What are the control methods of electromagnetic directional valve?

The electromagnetic directional valve can be operated and controlled in different ways to change the relative position between the valve core and the inner hole of the valve body, so as to realize commutation (change the working position). The common control modes of hydraulic directional valve in Tian Li are electromagnetic control, hydraulic control, electro-hydraulic compound control, manual control, motor control and pneumatic control. At present, in the application of hydraulic system, moving valve core often adopts mechanical, electrical, hydraulic, pneumatic or manual methods according to needs. A directional valve that moves the spool through manual operation is called a manual valve, and a directional valve that moves the spool through a cam pressing pin connected to an actuator is called an electric directional valve or a mechanical directional valve. In addition, there are electromagnetic directional valves that use the attraction of electromagnets to push the valve core, and hydraulic directional valves that rely on pressure oil to move the valve core. The control mode of electro-hydraulic directional valve can be regarded as the combination of electromagnetic directional valve and hydraulic directional valve. The flow direction of pressure oil is controlled by electromagnetic control of electromagnetic pilot directional valve, and then the valve core of hydraulic valve is pushed by pressure oil. In practical application, the control mode of reversing valve can be flexibly selected according to the actual situation. The electromagnetic directional valve is easy to realize automatic control, and the manual directional valve is more flexible, and the reversing time can be adjusted at any time as needed. Compared with the electromagnetic reversing valve, the reversing impact of manual reversing valve is relatively small. The mechanical directional valve can respond to the movement of the object, and the electro-hydraulic directional valve can realize a larger flow than the electromagnetic directional valve. But correspondingly, each control mode also has its own shortcomings, which should be fully considered in the design. For example, when the spool of electromagnetic directional valve is blocked, the coil is easy to burn, and manual directional valve needs to consider the convenience of operation and the control of installation position, and so on. Wuxi tuosen automation technology co., ltd. has obvious advantages in direct supply price. The company pays attention to introducing foreign advanced equipment and manufacturing technology, and continuously improves the company's technical level and product quality through large-scale technological transformation. All kinds of solenoid valves and gear pumps sell well all over the world. The company has a good market reputation and is the most professional automation expert in the world!