In this post, we will learn the difference between the solenoid valve and the motorized valve.
Valve is a very important element used in almost every industrial process. It can be simply defined as a gate in the process. When you have to pass any media (liquid, gas, or vapor) from an inlet position to an outlet position, a valve is required in between to control the flow of the media.
The valve will act as a gate that will regulate the flow of media to the outlet. It determines whether to pass or not the fluid or determines only a certain percentage of fluid to pass.
The two most commonly used types of valves are – solenoid valve and motorized valve.
The solenoid valve works on the principle of electromagnetism. It consists of a wire coil that works like an electromagnet. This coil controls the movement of a mechanical plunger, which ultimately controls the flow of fluid passing through it.
Now, you must be knowing that when an electric current is passed through a magnetic coil, a strong electromagnetic field is generated. The same theory works with this valve.
When the coil is energized by an external supply voltage, as it is magnetized, an electromagnetic field is generated. This field attracts or repels the movement of the plunger, as it is very strong.
When energized, the plunger opens the blockage of the fluid and allows the fluid to pass. When the coil is de-energized, the plunger again closes the opening due to force removal and blocks the passage of fluid. In this way, it can be termed as a digital output for PLC – either on or off.
As the name implies, the motorized valve works on the principle of motor movement. An electric motor is mounted on the valve and geared to the valve stem so that when the motor operates the valve will open or close.
As a motor is used, it is too operated by an electrical supply. The motor operation is very slow and controlled. When you turn on the motor valve by an external voltage supply, it opens the throttle in a ramped-up slow way.
When you turn off the motor valve, it closes the throttle in a ramped-down slow way. This allows the passage of fluid properly. This motorized valve can be analog or digital PLC output.
Some of the main points and differences between the solenoid valve and the motorized valve are mentioned below.
In this way, we understand the difference between a solenoid valve and a motorized valve.
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