Series N45B water pressure reducing valves are used in commercial and residential applications to reduce incoming water pressure for protection of plumbing system components and to reduce water consumption. It consists of a bronze body construction, stainless steel integral strainer, thermoplastic seat and cage, thermal expansion bypass, and sealed spring cage for waterworks pit installations. The N45B series is available in a variety of end connections including: threaded, solder, PEX, quick-connect and CPVC with both union and double union connections. Maximum Working Pressure: 400psi (27.6 bar), Adjustable reduced pressure range: 25 to 75 psi (172 to 517 kPa), Standard pressure setting: 50 psi (345 kPa).