Series LFN223F Super Capacity Water Pressure Reducing Valves is designed to reduce incoming water pressure to a sensible level to protect plumbing system components and reduce water consumption. This series is suitable for water supply pressures up to 175psi (12.1 bar) and may be adjusted from 25 – 75psi (172 – 517 kPa). The standard setting is 50psi (345 kPa). Series LFN223F features an enlarged diaphragm, spring cage and seat orifice for super capacity performance. These valves also contain a semibalanced piston feature to assure rapid response to reduced pressure changes as well as to provide maximum flow with minor pressure drop.