A customer once asked . with the same pump can I increase the flow with 10 hp instead of 5 hp now ?
Definitely not , but this is quite a common question as people still think bigger motor give more pressure or
capacity
The flow is determined by the pump size at given speed .Increasing the speed will increase the capacity and will required higher motor Kw .Check pump performance curve and determine what is the new duty needed
Also note the maximum speed of that pump
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