A self-contained, pilot operated valve is disclosed which is adapted to be interposed in a fluid flow line to reduce the pressure therein from one level upstream of the valve to a desired lower level downstream of the valve.Water Control valves The reducing valve is fluid pressure responsive, employs system fluid as a normally closed reducing valve having fluid flow characteristics across the valve and valve seat thereof of a normally open reducing valve.Reducing Valves The normally open flow is obtained by seating the flow control valve element against its valve seat in the direction opposite the direction of fluid flow through the valve, and the normally closed characteristic is achieved by applying a force on the valve element sufficient to seat the valve elementREDUCING VALVES when the downstream pressure is at the desired level.

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