Item - Check Valves Check Valve Flow Design Single Mechanism and Body Design Inline Silent Body Material - Valves Cast Iron Pipe or Tube Size 2 1/2 in Connection Type Flange x Flange Cracking Pressure 0.300 to 1.250 psi Mounting Orientation Horizontal Vertical Seal Material Metal Max Temp - Valves 300 Degrees F Min Temp - Valves 60 Degrees F Max Water Pressure - Valves 200 psi @ 250 Degrees F Max Steam Pressure - Valves 200 psi WSP Seat Material Stainless Steel