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Fault and elimination method of solenoid valve

The malfunction of the solenoid valve and the elimination method: the malfunction of the solenoid valve will directly affect the action of the switch valve and the regulating valve, and the common malfunction is the solenoid valve, which should be checked from the following aspects:
1, solenoid valve wiring head loose or thread off, solenoid valve can not be electricity, can fasten the thread.
2, the solenoid valve coil burned, the wiring of the solenoid valve can be removed and measured with multimeter. If the circuit is opened, the solenoid valve coil is burnt out. The reason is that the coil is dampened, resulting in poor insulation and magnetic leakage, resulting in excessive current in the coil and burning. Therefore, it is necessary to prevent rain from entering the solenoid valve. In addition, the spring is excellent, the reaction force is too large, the number of turns of the coil is too small, and the suction is not enough to make the coil burn down.
3. The solenoid valve is stuck. Solenoid valve for fluid cleanliness requirements are higher, impurities seal the seal will be electromagnetic valve closes lax. Therefore, at the inlet end of the solenoid valve, it is best to install filters with filtering accuracy greater than or equal to 80.
4. Air leakage. Leakage can cause insufficient air pressure, which makes the opening and closing of the forced valve difficult. The reason is that the gasket is damaged or the spool valve is worn, causing the upper and lower valve cavities to run through the air.
When dealing with the malfunction of the solenoid valve in the switching system, the appropriate time should be chosen to deal with the solenoid valve when the power is lost, and the switching system can be suspended and the high voltage solenoid valve can be treated in a leisurely manner if the treatment is not finished in a switching gap.

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