Technological development of the solenoid valve

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Solenoid valve as an actuator for automated instrumentation in recent years, the amount is rising sharply. This paper analyzes the main features of the solenoid valve, and application-oriented point of view for a brief overview of the developments of the mature technology, streamline, intelligent, universal, were made by the special direction of inspection, and slightly affect the solenoid valve technology the social dimension of development points. (1) leakage of the block must drain easily controlled, safe to use. Inside and outside the leaks endanger the safety factor. Other automatic control valve will usually stem extends from the electric, pneumatic, hydraulic actuator control spool to rotate or move. This is all to solve the long-term actions stem outside the dynamic seal leakage problem; only the solenoid valve is used to seal the casing separated from the magnetic core to complete electromagnetic masterpiece, there is no dynamic seal leakage so easy to block absolutely. Electric control valve torque is not easy and prone to leakage, and even pulled off the stem head; the structural type of the solenoid valve is easy to control leakage, until reduced to zero. Therefore, the solenoid valve to the use of special security, especially for corrosive, toxic or high and low temperature media. (2) The system is simple, they take the computer, the price is low and modest. Solenoid valve structure is simple, low price, easy installation and maintenance compared to other types of control valves and other actuators. More significant is the automatic control system is much simpler and a much lower price. As the solenoid valve switching signal control and industrial computer connection is very convenient. Popular in today s computer prices an era of declining, the solenoid valve is even more obvious advantages. (3) action express, power tiny, lightweight shape. Solenoid valve response time can be as short as a few milliseconds, even if the pilot solenoid valve can be controlled within tens of milliseconds. Forming the circuit, and more responsive than the other automatic control valve. Properly designed solenoid valve coil power consumption is very low, the case of energy-saving products; can also be done simply trigger movement, and automatically maintain single coil solenoid valve  position, and usually is not power consumption. flange solenoid valve  small size, saving space and lightweight appearance.