Item - Check Valves Check Valve Flow Design Single Mechanism and Body Design Inline Poppet Body Material - Valves Brass Pipe or Tube Size 3/8 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