Excavator accessories Engine hydraulic pump solenoid valve 4216197 Mechanical engineering accessories

           The solenoid valve comprises a coil, a magnet and an 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. 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, such as the need for zero pressure start in the state of artesian flow,

that is, after the power is powered 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.