High-voltage solenoid valve fault detection and maintenance instructions

Common accumulation faults of high-pressure solenoid valve products include: solenoid valve is not energized, solenoid valve coil is damaged, solenoid valve is stuck, and solenoid valve leaks. In this paper, the causes and treatment methods of high-voltage solenoid valves are summarized as follows:

Common fault of high pressure solenoid valve 1: high pressure solenoid valve leak

Leakage can cause insufficient air pressure, making it difficult to open and close the forced valve due to damage to the gasket or wear of the spool to cause several cavity helium. The high-pressure solenoid valve needs to be stopped during the troubleshooting, and then a new gasket is replaced. High-pressure solenoid valve products may be due to changes in the working environment, such as environmental operating temperature, environmental pressure, and properties of the media. As a result, the high-voltage solenoid valve products are not working properly. When users use high-pressure solenoid valve products, please pay attention to observe whether the working conditions of these products have changed.

Common fault of high pressure solenoid valve 2: high voltage solenoid valve coil burned out

The way to detect is to use a multimeter to measure, if it is open circuit, it means that the solenoid valve coil is burnt out. This is generally due to the magnetic flux leakage caused by the high voltage solenoid valve coil, which causes the current in the solenoid valve coil to burn out the coil too much.

High-voltage solenoid valve common fault three: high-voltage solenoid valve is not powered

This is usually caused by the loose or loose wire of the solenoid valve. Just check the wire end and fasten it.

The reason is that the coil is damp, causing poor insulation and magnetic leakage, causing the current in the coil to be too large and burning, so it is necessary to prevent rainwater from entering the solenoid valve. In addition, 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 insufficient to cause the coil to burn. For emergency handling, the manual button on the coil can be turned from the “0” position to the “1” position during normal operation, causing the valve to open.

High pressure solenoid valve common fault four: high pressure solenoid valve stuck

The treatment method can use the steel wire to break in from the small hole of the head to make it bounce back. The fundamental solution is to remove the solenoid valve, take out the valve core and the valve core sleeve, and clean it with CCI4, so that the valve core can move flexibly in the valve sleeve. When disassembling, pay attention to the assembly sequence and external wiring position of each component, so as to reassemble and wire correctly, and check whether the oil mist injection hole is blocked and the lubricating oil is sufficient. If the high-pressure solenoid valve product is working, there are too many impurities in the medium, which may cause the high-pressure solenoid valve to become stuck.

High pressure solenoid valve common fault five: high pressure solenoid valve line loose

The solenoid valve terminal is loose or the wire ends are off. The solenoid valve is not energized and the wire ends can be tightened.

When dealing with the failure of the high-voltage solenoid valve of the switching system, the appropriate timing should be selected, and the high-pressure solenoid valve should be processed when the power is lost. If the processing is not completed within one switching gap, the switching system can be suspended and taken care of.