Common problems and corresponding solutions of solenoid valves include the following aspects:

The coil is burned out: After the power is powered, the solenoid valve is not oil, the coil has abnormal appearance, and the built -in core rod has no electromagnetic suction power. This is usually due to the overload or voltage of the coil. The solution is to replace the electromagnetic coil and ensure that the power supply voltage is stable and meets the specifications of the solenoid valve.

Sound abnormality: After the electromagnetic valve is powered on, the work is normal but emits noise. This may be due to the loosening of foreign bodies or coil nuts at the pilot valve. The solution is to clean up foreign objects at the pilot valve and fasten the coil nut.

External leakage: The situation of external leaks of the solenoid valve is usually caused by the loosening of the screw or the damage of the valve parts. At this time, it should be checked and tightened screws. If necessary, replace the damaged valve.

Internal leakage: The solenoid valve cannot be turned off after the power is cut off, and there is still a flow of the oil gun. This may be due to the damage of the diaphragm or the valve parts with a foreign body that the main valve cannot be closed. The solution is to replace the damaged membrane and clean up the foreign objects in the valve.

Slow movement: The reaction of the solenoid valve after power is stunted and the requirements cannot be met. This may be a foreign body at the valve or the pilot valve, making it unable to move flexibly. At this time, the valve parts and the pilot valve should be cleaned to ensure that they can move freely.

Small valve effects or large valve flow: This may be caused by the closure of large and small traffic coils or the closure of the large valve pilot valve. The solution is to check and reconnect the coils to ensure that they are correctly connected; at the same time, check and adjust the large valve pilot valve to ensure that they are closely closed.

Sealing problem: When a leakage phenomenon of solenoid valves, you should first check whether the sealing parts are intact. If damage is found, replace it in time; second, check whether the installation of the solenoid valve is firm to avoid loosening and cause air leakage. Finally, you can adjust the solenoid valve by adjusting the solenoid valve. Work pressure to solve the problem of air leakage.

Frequent switches: Frequent switching of solenoid valves may cause shortening the life of the solenoid valve. At this time, the control system should be checked to ensure that there is no abnormal signal that causes frequency of the solenoid valve. At the same time, you can consider increasing the delay function and reducing the switching frequency of the solenoid valve.

It should be noted that the above is only part of the common problems and solutions of solenoid valves. In practical applications, more complex problems may be encountered. Therefore, when dealing with the failure of the solenoid valve, it is recommended to analyze and solve it according to the specific situation. If necessary, seek the help of professional and technical personnel. At the same time, regular maintenance and maintenance of the solenoid valve can effectively reduce the occurrence of faults and extend the service life of the solenoid valve.