Cause analysis of burnout of enameled wire of solenoid valve coil and installation form of solenoid valve

Too high coil temperature may be caused by the following reasons:

1: The actual voltage fluctuation is too large, exceeding the rated voltage range. The general voltage deviation of domestic enameled wire is 5%, and that of good manufacturers can reach 10%.

2: There may be impurities in the medium circulating in your solenoid valve. If it gets stuck, the force of the solenoid coil cannot open the solenoid valve, which causes the solenoid coil to work all the time. If the coil is electrified for a long time, the temperature will rise, and finally the coil will burn.

3: The starting power of the coil is not enough, which causes the solenoid valve to always fail to open, the coil is heated for a long time, the temperature rises, and finally the coil burns.

4: Your PTC thermistor is broken, so the solenoid valve cannot be controlled normally.

Why do solenoid valves have to be installed horizontally? Can it be installed vertically?

The solenoid valve is generally installed with horizontal valve body and vertical coil upward. Some products can be installed at will, but it is better to be vertical when conditions permit, so as to increase service life.

Solenoid valves are mostly used for on and off in fluid environment, so they are directional and cannot be installed reversely.

In general design, the solenoid valve should be installed horizontally, which is mainly considered from the service life. In the pneumatic environment, such a design can also reduce the role of impurity blocking; in the liquid environment, because the current is relatively large, the solenoid valve installed vertically or obliquely is easy to be obstructed by impurities and thus affect its normal operation. In addition, the sticking (attachment) of impurities and the gravity of ferromagnet itself are easy to affect the use of the solenoid valve.

In the hydraulic system, because of the large current, in order to extend the life of the solenoid valve, it is usually necessary to add a relay.