The fault of the solenoid valve will directly affect the action of the switching valve and the regulating valve. The common fault is that the solenoid valve does not operate, which should be checked from the following introduction. Follow the editor of china Vacuum magnetic valve factory for a simple understanding!
1. The solenoid valve terminal is loose or the thread is off, the solenoid valve must not be energized, and the thread can be tightened.
2. The solenoid valve coil is burnt out. You can remove the solenoid valve's wiring and measure with a multimeter. If it is open, the solenoid valve coil will burn out. The reason is that the coil is damp, causing poor insulation and magnetic leakage, causing excessive current in the coil and burning. Therefore, it is necessary to prevent rainwater from entering the solenoid valve. In addition, if the spring is too hard, the reaction force is too large, the number of turns of the coil is too small, and the suction force is not enough, which can also cause the coil to burn out. For emergency treatment, the manual button on the coil can be turned from the "0" position to the "1" position during normal operation to open the valve.
3. Air leakage: Air leakage will cause insufficient air pressure, which makes it difficult to open and close the forced valve. The reason is that the sealing gasket is damaged or the slide valve is worn, which causes blow-by in several cavities. When dealing with the solenoid valve failure of the switching system, the appropriate time should be selected, and the solenoid valve should be processed when the solenoid valve is de-energized. If the processing cannot be completed within a switching gap, the switching system can be suspended and handled calmly.
In summary, the editor of china Vacuum magnetic valve factory tells: a brief introduction to the common faults of solenoid valves.