EN CN
Home / Services / Pump Encyclopedia / Pump Technique / What are the reasons for insufficient centrifugal pump pressure?

What are the reasons for insufficient centrifugal pump pressure?

07 Oct 2023Email

        Insufficient centrifugal pump pressure will seriously affect the industrial production process, in order to let customers have an early judgment on the cause of the failure, large-scale centrifugal pump manufacturer "Zoomlian pumps" technical staff summarized the following reasons for the insufficient pressure of large-scale industrial centrifugal pumps, if you find that the pump has the following similar conditions in operation, You can contact a professional to repair the pump or pipe to avoid greater damage.

split case pump

        1、insufficient inlet pressure: large centrifugal pumps need a certain inlet pressure to push liquid into the pump body, if the inlet pressure is insufficient, it will lead to a drop in the discharge pressure of the pump. The reasons for the insufficient inlet pressure may be pipeline obstruction, the inlet pipeline is too long or too small, the inlet water level is insufficient, and the inlet valve is not open enough.
        2、 impeller wear or damage: the impeller of a large centrifugal pump is the main fluid power component in the pump body, if the impeller is worn or damaged, it will lead to a drop in the discharge pressure of the pump. The wear or damage of the impeller may be caused by prolonged operation, the presence of particulate matter in the liquid, and the high temperature of the liquid.
        3、poor seal of the pump body: the poor seal of the pump body of the large centrifugal pump will lead to a drop in the discharge pressure of the pump, which may be the phenomenon of water leakage or seepage inside the pump body, which will reduce the discharge pressure of the pump. The reason for the poor seal of the pump body may be aging, wear, damage, etc.
       4、shaft seal failure: the shaft seal of the large centrifugal pump is used to prevent the leakage of the internal liquid of the pump body, if the shaft seal fails, it will also cause the discharge pressure of the pump to drop. The cause of shaft seal failure may be aging, wear, damage, etc.
       5、the operating speed of large centrifugal pump is not enough: the discharge pressure of large centrifugal pump is related to the operating speed of the pump, if the operating speed of the pump is not enough, it will cause the discharge pressure of the pump to drop. The reason for the insufficient running speed of the pump may be motor failure, belt slack, transmission system damage, etc.
The above are some possible reasons for the insufficient pressure of large centrifugal pumps, which need to be analyzed and investigated according to the specific situation, and corresponding maintenance and adjustment measures should be taken in time.
        Insufficient inlet pressure: Large centrifugal pumps need a certain inlet pressure to push liquid into the pump body, if the inlet pressure is insufficient, it will lead to a drop in the discharge pressure of the pump. The reasons for the insufficient inlet pressure may be pipeline obstruction, the inlet pipeline is too long or too small, the inlet water level is insufficient, and the inlet valve is not open enough.
         6、 impeller wear or damage: the impeller of a large centrifugal pump is the main fluid power component in the pump body, if the impeller is worn or damaged, it will lead to a drop in the discharge pressure of the pump. The wear or damage of the impeller may be caused by prolonged operation, the presence of particulate matter in the liquid, and the high temperature of the liquid.
         7、 poor seal of the pump body: the poor seal of the pump body of the large centrifugal pump will lead to a drop in the discharge pressure of the pump, which may be the phenomenon of water leakage or seepage inside the pump body, which will reduce the discharge pressure of the pump. The reason for the poor seal of the pump body may be aging, wear, damage, etc.

Related Pump Knowledge
More Pump Knowledge
23 Feb 2024
        In actual use, a water treatment pump station often requires multiple centrifugal pumps to operate jointly, and the water treatment system pro...
Read more
17 Feb 2024
          Condensate pump is one of the important components of the main condensate system, which can also be called condensa...
Read more
30 Jan 2024
         Water pump control valve is water pressure control valve, water pump control valve is composed of a main valve and its attached catheter, pil...
Read more
17 Jan 2024
First, the principle of boiler feed water pump           In the thermal power plant, the main role of the boiler feed pump is to draw water from the ...
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.