 Degrees F Max Water Pressure - Valves 300 psi @ 150 Degrees F Max Steam Pressure - Valves Not Rated Seat Material Brass Flow - Valves 31 gpm