The difference between proportional pressure reducing valve and adjustable pressure reducing valve
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Release Time：2021-05-21
Proportional pressure reducing valve is by replacing the valve core and cylinder to achieve the import and export of different pressure values, itself can not adjust the outlet pressure value, when the inlet pressure value increased, the outlet pressure value increased at the same time. When the inlet pressure value decreases, the outlet pressure value decreases proportionally at the same time. There is no guarantee that the outlet pressure is a constant value, which is the main difference between the adjustable pressure reducing valve.
Proportional pressure reducing valve is by replacing the valve core and cylinder to achieve the import and export of different pressure values, itself can not adjust the outlet pressure value, when the inlet pressure value increased, the outlet pressure value increased at the same time. When the inlet pressure value decreases, the outlet pressure value decreases proportionally at the same time. There is no guarantee that the outlet pressure is a constant value, which is the main difference between the adjustable pressure reducing valve.
Adjustable pressure reducing valve generally has an adjustment spring, by adjusting the screw to change the compression of the adjustment spring, and then change the outlet pressure set value, and is continuously adjustable within a certain pressure range. The proportional pressure reducing valve has no adjustable spring and cannot continuously adjust the outlet pressure.
In the water supply system, the proportional pressure reducing valve is generally used together with the adjustable pressure reducing valve. The proportional pressure reducing valve is installed in front of the adjustable pressure reducing valve, mainly to reduce the outlet pressure value in proportion. Then through the adjustable pressure reducing valve for the user to set a pressure value. Keep the user water supply stable. Not only can play the role of grading decompression, but also improve the safety of water supply, to avoid a valve failure, resulting in overpressure of water supply.
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