Item - Check Valves Check Valve Flow Design Dual Mechanism and Body Design Inline Body Material - Valves Bronze Pipe or Tube Size 1 in Connection Type FNPT x FNPT Mounting Orientation Horizontal Seal Material EPDM Max Temp - Valves 180 Degrees F Min Temp - Valves 33 Degrees F Max Water Pressure - Valves 175 psi Max Steam Pressure - Valves 125 psi WSP Seat Material Buna-N Spring Material Stainless Steel Application - Valves General Purpose Length 4 3/4 in