Item - Check Valves Check Valve, Flow Design Single, Mechanism and Body Design Y Swing, Body Material - Valves Bronze, Pipe or Tube Size 2 1/2 in, Connection Type FNPT x FNPT, Cracking Pressure 0.750 to 1.000 psi, Mounting Orientation Horizontal, Vertical, Seal Material Chrome, Cobalt, Max. Temp. - Valves 550 Degrees F, Min. Temp. - Valves -20 Degrees F, Max. Water Pressure - Valves 600 psi @ 150 Degrees F, Max. Steam Pressure - Valves 300 psi WSP, Seat Material Bronze, Flow - Valves 192 gpm