What are the symptoms of a broken solenoid valve, and what are the specific symptoms? It is actually very simple. No specialized testing tools are needed to determine whether the solenoid valve is broken. If you feel that the solenoid valve is broken, you can generally take three simple steps: listening, looking, and testing. Basically, the first two steps can determine the majority of the problems.

1： The performance of listening to sound

1. The action speed of the solenoid valve is the fastest among all valves, at the ms level. Under normal circumstances, when powered on, a "bang" sound will be heard immediately, crisp and sharp. If the coil is burned, there will definitely be no sound;

2. There is also a situation where there is a continuous "bang" or "bang" sound after being powered on, which is usually due to insufficient suction, insufficient voltage, or impurities in the valve chamber causing the valve core to get stuck;

3. After the AC solenoid valve is energized, there will also be a sound, but this continuous and stable current sound is normal;

4. If the solenoid valve acts, the sound of pipeline medium flow should be heard at this time;

Stainless steel solenoid valve

2： Look at external manifestations

1. Check if the coil has bulges or cracks,

2. Check if the wiring is damaged;

3. Is there any cracking in the valve body, especially some plastic or iron valve bodies that are prone to aging at low or high temperatures, which may cause this problem;

3： Test internal performance

1. If the coil is good, there will be a magnetic field outside the coil, just try using an iron nail to find out;

2. Touch the temperature of the coil. Except for high-temperature and low-temperature solenoid valves, the general solenoid valve feels warm about half an hour after being powered on. If it is cold, it can be determined that the wiring is open. If it is particularly hot (except for steam type high-temperature media), it can be determined that it is short circuited;

3. If the sound of water flow or airflow at the outlet of the pipeline can still be heard after closing, but it is clearly felt that the sound is loud when there is no valve open - what are the symptoms of the solenoid valve being broken - this is a very obvious one, which means that the valve is not tightly closed and there is a problem with the sealing position.

By following the above steps on site, it is easy to determine whether the solenoid valve is broken, whether there is a malfunction, and what are the typical symptoms of a broken solenoid valve. The above three methods can be used to easily determine. Electromagnetic valves belong to precision components and are widely used in all valve fields. Water, gas, and oil with low viscosity are very practical, but there are also many working conditions that are not suitable for using electromagnetic valves, such as mud, powder, grease, particles, and other media