On the installation method of high current of solenoid valve

For large current solenoid valve, how to calculate the correct installation method, installation attention. Solenoid valve is electromagnetic controlled industrial equipment, used in industrial control system to adjust the direction, flow, speed and other parameters of the medium. When the solenoid valve is applied in the pneumatic system, the raw material belt (i.e. sealing belt) is generally used for winding when it is connected with the pneumatic components. It is also wound to complete the sealing function. But you experienced friends will definitely encounter such a phenomenon: it is clearly a new component, how to test machine is always leaking. One of the big reasons and the most common reason is that some of the raw material belt ran into the gas path without following the correct method when winding the raw material belt. This requires attention to a positive and negative sequence when winding the raw material belt. Please test and experience this by yourself.

There is a closed cavity in the solenoid valve. There are through holes in different positions. Each hole leads to different oil pipes. In the middle of the cavity is a valve, and two electromagnets are on both sides. The valve body will be attracted to which side when the magnet coil is energized. Different oil drain holes will be blocked or leaked by controlling the movement of the valve body. The oil inlet hole is normally open, and the hydraulic oil will enter different oil drain pipes, and then pass through The oil pressure pushes the piston of the oil cylinder, the piston drives the piston rod, and the piston rod drives the mechanical device. In this way, the mechanical movement is controlled by controlling the on-off current of the electromagnet.

For the solenoid valve with large current, a relay shall be installed at the front end. Especially for the solenoid valve in the oil pressure system, because of the large current, if no relay is installed, the service life of the solenoid valve will be very short.