A flow control valve is capable of changing the flow rate of the flowing fluid or gases according to the provided electric input. These valves form a closed-loop control system and because of this ability, they are widely used in various domestic and industrial applications. Proportional flow control valves installed in a system also provide safety features for reducing the risk of damage. For instance, if the power fails or the electric signal is interrupted, then the control fluid control valve will close swiftly to reduce the risk of damage.
What is Proportional Flow Valve?
A proportional valve is a tool that when installed in a fluid system helps to control the flow rate of the fluid or gases and keeps it equal to the desire of the user. In many domestic and industrial applications, it’s crucial to maintain a steady flow of fluid, air or gas for the precise operation of the fluid system or equipment.
How Does a Proportion Flow Vlave Work?
A proportional valve is a combination of hydraulic valve actuation and advanced electric control for the efficient controlling of the fluid flow. In a hydraulic system, it helps to reduce the components by providing accuracy and precision. Proportional flow control valves function to enhance the efficiency of various fluid systems and help in cutting down the operation cost by reducing the consumption of electricity.
The output of the electronic flow control valve can be of three types such as flow rate, pressure and direction. The output of these valves is directly proportional to the provided electric input signal. Meanwhile, it will expand or restrict the passage of the fluid according to the input that the user has provided electronically.
The coils of the valve surely work on the DC voltage and the amount of provided voltage can vary according to the type of the valve. It will create a varying force and this force will further shift the spool.
Proportional flow control valves operate when an electric signal is provided to them as an input. This signal is provided by an electronic device that can be a PLC, computer etc. The control device sends a signal to the driver card of the flow adjustment valve and further, it sends a signal to the valve. The acting force allows the spool to change its position and a flow path is created for the fluid to pass through it. Spool shifts according to the provided signal for providing the correct passage. Moreover, a transducer is used to keep a check on the movement of the spool.
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