Series LF223, LF223S Lead Free High Capacity Water Pressure Reducing Valves are used in commercial, industrial, and institutional applications to reduce incoming water pressure for protection of plumbing system components and to reduce water consumption. It consists of a Lead Free brass body construction (2-1/2 in is iron), enlarged diaphragm, spring cage and seat orifice for super capacity, sealed spring cage for waterworks pit installations and an optional thermal expansion bypass. Available with NPT threaded female inlet and NPT female threaded outlet with (LF223-S) or without (LF223) strainer.