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Identical Pumps in Series vs. Parallel - flow rates vs. power consumption vs. longevity
Two identical pumps piped in series vs. parallel:
Q1: Will either piping yield double the system flow rates?
Q2: Will the power consumption be equal in both cases?
Q3: Will either piping affect the life expectancy of the pumps? Just thinking the pumps piped in parallel might be working "harder" overcoming higher head vs. pumps in series sharing the resistance. But then, when the head/resistance is shared, the pumps in series work at a higher flow rates, i.e. potentially more wear and tear so to speak... so I can't draw a conclusion... as you can already tell, I'm no engineer.
Thanks in advance.