Asking questions about pump QH
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Dear gods and seniors: My brother lacks professional knowledge and I would like to ask for advice on the QH curve of the vortex pump.: The QH curve in the figure below shows that the full head curve at 250L/min is around 50m, but the actual manufacturer gives 30m (red triangle). Why is this? How do you look at the QH curve?
This post was last posted by 3983596_FPPZ edited on 2019-5-30 13:44 It should include the safety margin after the gap change and give a conservative value. Why should a vortex pump be used for this parameter?
Thank you to the great man above. The transmission medium is emulsion, which has a lot of foam, so a vortex pump was chosen.
The flow head curve corresponds to the required parameters. It must be a bit wrong.