There are sealed cavities in the 1089064064 solenoid valve, and through holes are opened at different positions. Each hole is connected with different oil pipes. The middle of the cavity is a piston, and there are two electromagnets on both sides. The solenoid coil on which side is attracted to which side. By controlling the movement of the valve body, different oil drain holes can be opened or closed, while the oil inlet hole is normally open, and the hydraulic oil will enter different oil drain pipes, and then push the piston of the oil cylinder through the oil pressure, The piston drives the piston rod, which drives the mechanical device. In this way, the mechanical movement is controlled by controlling the current on and off of the electromagnet.
Solenoid valves are divided into three categories in principle:
1. Direct acting solenoid valve
Features: it can work normally under vacuum, negative pressure and zero pressure, but the drift diameter is generally not more than 25mm.
Distributed direct acting
2. Pilot operated solenoid valve
Features: it can also operate at zero differential pressure or vacuum and high altitude, but the power is large, so it must be installed horizontally.
3. Pilot operated solenoid valve
Features: the upper limit of fluid pressure range is high, which can be installed arbitrarily (customized), but must meet the conditions of fluid pressure difference.
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