Item - Check Valves Check Valve, Flow Design Single, Mechanism and Body Design Inline Wafer, Body Material - Valves Cast Iron, Pipe or Tube Size 2 1/2 in, Connection Type Flanged Wafer x Flanged Wafer, Mounting Orientation Horizontal, Vertical, Seal Material Buna-N, Max. Temp. - Valves 100 Degrees F, Max. Water Pressure - Valves 200 psi @ 150 Degrees F, Max. Steam Pressure - Valves Not Rated, Seat Material Buna-N, Spring Material 316 Stainless Steel, Application - Valves Process Piping