When the diesel engine is turned off, there is a coil in the solenoid valve that is the same as the generator. When the power is turned on, the magnetic force is generated to pull the stop switch back to the fuel. When the power is turned off, there is no magnetic force. It’s oily. After the flameout solenoid valve is used for a long time, the piston is easily blocked by dust and mud and cannot move, and then it cannot start or flameout.

Attention to solenoid valve installation:

1. When installing, pay attention that the arrow on the valve body should be consistent with the flow direction of the medium. Do not install in a place where there is direct dripping or splashing water. The solenoid valve should be installed vertically upwards;

2. The solenoid valve should be guaranteed to work normally within the 15%-10% fluctuation range of the rated voltage of the power supply voltage;

3. After the solenoid valve is installed, there must be no reverse pressure difference in the pipeline. And it needs to be energized several times to make it suitable for temperature before it can be put into use;

4. The pipeline should be thoroughly cleaned before installation of the solenoid valve. The medium should be free of impurities. Install a filter before the valve;

5. When the solenoid valve fails or is cleaned, to ensure the system continues to run, a bypass device should be installed.