Item – Check Valves Check Valve, Flow Design Single, Mechanism and Body Design Y Swing, Body Material – Valves Bronze, Pipe or Tube Size 1 1/4 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 54 gpm