Item - Check Valves Check Valve Flow Design Single Mechanism and Body Design Piston Body Material - Valves Stainless Steel Pipe or Tube Size 1 in Connection Type Threaded X Threaded Mounting Orientation Horizontal Vertical Max Temp - Valves 500 Degrees F Max Water Pressure - Valves 1 050 psi Seat Material Stellite Spring Material 316 Stainless Steel Application - Valves Corrosives Flammable Process Piping Toxic Length 4 3/8 in Cap to Inlet Center 3 7/100 in