What should I do if the hydraulic pump or hydraulic valve system runs slowly and under speeds? The hydraulic system runs slowly, which is often referred to as under speed. Under speed does not work, but fails to meet the system requirements, so troubleshooting is difficult and there are many situations. The following summarizes the two situations and specific causes of hydraulic system under speed for your reference.

A throttle is a valve that controls the flow of fluid by changing the throttle cross section or throttle length. The throttle valve does not have a negative flow feedback function, and cannot compensate for the speed instability caused by load changes. Generally, it is only used in situations where the load changes little or the speed stability is not high. The external structure of the throttle valve is not different from that of the shut-off valve, except that the shapes of their opening and closing parts are different. The opening and closing parts of the throttle valve are mostly conical streamlined, which can adjust the flow rate and pressure by changing the cross-sectional area of the channel. Throttle valve is used to reduce the pressure of the medium under the condition of extreme pressure drop. The flow rate of the medium between the throttle disc and the valve seat is so large that the surface of these parts is quickly damaged-the so-called cavitation phenomenon. In order to minimize the effects of cavitation, the valve disc is made of a cavitation resistant material (made of alloy steel) and is made into a streamlined cone with a tip angle of 140 to 180. This also allows the valve disc to have a larger opening height, which is generally not recommended. Throttle under small crevices.

What is the difference between a hydraulic motor and a hydraulic pump? How should they distinguish between them? Hydraulic pumps and hydraulic motors are the most important components in hydraulic transmission systems. One is the power components, the other is the actuators, one converts the mechanical energy into hydraulic energy, and the other converts the hydraulic energy into mechanical energy. Achieving complex mechanical motion and providing a stronger mechanical torque, so what is the difference between the two? Where are they applied separately?

Three minutes to learn how to adjust the main relief valve when excavator is powerless, the machine problem is solved! Speaking of the main relief valve, even the newly arrived machine is no stranger, enough to see the importance of the valve! It can be said that most of the excavator's inability to move, brakes and other faults are inextricably linked to the valve. Since the main relief valve is so important, how to accurately determine the fault when the valve is abnormal, and solve the fault accurately by adjusting the main relief valve by itself? Don't worry, the expert will introduce you in detail.

Axial piston pump common faults and troubleshooting methods. Do you know why piston pump has many problems, and how to choose the right way for troubleshooting？ As we manufacture all kinds of hydraulic pump, pump parts, piston assy, main valve, relief valve, regulators, bearing and so on.Today we interview our engineer colleague to explain to you the causes and choose the right way to solve the problem.

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