Item - Check Valves Check Valve Flow Design Single Mechanism and Body Design Inline Spring Body Material - Valves Bronze Pipe or Tube Size 1 1/4 in Connection Type FNPT x FNPT Cracking Pressure 3.5 psi Mounting Orientation Horizontal Vertical Max Temp - Valves 250 Degrees F Max Water Pressure - Valves 200 psi Max Steam Pressure - Valves Not Rated Spring Material 304 Stainless Steel Flow - Valves 23.5 gpm Application - Valves General Purpose Length 3 5/8 in Width 2 1/8 in