Item - Check Valves Check Valve, Flow Design Single, Mechanism and Body Design Inline Poppet, Body Material - Valves Brass, Pipe or Tube Size 1/2 in, Connection Type Compression x Compression, Cracking Pressure 10 psi, Mounting Orientation Horizontal, Vertical, Seal Material Nitrile, Max. Temp. - Valves 275 Degrees F, Min. Temp. - Valves -30 Degrees F, Max. Water Pressure - Valves 3,000 psi @ 100 Degrees F, Max. Steam Pressure - Valves Not Rated, Seat Material Nitrile