Advantages of using solenoid valves in hydraulic systems

Solenoid valve, as an actuator of automation instrument, has seen a sharp rise in usage in recent years. And it has been widely used in the hydraulic system, its main advantages are:

（1）Various models, wide range of uses. It can be designed into a variety of products to meet various needs and has a wide range of uses.

（2）The power is small, the shape is light and handy, and the action is fast. The response time of the solenoid valve can be as short as several milliseconds, and even the pilot solenoid valve can be controlled within tens of milliseconds. Due to its self-contained circuit, it is more sensitive than other automatic control valves. The power consumption of a properly designed solenoid valve coil is very low, which is an energy-saving product; it can also be achieved by triggering the action and automatically maintaining the valve position without consuming any power at ordinary times. The shape and size of the solenoid valve are small, which not only saves space, but also is light and beautiful.

（3）In addition to being safe to use, no leaks can be blocked, and internal leaks are easy to control. Internal and external leakage is an element that endangers safety. Other automatic control valves usually extend the valve stem, and the rotation or movement of the spool is controlled by electric, pneumatic, or hydraulic actuators. All these have to solve the problem of external leakage of the dynamic seal of the long-term action valve stem; only the solenoid valve is completed by using electromagnetic force to act on the iron core sealed in the magnetic isolation sleeve, and there is no dynamic seal, so the external leakage is easy to be blocked. The torque control of the electric valve is not easy, and it is easy to cause internal leakage, and even break the head of the valve stem; the structure of the solenoid valve is easy to control the internal leakage until it is reduced to zero. Therefore, the solenoid valve is particularly safe to use, especially suitable for corrosive, toxic or high and low temperature media.

（4）The system is simple, easy to connect to the computer, and the price is low. The solenoid valve itself has a simple structure and low price, and is easier to install and maintain than other types of actuators such as regulating valves. What's more remarkable is that the composed automatic control system is much simpler and the price is much lower. Since the solenoid valve is controlled by the switch signal, it is very convenient to connect with the industrial control computer.