Self-holding type solenoid valve is energized only moments to complete the switching valve

Self-holding type solenoid valve is energized only moments to complete the switching valve spool position without electricity to keep. It has the advantage of saving energy, especially the case of a battery powered, and may consider temperature, long life, and thus the coil, the high temperature, explosion-proof high security occasions.  electric transformer  maintenance and permanent magnet hold, was divided dual coil and single coil, single coil latching structure is the simplest. It is based on changing the polarity of DC  power transformers  the corresponding valve switch two states. The solenoid valve coil external wiring must be installed  circuit breakers  plus switch, supporting it with the smart meter is very convenient. IC card pre-charge gas and water meters are equipped with solenoid valves are key to the success of the instrument, in which the self-holding solenoid valve technology is an important factor in the success or failure.