Hi, Can you please advise on how to calculate the head losses for two centrifugal pump connected in parallel to a common suction line? And also the NPSHa for the pump. The flow rate require is 500 liters/sec and the pump is 100m away from a reservior 5 m above the pump. The water is pump to two tanks one 200m away at 30m and the other 300m away at 50m. Currently the selected suction pipe size is 500mm. Thanks.
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