Centrifugal pump flow calculation
Thread Content
There is no flow meter at the outlet; the outlet pipe has a diameter of DN50, the pressure difference is 1.6 Mpa, and the flow rate is unknown. How can the flow rate be calculated?
The impeller diameter, pump speed, and type of fluid are required to make the calculation
What is the pressure difference of 1.6 MPa referring to? If there is valve control, it cannot be calculated based on the pump’s capacity.
Information such as pipe length, pipe properties, and medium is missing, so it’s impossible to calculate
If you are using a pump manufactured by Zhengshi Factory, you can find the information on it by checking the pump’s nameplate.
If the inlet diameter is also DN50, the flow rate might be 12. 5 cubic meters per hour. .
The conditions mentioned by the poster aren’t many nor detailed, but based on experience, the pump you described should have a flow rate of around 11 m3/h under normal operating conditions
The outlet diameter mentioned by the poster is DN50; I think the diameter of the suction pipe is DN65, and the flow rate stated in the manual is 25 cubic meters per hour. But I guess it might be 17–23 cubic meters per hour, for a multi-stage pump.