Series Operation Question
Series Operation Question
(OP)
Hi guys. I should know the answer to this, but.
For two pumps in series, namely a booster pump with a main pump, how do you know what the discharge pressure will be of the booster pump?
I know that the operating point of the two pumps in series will be at the point of intersection of the combined series operation pump curve (booster + main) with the system curve. That tells me the discharge pressure of the two combined pumps. How do I determine the actual discharge pressure of just the booster?
I have forgotten something fundamental here. Thanks guys! Pete
For two pumps in series, namely a booster pump with a main pump, how do you know what the discharge pressure will be of the booster pump?
I know that the operating point of the two pumps in series will be at the point of intersection of the combined series operation pump curve (booster + main) with the system curve. That tells me the discharge pressure of the two combined pumps. How do I determine the actual discharge pressure of just the booster?
I have forgotten something fundamental here. Thanks guys! Pete





RE: Series Operation Question
The suction pressure of the booster is the source pressure (tank or lake or whatever) minus the friction from the source to the booster pump suction, plus the static elevation pressure change. The discharge pressure of the booster is the suction pressure plus the differential pressure of the booster at the flow rate for the problem. Suction pressure of the main pump is booster discharge pressure minus the friction from the booster to the main pump suction, plus the static elevation pressure change. The discharge pressure of the main pump is the its suction pressure plus the differential pressure of the main pump at the flow rate for the problem.
RE: Series Operation Question
RE: Series Operation Question
My motto: Learn something new every day
Also: There's usually a good reason why everyone does it that way
RE: Series Operation Question
I hate Windowz 8!!!!
RE: Series Operation Question
1. High turbulence in the booster discharge may cause performance issues with the main pump.
2. Allowable pump nozzle loads would potentially be difficult with this direct connection