Series N55B 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 integral stainless steel strainer, thermoplastic seat, bronze sealed spring cage for waterworks pit installations and thermal expansion bypass. The N55B is available with either threaded, solder, PEX, quick-connect or CPVC end connections. Maximum Working Pressure: 400psi , Adjustable Reduced Pressure Range: 25 to 75psi, Standard Pressure Setting: 50psi