EN CN
Home / Services / Pump Encyclopedia / Pump Knowledge / What is the relationship between the flow, head and efficiency of the pump?

What is the relationship between the flow, head and efficiency of the pump?

04 May 2024Email

           There is a close relationship between the flow, head and efficiency of the pump, which together determine the working performance and economy of the pump, in this article, the pump manufacturer Changsha Zoomlian pump industry will explain the relationship between the flow, head and efficiency of the pump in detail, so that you will have a basic understanding of the parameters of the pump.

 

1580796798731982

 

           First, the flow rate refers to the volume of water transported by the pump per unit time, usually expressed in cubic meters per hour or cubic feet per minute. The lift is the mechanical pressure that the pump needs to overcome to transfer the material from the low to the high level, expressed in kg/cm or feet/ton. Efficiency is a measure of the relationship between the energy consumed by the pump to transfer the material in a specific situation and the benefit produced, usually expressed as a percentage.

           In practical applications, the flow, head and efficiency of the pump are mutually affected. In general, when the head of the pump increases, the flow will decrease accordingly, and vice versa. This is because the power of the pump is certain, and when a higher head needs to be overcome, more energy is needed to push the water upward, resulting in a reduction in flow. At the same time, this change will also directly affect the efficiency of the pump. If the operating state of the pump is not at its optimal efficiency point, its efficiency will decrease, which will increase the operating cost of the pump.

           In addition, according to the pump theory and formulas, such as the calculation formula of shaft power, the relationship between flow, head and efficiency can be seen. Shaft power is proportional to the product of flow and head, and inversely proportional to efficiency. Therefore, when designing and selecting the pump, these factors need to be considered comprehensively to find the best working point to make the pump run in an efficient and economical state.

           All in all, there is a close relationship between the flow, head and efficiency of the pump. In practical applications, it is necessary to select the right pump according to the specific working conditions and needs, and adjust its running state to achieve the best working effect.

Related Pump Knowledge
More Pump Knowledge
11 May 2024
The role of boiler feed pump in thermal power plant          In the operation of thermal power plant, boiler feed pump plays a crucial role. Its core...
Read more
04 May 2024
           There is a close relationship between the flow, head and efficiency of the pump, which together determine the...
Read more
27 Apr 2024
            When the O-ring of the multistage pump is damaged or aged, it needs to be replaced in time to ensure the nor...
Read more
20 Apr 2024
           Multistage centrifugal pump vs single-stage centrifugal pump: Which is more efficient? For this problem, the centrifugal pump professional ...
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.