Item - Check Valves Check Valve Flow Design Single Mechanism and Body Design Inline Wafer Body Material - Valves Carbon Steel Pipe or Tube Size 8 in Connection Type Flanged Wafer x Flanged Wafer Cracking Pressure 1.046 psi Mounting Orientation Horizontal Vertical Seal Material Buna-N Max Temp - Valves 100 Degrees F Max Water Pressure - Valves 285 psi @ 100 Degrees F Max Steam Pressure - Valves Not Rated Seat Material Buna-N Spring Material Inconel X-750 Flow - Valves 1 800 gpm