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  • Solenoid valve main three categories
    Solenoid valve main three categories
    Direct-acting solenoid valve: Principle: when electrified, the solenoid coil produces solenoid force to lift the shut-off piece from the valve seat, the valve opens; when the power is cut off, the solenoid force disappears, the spring presses the shut-off piece on the valve seat, and the valve close
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