Solenoid valve is an automatic basic component used to control the direction of the fluid and belongs to the actuator; it is usually used on mechanical control and industrial valves to control the direction of the medium to achieve the control of valve switching. The working principle is that there is a closed cavity in the solenoid valve, and there are holes in different positions. Each hole leads to a different oil pipe. The middle of the cavity is a valve. Two sides are two electromagnets. Which side will it be attracted to, by controlling the movement of the valve body to block or leak different oil discharge holes, and the oil inlet is always open, the hydraulic oil will enter different oil discharge pipes, and then pushed by the oil pressure The piston of the oil cylinder, the piston drives the piston rod, and the piston rod drives the mechanical device.
This kind of valve uses a one-time valve and a two-time valve to be connected together. The main valve and pilot valve make the electromagnetic force and pressure difference directly open the main valve port. When the coil is energized, an electromagnetic force is generated to attract the moving iron core and the static iron core. The pilot valve port is opened and the pilot valve port is set on the main valve port, and the moving iron core is connected to the main valve core. The pressure in the cavity is unloaded through the pilot valve port, and the main valve core is moved upward under the simultaneous action of pressure difference and electromagnetic force, and the main valve medium is opened to flow. When the coil is de-energized, the electromagnetic force disappears. At this time, the moving iron core closes the pilot valve hole under the effect of its own weight and spring force. At this time, the medium enters the upper cavity of the main valve core in the balance hole, and the upper cavity pressure increases. Under the action of spring return and pressure, the main valve is closed, and the medium is cut off. The structure is reasonable, the action is reliable, and the work is reliable at zero pressure difference. Our company provides high-quality Water Treatment Solenoid Valve.
The solenoid valve itself has a simple structure and a low price and is easier to install and maintain than other types of actuators such as regulating valves. What is more remarkable is that the automatic control system is much simpler and the price is much lower. Since the solenoid valve is controlled by a switch signal, it is very convenient to connect with an industrial computer. In today's era where computers are popular and prices have fallen sharply, its advantages are even more obvious.
The above information is provided by Irrigation Valve Manufacturer.