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
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