Working principle of tap water solenoid valve, installation method of tap water solenoid valve

Tap water solenoid valve How it works

The solenoid valve changes manual control to electromagnetic control, that is, it is a valve controlled by an electromagnet. Solenoid valvesThere are many types, with different specific functions, but the principles are similar. , see the picture below, this is the simplest solenoid valve.

When energized, the iron core becomes magnetic. The moving iron core and the fixed iron core attract each other. The moving iron core is attracted to the moving iron core, driving the valve core to open the pipe. , and compress the spring at the same time;when the power is turned off, the iron cores lose their magnetism and no longer attract each other. The spring pushes the moving iron core away, driving the valve core to close the pipeline.

In fact, the same effect can be achieved by not energizing the coil, but by pressing the moving iron core with your hands. Of course, electromagnetic control realizes automation, which is a bit more advanced.

Solenoid valve is like a relay in an electrical control system. It is an essential control component in hydraulic and pneumatic systems. It is mainly composed of a valve block, a valve stem, a compression spring, a coil and other parts.

After the solenoid valve is energized, it uses the electromagnetic force generated by the energized coil to overcome the spring force formed when the compression spring set on the valve stem is compressed, and pushes the valve stem to move to the corresponding position from its initial position in the valve block cavity. The position valve stem closes or opens the relevant orifice in the cavity (connected to the external pipeline) to change the path of the liquid or gas passing through the solenoid valve or close or open the path, thereby changing the operating status of the controlled component (such as speed, direction, running, stopping and pressure level, etc.).

After the coil loses power, the valve stem that has lost the electromagnetic force will move to the initial position under the action of the spring force of the compression spring, restoring the original state of liquid or gas flow.

Installation method of tap water solenoid valve

1. The solenoid valve is generally installed with the valve body horizontal and the coil vertically upward. Some products can be installed arbitrarily. , but when conditions permit, it is best to vertically extend the service life.

2. The solenoid valve cannot be installed backwards. The arrow is the direction of movement of the fluid in the pipeline and must be consistent;

3. Please read the product's instruction manual carefully before installation;

4. The pipeline should be flushed before use, and a filter should be installed if the medium is not clean to prevent impurities from hindering the normal operation of the solenoid valve;

5. The solenoid valve should be heated or heat preservation measures should be taken when it is re-operated in an icy place;

6. After the electromagnetic coil lead wire or connector is connected, confirm whether Be firm, and the contacts of the connected electrical components should not shake. Looseness will cause the solenoid valve to not work;

7. Continuous production workSolenoid valve, it is best to use bypass measures to facilitate maintenance and not affect Production;

8. After long-term inactivity The solenoid valve should be drained of condensation. When disassembling and cleaning, all parts should be put in order and then reassembled.

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