PC200-6 Relief valve PC220-6 Excavator safety valve 708-2L-04720

Solenoid valve structure principle

       1, the external leakage is blocked, the internal leakage is easy to control, and the use is safe

Internal and external leakage is an element that endangers safety. Other automatic control valves usually extend the stem, and the rotation or movement of the spool is controlled by an electric, pneumatic, and hydraulic actuator. It is necessary to solve the external leakage problem of long-term action valve stem dynamic seal; Only the solenoid valve is the completion of the iron core sealed in the magnetic insulation tube of the electric control valve, and there is no dynamic seal, so the external leakage is easy to block. Electric valve torque control is not easy, easy to produce internal leakage, and even pull the stem head; 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 for corrosive, toxic or high and low temperature media.

       2, the system is simple, then the computer

The solenoid valve itself has a simple structure and low price, and is easier to install and maintain than other kinds 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. Because the solenoid valve is a switch signal control, it is very convenient to connect with the industrial control computer. In today's era of computer popularity and sharply reduced prices, the advantages of solenoid valves are more obvious.