Efficiency of centrifugal pumps
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What should be the typical efficiency value for centrifugal pumps?
60–75% of them can choose this.
For pumps with low flow rates and high head, it is generally 10~30%; for those with high flow rates and low head, it is 70~80%. The remaining range is usually 50~75%, depending on the actual parameters of the pump and its type
60%~80% is fine! !
The one on the 5th floor **explained it in great detail**
The original poster’s statement is too general; the efficiency of centrifugal pumps can be less than 10% in some cases, while it can reach around 90% in other cases. It mainly depends on the requirements specified for the pump. Those with low flow rates and high head require a lower value, while those with high flow rates and low head require a higher value. Furthermore, differences in the technical level of pump manufacturers can also result in significant variations in efficiency. The key is still to consult the samples from various pump manufacturers; one should not work in isolation and rely on their own estimates.
A specific analysis is needed. For ordinary low-flow pumps, the efficiency can be as low as 6%. The efficiency at high throughput can reach 55%. It is best to consult the pump manual.
The operating conditions and the level of the selected manufacturer determine the differences in efficiency.