EN CN
Home / Services / Pump Encyclopedia / Pump Knowledge / What is the reason for the increased pressure of the gear pump?

What is the reason for the increased pressure of the gear pump?

07 May 2022Email

Because the pressure of the gear pump comes from the closed cavity between the gear and the casing, there must be end face clearance and radial clearance for the gear to rotate. To increase the output pressure of the gear pump, it is necessary to reduce the clearance. When the gear rotates at high speed, the friction will increase, and the gap will become larger after a period of time, and the pressure will increase.

 


Because the pressure of the gear pump comes from the closed cavity between the gear and the casing, there must be end face clearance and radial clearance for the gear to rotate. To increase the output pressure of the gear pump, it is necessary to reduce the clearance. When the gear rotates at high speed, the friction will increase, and the gap will become larger after a period of time, and the pressure will still not increase. Generally, axial and radial clearance compensation measures are used.

In addition, the pressure of the gear pump increases, the radial force on the gear increases, and the bearing capacity of the bearing will be tested.

 

Let's analyze the specific reasons for this situation.

1. The KCB gear oil pump is a positive displacement pump, and its outlet pressure is determined by the back pressure, that is, the pipeline resistance drop pressure. If the pressure of the pipe network is large, the outlet pressure of the KCB gear oil pump will be high.

2. Check again whether the diameter of the outlet pipe is the same as the size of the pump outlet

3. The problem may be in the oil circuit, such as blockage, the valve is not fully opened, or the oil-using part is blocked.

4. The KCB gear oil pump itself should also be checked, but not as the focus.

Related Pump Knowledge
More Pump Knowledge
20 May 2022
The following are some brief descriptions about the high-pressure washer pump. The pump is the heart of the operation of the high-pressure washer, so ...
Read more
17 May 2022
The gear oil pump and the arc gear pump have been idle for a long time without running. When they are restarted, the gear pump seal will leak, the gea...
Read more
13 May 2022
The clean water centrifugal pump is a rear opening type, and it is not necessary to disassemble the suction and discharge pipelines when disassembling...
Read more
10 May 2022
The centrifugal oil pump has played a huge role in the iron and steel industry, so we have taken some measures to improve the efficiency of the centri...
Read more
Related Products
More
Need More Information?
Contact us for more details about our pump, solutions and services.
Contact ZB
Tel
0086 731 88192011
Leave a message
Name*
Tel
Email*
Area
Products
Split Case Pump
Metallurgy
Mining Industry
Urban Water Supply
Petrochemical
Light Industry
Electricity
Chemical Industry
Farmland Irrigation
Other
Provide your comments and questions.