118872A1 Solenoid Valve for Tractor 5120 5130 5140 5150 Solenoid Valve Assembly

Solenoid valve structure:

Solenoid valve includes (coil, magnet, ejector rod).

When the coil is connected to the current, it produces magnetism, and the magnet attracts each other, and the magnet will pull the ejector rod. Turn off the power, and the magnet and ejector rod are reset, so that the solenoid valve completes the work process. This is how the solenoid valve works.
Solenoid valves are generally used in hydraulic systems to close and open oil circuits.
In fact, according to the temperature and pressure of the flowing medium, such as the pipeline with pressure and the artesian state without pressure. The working principle of the solenoid valve is different.

For example, in the state of artesian flow, zero-voltage starting is required, that is, after the power is turned on, the coil sucks up the brake body.
The pressure solenoid valve is a pin inserted in the gate body after the coil is energized, and the pressure of the fluid itself is used to push the gate body up.
The difference between the two ways is that the solenoid valve of the flow state, because the coil has to suck up the whole gate body, so the volume is larger and the solenoid valve with pressure state only needs to suck up the pin, so the volume can be relatively small.