The Functions of Flow Control Valve

flow control valve

What are the basic functions of a flow control valve and their application?

Flow control valves regulate the pressure or flow of fluid. They are designed to fit for complex pneumatic and hydraulic systems. The control valves respond to signals generated by devices like temperature gauges or flow meters. The valves have simple tool orifices with a complex set of electro-hydraulic valves to adjust in the different variations in pressure and system temperature. The throttled position of the main valve senses pressure across an orifice plate.

To reduce the actual flow rate in a specific area of a pneumatic circuit, the control valve fittings are used. This helps reduce the speed of the actuator while the needle valves control the flow in two directions. The flow control valves fitting is used to direct the system into only one direction allowing the flow of gas or liquid in the opposite direction.

Here are the functions of a flow control valve:

Clog no more

The flow control valves do not obstruct the fluid flow. The perfect design of the valves do not allow the dust, deposits, and small particles to clog the flow of fluid.

Ecologically friendly

Many industries today face the pressure of maintaining the global and ecological standards. These valves can become ecologically friendly by decreasing the wastes of natural resources and making good use of them.

Saves money and water

Flow control valves are useful in faucets, helps a lot in conservation. It helps save money on spending too much on water bills and wasting resources. The faucets can conserve up to 85% of the water used. This means not only low water bills to pay but also low demand in water supply during dry seasons.

Reduce working pressure

It allows the operator to depressurise the solution hose quickly. To release the back pressure, just turn it off and open the flow control valves. Then, change into our chosen tool.

Reliability and performance

These valves are used in various applications like food processing machines, conveyors, and material handling equipment.

Stem guiding

The simple design allows to support and control the plug. The limitations are due to the strength of the stem as the support is farther from the cap.. while the guiding performance is impaired, but this type of valve is cheaper to maintain and manufacture.

Post guiding

The next function is when there is a risk of fouling. The post is the part of the stem from the plug that extends to the valve body. It is smaller in diameter but significantly more than the stem.

The flow control valve is important for the system performance that relies on a port or a flow passage with a variable flow area. In hydraulics, it is used to regulate the speed of the components to control motors’ and cylinders’ flow rate. Its very location is critical to optimised system performance. The rate of flow varies due to downstream demand or changing of line pressures. When this happens, the pilot compensates by repositioning and changes the throttled position to maintain the flow rate desired.

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