Orifice-plate regulating stop valve

The utility model relates to an orifice plate type regulating stop valve, which is characterized in that a liquid flow hole inside a valve casing body is provided with a plane baffle plate with an orifice, a plane rotating plate with an orifice and a rotating shaft is tightly clung to the plane baffle plate, the orifices which are correspondingly matched with each other can be opened and closed by rotating the rotating shaft, and the adjustment of the stop of liquid flow can be reached thereby. The utility model solves the problems that the control of adjustment of the stop of the existing valve is hard, the adjustment is not accurate enough, etc. The utility model has the advantages that the structure is simple, the operation of the adjustment of the stop is easy, convenient, flexible, stable, and reliable, and the precision the control of the adjustment is high.