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Solenoid Valve Fault and Troubleshooting

Oct. 21, 2020

1. The Solenoid Valve does not work after being energized

Check whether the power wiring is bad → rewire and connect the connector

Check whether the power supply voltage is within the ± working range-→ adjust to the normal position range

Whether the coil is unsoldered → re-soldered

Coil short circuit → replace the coil

Whether the working pressure difference is not suitable→Adjust the pressure difference→or replace the Explosion Proof Series Solenoid Valve

The fluid temperature is too high → replace the appropriate solenoid valve

Impurities cause the main valve core and moving iron core of the solenoid valve to jam → clean, if the seal is damaged, replace the seal and install the filter

The viscosity of the liquid is too high, the frequency is too high, and the life is reached → replace the product

 Solenoid Valve

 Solenoid Valve

2. The solenoid valve cannot be closed

The seal of the main spool or iron core is damaged → replace the seal

Whether the fluid temperature and viscosity are too high → replace the solenoid valve of the corresponding port

Impurities enter the solenoid valve core or moving iron core → clean

Spring life has reached or deformed → replace

Orifice balance hole blocked → timely cleaning

The working frequency is too high or the service life is up → change the product or update the product

3.other circumstances

Internal leakage → check whether the seal is damaged, whether the spring is poorly assembled

External leakage → loose connection or damaged seal → tighten the screw or replace the seal

There is noise when energized → The solid parts on the head are loose, tighten them. If the voltage fluctuation is not within the allowable range, adjust the voltage. If the suction surface of the iron core is impurity or uneven, clean or replace in time.

If you have more questions, please contact the Solenoid Valves Manufacturers

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