Solenoid valve coil overheating and burning

This should happen because the limit switch in the thermal protection circuit is not opened in time, so that the circuit where the solenoid valve coil is located cannot automatically lose power after the solenoid valve is actuated. Solution:

1. Disassemble and repair the hydraulic check valve, re-grind the inner wall, and replace the aging parts to make it flexible.

2. Transform the solenoid start valve. The specific method is to cancel the internal spring. In this way, the valve core only relies on its own gravity to press the water outlet, but this gravity is not enough to completely suppress the outlet water, so an orifice is formed, so that the working water can enter at a certain pressure (about 0.015 MP a) Check valve: On the one hand, a certain water flow is formed in the check valve to avoid the corrosion of the inner wall and the spring. On the other hand, it also reduces the water pressure inside the solenoid valve and increases the use of sealing parts. life.

3. Choose high-quality, air-tight rubber pads, and take regular replacement of new rubber pads to avoid water in the housing where the coil is located.