Item – Check Valves Check Valve, Flow Design Single, Mechanism and Body Design Inline Swing, Body Material – Valves Carbon Steel, Pipe or Tube Size 12 in, Connection Type Flange x Flange, Cracking Pressure 0.065 psi, Mounting Orientation Horizontal, Seal Material 316 Stainless Steel, Max. Temp. – Valves 800 Degrees F, Min. Temp. – Valves -20 Degrees F, Max. Water Pressure – Valves 740 psi @ 100 Degrees F, Max. Steam Pressure – Valves 410 psi WSP, Seat Material Carbon Steel