How to Solve Different Faults of a 2-Way 2-Position Solenoid Valve?

As a common solenoid valve, the 2-way 2-position solenoid valve is used in many factories; on the other hand, many problems will also appear when factories use it, and these are things that factories need to understand and pay attention to.

1. The solenoid valve does not work after being energized

Check whether the power wiring is poor — reconnect the wiring and the connector; check whether the power supply voltage of the pneumatic 2-way 2-position solenoid valve is within the working range — adjust it to the normal range; whether the coil is desoldered — resolder; 4. Coil short circuit — replace the coil; whether the working pressure difference is inappropriate — adjust the pressure difference or replace with a matching solenoid valve; 6. Liquid temperature too high — replace the solenoid valve with the corresponding Cv; impurities causing the main valve core and the movable iron core of the solenoid valve to jam — clean, and if the seal is damaged, replace the seal and install a filter; 8. Liquid viscosity too high, frequency too high, or the life has expired — replace the product.

2. The solenoid valve cannot be closed

The seal of the main valve core or the movable iron core of the water-use 2-way 2-position solenoid valve is damaged — replace the seal; 2. Whether the liquid temperature or viscosity is too high — replace with a matching solenoid valve; 3. Impurities entering the valve core or movable iron core of the solenoid valve — clean; the torsion spring's life has expired or it is deformed — replace; the throttle hole or balance hole is blocked — clean it in time; the output power is too high or the life has expired — reselect the product or upgrade the product.

3. Other situations

Internal leakage — check whether the seal is damaged and whether the spring is improperly installed; external leakage of the high-pressure 2-way 2-position solenoid valve — the joint is loose or the seal is damaged — tighten the screw or replace the seal; noise when energized — a fastener on the head is loose, tighten it. If the voltage fluctuation is not within the allowable range, adjust the voltage. If the iron core's attracting surface has impurities or is uneven, clean or replace it in time.