For selecting the pump, it is important to understand the individual factors that affect pump efficiency. Please go through the attached tutorial once. You will get your problem solution.
You can select the pump based on the pump manufacturer’s catalogue information using the total head and flow required as well as suitability to the application. Regarding the flow rate, you have to choose it according to your needs.
No, unfortunately you can not multiply them. Either you have the speed of the flow and the section of the pipe, then multiply them or you choose yourself the flow rate depending on your needs.
Hi want to do the vibration analysis of the pump (centrifugal pump) please let me know that how can i see the cavitation with the vibration signal. can any body guide from where is the best point to attach the vibration sensors