i'm new here but i have question about pumping over a long distance with no elevation change.. knowing the pressure drop over the length of pipe, how would you determine the number of (identical centrifugal) pumps necessary? if you wanted a specific flow rate at the end of length, would you just find the head that can be delivered by a single pump at that specific flow rate and divide the pressure drop over the length of pipe by the delivered head? this from the idea that two centrifugal pumps operating at the same speed and the same volumetric flow rate contribute the same pump head..
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