Item - Check Valves Check Valve, Flow Design Single, Mechanism and Body Design Inline Spring, Body Material - Valves Bronze, Pipe or Tube Size 1/2 in, Connection Type Sweat x Sweat, Cracking Pressure 0.750 to 1.000 psi, Mounting Orientation Horizontal, Seal Material Bronze, Max. Temp. - Valves 353 Degrees F, Min. Temp. - Valves -20 Degrees F, Max. Water Pressure - Valves 250 psi @ 150 Degrees F, Max. Steam Pressure - Valves Not Rated, Seat Material Bronze, Spring Material Bronze