What is the diverting system of the liquid dispenser?

The diverting system of liquid dispensers on the market mainly relies on solenoid valves, which are mainly divided into direct-acting, distributed direct-acting and pilot-operated solenoid valves. Now let’s talk to you about what is the most appropriate shunt system for the liquid dispenser.
First of all, the working principle of the direct-acting solenoid valve is mainly to use the electromagnetic force generated after the electromagnetic coil is energized to open the valve, and the current breaks the valve in time to close. Because this solenoid valve does not have a pilot diaphragm, it does not use water pressure to stop the flow, so it is suitable for the diverting system of the liquid dispenser.
Then there is the step direct acting solenoid valve. Its working principle is: the direct acting and pilot type work together, when the step direct acting solenoid valve inlet and outlet pressure difference is equal, after the power on the current in the valve will be opened. When there is a pressure difference between the inlet and the outlet and the pressure difference reaches the starting value, the valve will be closed without current after power failure. Because the electromagnetic valve body volume is large and the flow rate is relatively large, it is not suitable for use as a liquid dispenser shunt.
The last is about pilot operated solenoid valves. The working principle of the pilot solenoid valve is: when energized, the internal pressure difference is formed so that the pressure difference and fluid pressure are combined to push the valve open; When the power is off, the valve is also closed by pushing down the pressure difference and the fluid pressure. This working principle is easy to fail in the process of use, so it is not suitable for the shunt system of the liquid dispenser.