Series F127W Flanged High Capacity Water Pressure Reducing Valves are used in commercial and industrial applications to reduce incoming water pressure for protection of plumbing system components and to reduce water consumption. It consists of a triple-coated corrosion preventative iron body construction with flanged inlet and flanged outlet connections, replaceable disc, interchangeable diaphragm chamber, replaceable stainless steel seat and stainless steel stem. Size 4 in. is tapped for a bypass line and an auxiliary regulator. Maximum Working Pressure: 175psi (12.06 bar), Adjustable Reduced Pressure Range: 25 to 100psi (1.7 to 7.0 bar).