Control element and description of hydraulic drive

Hydraulic drive in the following several control components to achieve the punch under pressure, pressure and return process.
1. Manual directional control valve with manual operation to control the movement of the spool. Manual valve is divided into manual and foot two. The advantage is simple, flexible and easy to control.
2. Electromagnetic valve through the electromagnetic force generated by the electromagnetic force to make the spool movement, to achieve the conversion of oil. However, due to the attraction of the electromagnet limit, the electromagnetic valve flow can not be too large and the need to increase the reducer in the circuit.
3. Cartridge valve is a new type of switch valve body, the structure to the cone valve as the base unit, with a different pilot valve can achieve the direction of the flow, pressure and flow control. Its structure is simple, fast response, suitable for high pressure and high flow of the occasion.