The upper hole is 8mm, the lower hole is 12mm, and the height is 38mm 220V coil

 Solenoid valve coil as the core component of solenoid valve, its structure is exquisite and the function is key. Coils are usually tightly wound with insulated wires that are encased in high-temperature, corrosion-resistant insulation to ensure stable operation in high-intensity electromagnetic fields. When the current passes through the coil, according to the principle of electromagnetic induction, a strong magnetic field is generated around the coil, and this magnetic field interacts with the ferromagnetic material inside the solenoid valve to drive the valve to open or close. This fast response and precise control ability of solenoid valve coil makes it widely used in industrial automation, hydraulic system, gas control and household appliances, and becomes an important component to realize fluid control automation.

Although the solenoid coil is a durable part, it also needs regular maintenance and troubleshooting during long-term operation. Periodically check the appearance of the coil to ensure that there is no damage, deformation, or overheating. At the same time, keep the coil and the surrounding environment clean and dry to avoid impurities such as dust and water vapor affecting its performance. If the solenoid valve is not sensitive, the noise increases or the complete failure, you should first check whether the coil power supply is normal, including whether the voltage and current are stable, whether the wiring is loose or short circuit. If the power supply is normal, check whether the coil is short circuit, open, or aging, and replace the coil with a new one if necessary. Through scientific and reasonable maintenance and timely troubleshooting, the service life of the solenoid valve coil can be effectively extended to ensure the normal operation of the equipment.