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June 17, 2021

Pressure relief / sustaining / Back pressure Valve

Aone Best pressure relief/sustaining/back pressure valve can maintain the pressure of the upstream pipeline. It is a diaphragm type control valve controlled by hydraulic pressure of pipeline throught pressure relief pilot. The valve can be used for pressure relief, pressure sustaining, back pressure impact and other working conditions.

When working, the valve senses the pressure of inlet of the valve through the pressure relief pilot, which controls the valve to open and to close. When the inlet pressure exceeds the set value, the valve opens rapidly to maintain the pressure in the pipeline. After the pressure is released, the valve is slowly closed to prevent water hammer impact.

If the optional check feature is selected, when the reverse pressure is generated, the backflow fluid will enter the upper chamber, closing the valve and preventing the flow back.

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