I looked at the pump curve. For the given flow rate and head, the pump efficiency is 83% with 2 stages. There is a note in the pump curve stating that deduct 2% efficiency for single stage turbine pump.
Can you make a general statement saying that higher the number of stages better the pump...
Based on a given set of performance criteria (i.e. flow rate, head, etc.) one manufacturer is providing a pump with a single stage vertical turbine pump and another with a 2-stage turbiner pumps. Both are offering similar efficiency and pump motor size. Why? What is the significane of single...
