Direct Operated Downstream Pressure Regulating Valves Working Principle


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Downstream Pressure regulating valves are self contained, Self Operated control devices, which use energy from the controlled system to operate and regulate pressures. Valve Solutions manufactures a variety of pressure reducing regulators to manage downstream system pressures in low, medium, high flow applications, model features a diaphragm type, piston type or combination of both to suit different applications

A pressure reducing regulator maintains a desired reduced outlet pressure while providing the required fluid flow to satisfy a variable downstream demand. The valve at which the reduced pressure is maintained is the outlet pressure setting of the regulator.

Direct Operated Downstream Pressure Regulating Valves Working Principle

In operation, a direct operated, pressure reducing regulator senses the downstream pressure through either internal pressure registration or an external control line. This downstream pressure opposes a spring which moves the diaphragm and valve plug to change the size of the flow path through the regulator.

Characteristically direct operator regulators are adequate for narrow-range control, and where the allowable change in output pressure can be 10 to 20% of the outlet pressure setting. This 10 to 20% is typical although finer control can be achieved depending on the specific application requirement.

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Reference : Valve Solutions