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Common faults of solenoid valve

- Sep 03, 2018 -

1, solenoid valve terminal loose or head off, solenoid valve is not electric, can tighten the thread. 2, solenoid valve coil burned, can remove the wiring of the solenoid valve, measured with a multimeter, if open, the solenoid valve coil burned. Cause the wired coil damp, cause insulation bad and leakage of magnetic, causing the coil current is too large and burned, so to prevent rain into the solenoid valve. In addition, the spring is excellent, the reaction force is too large, the number of coils is too small, not enough suction can make the coil burned.

For emergency handling, the manual button on the coil can be hit "1" by the "0" position at the time of normal operation, allowing the valve to open. 3, solenoid valve stuck: solenoid valve sliding valve sleeve with the valve core gap is very small (less than 0.008mm), is generally a single piece assembly, when there is mechanical impurities brought into or too little lubricant, it is easy to get stuck. The processing method can be used to poke the wire from the hole in the head so that it bounces back. The fundamental solution is to remove the solenoid valve, remove the valve core and valve core cover, with CCI4 cleaning, so that the valve core in the valve sleeve movement flexibility.

Disassembly should pay attention to the assembly sequence of the components and the external wiring position, in order to re-assemble and wiring correctly, but also to check whether the oil spray hole is blocked, the lubricant is sufficient. 4, gas leakage: air leakage will cause the pressure is insufficient, making the opening and closing of the forced valve difficult, because the sealing gasket damaged or sliding valve wear and caused a few cavities channeling gas. In the handling of the switching system solenoid valve fault, should choose the appropriate timing, and so on when the solenoid valve in the loss of power processing, if in a switching gap within the processing, the switching system can be suspended, calmly processing.


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