Item – Check Valves Check Valve, Flow Design Single, Mechanism and Body Design Piston, Body Material – Valves Stainless Steel, Pipe or Tube Size 1 1/2 in, Connection Type Threaded X Threaded, Mounting Orientation Horizontal, Vertical, Max. Temp. – Valves 650 Degrees F, Max. Water Pressure – Valves 975 psi, Seat Material Stellite, Spring Material 316 Stainless Steel, Application – Valves Corrosives, Flammable, Process Piping, Toxic, Length 5 63/64 in, Cap to Inlet Center 4 1/50 in