Operation Principleof Flow Control Valve

- Nov 13, 2018-

Pressure-compensated flow controls must be used when accurate speed control at varying supply or load pressures is required. The minimum regulated stable flow from a good-quality flow-control valve will be in the region of 0.1 l/min. In any precision flow-control valve application it is essential to have well-filtered fluid (better than 10 μm absolute) to promote efficient control and long life of the valve. The smaller the flow to be controlled, the finer the filtration necessary. Various types of valve adjusting mechanism are available - hand knob, lockable hand knob, lever, DC motor control etc. It must be remembered that whenever a flow-control valve is used in a system, there will always be some pressure drop and associated heat generation