First, Y42X water pressure reducing valve structural features and uses
This series of valves are direct-acting membrane spring pressure reducing valve. Mainly by adjusting the spring, diaphragm, piston, seat, valve flap and other components. Direct sensing of the use of the diaphragm downstream pressure-driven valve disc, valve opening to complete decompression regulator function. 

Water valve in urban construction, high-rise building hot and cold water supply system, can replace the conventional district water pipes, saving equipment. Also in the usual hot and cold water pipe network, from the role of decompression regulator. 

This product pressure regulator, steady voltage stability, suitable for water and non-corrosive liquid medium pipeline.
 

Second, Y42X water pressure reducing valve main technical parameters and performance indicators

* Shell test does not include diaphragm, bonnet

Third, Y42X water main components of the valve material

Fourth, Y42X valve with water flow coefficient (Cv)

Five, Y42X water pressure relief valve Dimensions (PN1.0-2.5)