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Difful SOLAR PUMPS-- How is the flow and head of the pump calculated?

Difful SOLAR PUMPS-- How is the flow and head of the pump calculated?
Issue Time:2019-04-12
How is the flow and head of the pump calculated?

Pump is a common means of transport media, for the use of pumps many people will use, but many people want to study the pump in depth, but want to use various methods to measure the pump head flow and so on. But they are not too accurate. Now let's share how to measure the flow and head of the pump.
Pump flow is relatively simple, flow = velocity * cross-sectional area
Even so, there are still some errors, so we can reduce the errors by filling or subtracting the water in the pipeline or adding the pump in the pipeline at the side flow rate. At the same time, the voltage, we have to ensure that under the rated voltage, the flow can be measured accurately.

As for the head of the pump, we can calculate it in this way, for example.

The head of a centrifugal pump is now measured. When the working fluid is clean water at 20 C and the measured flow rate is 60m ^ 3/h, the reading of the vacuum meter at the inlet of the pump is 0.02Mpa, and the reading of the pressure gauge at the outlet is 0.47Mpa. It is known that the vertical distance between the two meters is 0.45m. If the diameter of the suction pipe and the pressure pipe is the same, the pump head is calculated.
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