Item - Check Valves Check Valve Flow Design Single Mechanism and Body Design Inline Double Disc Body Material - Valves Stainless Steel Pipe or Tube Size 8 in Connection Type Flange x Flange Cracking Pressure 0.300 to 1.250 psi Mounting Orientation Horizontal Vertical Seal Material Metal Max Temp - Valves 600 Degrees F Min Temp - Valves 60 Degrees F Max Water Pressure - Valves 285 psi @ 600 Degrees F Max Steam Pressure - Valves 285 psi WSP Seat Material Stainless Steel