Item - Check Valves Check Valve Flow Design Single Mechanism and Body Design Inline Swing Body Material - Valves Cast Steel Pipe or Tube Size 2 1/2 in Connection Type Flange x Flange Cracking Pressure 2 psi Mounting Orientation Horizontal Seal Material Chrome Cobalt Max Temp - Valves 1 000 Degrees F Min Temp - Valves -20 Degrees F Max Water Pressure - Valves 285 psi @ 100 Degrees F Max Steam Pressure - Valves 200 psi WSP Seat Material Chrome Cobalt Flow - Valves 221 gpm