Pressure reducing valve / water pump control valve

Product purpose:
Sht700x water pump control valve is installed at the water outlet of the water pump. Before the water pump stops running, close the main valve to about 90%. When the water pump stops running, close the remaining 10% again, which can effectively protect the water pump from water hammer, water hammer and water pump reverse.
Structural features:
1. The pump control valve is of streamlined design, which can be opened and closed accurately through the guidance and control of the solenoid valve. It is safe and reliable to use, and can effectively prevent the sound of water hammer and river water
2. Prevent the backflow of the pumped water, effectively protect the water pump from the impact of backflow and reverse rotation
3. Long service life, convenient installation and maintenance
4. It is suitable for direct water supply by water pump and domestic water pipe network system in industries, mines, enterprises and high-rise buildings
Product standards:
GB/T 17241.6-1998  GB/T 9113-2010  GB/T 13927  GB/T 12221
After the opening and closing of the pressure reducing valve, the pressure of the medium is kept within the specified opening and closing range by adjusting the opening and closing of the pressure reducing valve. This type of valve shall be installed horizontally in the pipeline.
The pressure reducing valve is a special device that automatically reduces the working pressure of the pipeline. Its function is to reduce the higher pressure of the pipeline in front of the valve to the required level of the pipeline behind the valve after a given pressure reducing range. Pressure reducing valves are widely used in high-rise buildings, areas with high water pressure in urban water supply networks, mines and gas pipelines.
The pressure reducing valve is mainly composed of valve body, main spring, main valve core, main valve seat, piston, pilot spring, pilot valve core, pilot valve seat, pilot piston and adjusting spring. Turn the adjusting screw, compress the adjusting spring, open the pilot valve core, and the medium enters above the piston from the side. Because the piston area is larger than the valve core area of the main valve, push the piston to move downward to open the main valve. The pressure of the adjusting spring is balanced behind the valve to change the opening of the pilot valve, so as to change the pressure above the piston, control the opening of the main valve core to keep the pressure behind the valve constant.
The pressure reducing valve can be divided into diaphragm type, spring diaphragm type, piston type, lever type and bellows type according to the structural form; According to the number of valve seats, it can be divided into single seat type and double seat type; According to the position of the valve disc, it can be divided into positive action type and reaction type.