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1.The working pressure, volumetric efficiency and total efficiency are all the highest. Because the plunger and cylinder bore are easy to process, the dimensional accuracy and surface quality can reach very high requirements, so the matching accuracy is high, the oil leakage is small, and the working pressure that can be achieved is generally 20-40 MPa, and the highest can reach 100 MPa.

2.The transmittable power is the largest. As long as the plunger diameter or the number of plungers is increased appropriately, the flow rate will increase. High pressure and high current can transmit high power.

3.Wide speed range.

4.Long service life and high power density. The main parts of the plunger pump are under pressure, so that the material strength can be fully utilized, so use long life, and low weight per unit power.

5.Good bidirectional variable capacity. Changing the stroke of the plunger can change the flow rate, making it easy to make various variable types.