Testing method for the net positive suction head requirement NPSHR of diaphragm pumps
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Question: Test method for the net positive suction head requirement NPSHR of diaphragm pumps. Such as the NPSHR testing method for high-pressure coal slurry pumps. Urgent! !
This doesn’t seem to be measured; it needs to be calculated. The vapor pressure of the working fluid, the resistance in the inlet pipes, and so on are all necessary factors; engineers who specialize in design understand these better than I do, so I won’t try to explain them. Searching online will also yield results. During the process design, when selecting a pump, it is necessary to provide an inlet pipe from the source to the pump