Item - Check Valves Check Valve Flow Design Single Mechanism and Body Design Inline Ball Cone Body Material - Valves Bronze Pipe or Tube Size 2 in Connection Type FNPT x FNPT Cracking Pressure 0.5 psi Mounting Orientation Horizontal Vertical Seal Material EPDM Max Temp - Valves 180 Degrees F Min Temp - Valves 33 Degrees F Max Water Pressure - Valves 400 psi Max Steam Pressure - Valves 125 psi WSP Seat Material RPTFE Spring Material Stainless Steel Flow - Valves 81 gpm