Pressure reducing valve

The utility model provides a pressure reducing valve, and belongs to the technical field of valve manufacturing. The problems that an existing pressure reducing valve is complex in structure, small in flow and the like are solved. The pressure reducing valve comprises a valve body and a valve cover, the two ends of the valve body are the water inlet end and the water outlet end respectively, a valve seat is arranged in the valve body, a water passing hole is formed in the middle of the valve seat, the valve seat is provided with an upper cavity, the upper cavity is communicated with the water inlet end through a first semicircular drift diameter hole, the valve seat is provided with a lower cavity, and the lower cavity is communicated with the water outlet end through a second semicircular drift diameter hole. A valve rod is inserted into the valve body in a sealed mode, the outer wall of the bottom end, axially penetrating through the water passing hole, of the valve rod is fixedly connected with a sealing g