The Electromagnetic valve is an automated basic component used to control fluids. It belongs to the actuator and is not limited to hydraulic or pneumatic. Used in industrial control systems to adjust the direction, flow, speed, and other parameters of the medium. Solenoid valve with different circuits to achieve the desired control, and control accuracy and flexibility can be guaranteed. There are many kinds of electromagnetic valve, different electromagnetic valve in the control system at different locations to play a role, the most commonly used are one-way valve, safety valve, directional control valve, speed control valve. Solenoid valve in a closed chamber, in different locations to open a hole, each hole connecting different pipe, cavity intermediate piston, both sides are two electromagnets, which face the magnet coils body will be attracted to which side, to open or close the oil drain hole through different control valve moves, and the oil inlet hole Shichang opened, hydraulic oil will enter the drain pipes of different, then the oil pressure to push the piston cylinder, piston and piston rod, the piston rod drives the mechanical device. Thus, the mechanical movement is controlled by controlling the current of the electromagnet.
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