¡El sound of operation is light, and the level of work is very low. There are 4 types of pumping stations from 1 to 3 groups, 16 series, and 32 displacements. ¡El optimal combination of displacements can be carried out according to the circuit requirements, thus enabling an energy-efficient system. ¡El use of a combination of different displacement pumping stations, through individual pressure control, compared to the use of a single large displacement variable capacity hydraulic pump, ¡El overall circuit can be simplified. In addition, the system composition has a large degree of freedom, and at the same time, it can achieve low noise. ¡El main rotating part adopts a plug-in structure, which is easy to maintain. Launched F14-SQP products using water glycol working oils. ¡El sliding part has excellent wear resistance, can be operated under high pressure, and has a long service life