Pressure reducing valve for water is mainly used in various building water supply systems, fire-fighting systems, central air conditioning systems, heating systems, etc. It is used for branch pipe pressure reduction, which can make water supply pressure distribution more balanced, avoid partial water supply overpressure, and optimize water supply zoning of high-rise buildings.Caution.Installation should pay attention to make the direction of flow of the medium in the pipeline and the direction of the arrow shown on the valve rest consistent.