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Advantages and disadvantages of single-stage pump and double-stage pump

06-08

2024

Advantages and disadvantages of single-stage pump and double-stage pump

The difference between a single-stage pump and a two-stage pump is mainly the number of impellers and their influence on flow and head. Different types of pumps are suitable for different scenarios and needs. In the choice of use, it is necessary to carefully consider according to the actual situation, and choose the most suitable pump type according to the needs. Single-stage pumps and two-stage pumps have their own advantages and disadvantages, and they need to be selected according to actual needs and conditions in use.

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Advantages and disadvantages of single-stage pump and double-stage pump
Three Measures to Improve Cavitation Performance of Centrifugal Pump

06-07

2024

Three Measures to Improve Cavitation Performance of Centrifugal Pump

Cavitation is a common problem of centrifugal pump, which can cause the increase of pump vibration and noise, the decrease of performance, and the serious damage of pump parts. Only a comprehensive and correct understanding of the cavitation performance of centrifugal pumps can scientifically and reasonably design or select products that meet the requirements of user devices.

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Three Measures to Improve Cavitation Performance of Centrifugal Pump
Methods of Solving Cavitation Problems in Centrifugal Pumps

06-07

2024

Methods of Solving Cavitation Problems in Centrifugal Pumps

When the centrifugal pump is running, due to the pressure change caused by the flow of the liquid, the liquid will appear in the local low pressure area at the inlet of the impeller, causing the gas to precipitate from the surface of the liquid and form the cavitation phenomenon. This phenomenon is called cavitation of centrifugal pump, which will have a serious impact on the performance and life of the pump.

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Methods of Solving Cavitation Problems in Centrifugal Pumps
Effective NPSHA (NPSHA) and Required NPSHB (NPSHB) for centrifugal pumps

06-07

2024

Effective NPSHA (NPSHA) and Required NPSHB (NPSHB) for centrifugal pumps

The cavitation margin of the centrifugal system refers to the ability of the pump to avoid cavitation when the flow rate is large under rated conditions. Cavitation refers to the presence of gas or steam in the liquid in the centrifugal pump, due to the decrease of the static pressure of the liquid, the gas or steam begins to evaporate to form bubbles, and then collapses in the high pressure area to produce liquid impact force.

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Effective NPSHA (NPSHA) and Required NPSHB (NPSHB) for centrifugal pumps
What are the three characteristic curves of centrifugal pumps and what are their functions?

06-07

2024

What are the three characteristic curves of centrifugal pumps and what are their functions?

Pressure head, flow, power and efficiency are the main performance parameters of centrifugal pumps, the relationship between these parameters can be measured by experiments, centrifugal pump production departments will be the basic performance parameters of its products expressed by the curve, these curves are called the characteristic curve of centrifugal pumps, for the use of departments to select pumps and operation reference.

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What are the three characteristic curves of centrifugal pumps and what are their functions?
Factors Affecting Several Important Characteristic Curves of Centrifugal Pump

06-07

2024

Factors Affecting Several Important Characteristic Curves of Centrifugal Pump

The characteristic curve of a centrifugal pump is related to many factors, such as the viscosity and density of the liquid, the width of the impeller outlet, the angle of the blade and the number of blades and the shape of the pressure chamber of the centrifugal pump will have an impact on the characteristic curve of the centrifugal pump.

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Factors Affecting Several Important Characteristic Curves of Centrifugal Pump
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