Pressure Reducing Valve PRV Pressure Reducing Valve PRV
Pressure Reducing Valve PRV
Pressure Reducing Valve PRV

Pressure Reducing Valve PRV

Product Details:

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Product Description

PRESSURE REDUCING CONTROL VALVE

LEHRY Pressure reducing valve, is used to reduce a higher fluctuation upstream pressure, to a constant desired downstream pressure, through an adjustable pilot system.

The downstream pressure is maintained a constant, regardless of changes in upstream pressure and flow.

It is controlled by a normally open, pressure reducing pilot designed to: 1) Open (allowing fluid out of the main valve cover chamber) when downstream pressure is below the

adjustable set point, and 2) Close (allowing fluid to fill the main valve cover chamber) when downstream pressure is above the adjustable set point. A decrease in downstream pressure causes the valve to modulate toward an open position, raising  downstream pressure. An increase in downstream pressure causes the valve to modulate toward a closed position, lowering downstream pressure 

Working Principle : -When downstream pressure is lower than setting pressure, pilot M Opens automatically, the pressure contained in the by-passcircuit doesn’t apply any force on the membrane of main valve A. Thus the closing system is released and lifted. The valve throttlesto open position to increase downstream pressure to the desired level.When downstream pressure is higher than setting pressure, pilot M is closed automatically, the pressure contained in themembrane of main valve A. Thus the closing system drop down and the valve throttles to closed position to reduce downstreampressure to the desired level. Control and Maintain a preset pressure. This valve prevent over pumping of a pump if the system demand exceeds the pumping capacity.The upper reaches of the pressure range: 0.00-2.76 Bar, 1.72 – 8.62 bar, 6.89 – 17.23 Bar, 17.23 – 27.23 bar


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