Will Two Water Pumps in Series Output 200 PSI?

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Connecting two identical water pumps in series theoretically allows for a total output pressure of around 200 psi, as each pump adds 100 psi to the input flow. However, the second pump must be designed to handle the 100 psi input at the given flow rate for this to be effective. In contrast, when pumps are connected in parallel, the pressure remains at 100 psi while the flow rate is divided between the two pumps. This configuration allows for the use of smaller pumps since the flow rate for each is reduced. Proper pump design is crucial for achieving the desired pressure and flow outcomes.
strk
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Lets say I have two water pumps that are the same and each can output around 100 psi of water pressure. If I were to connect them in series meaning that the output of 1 goes to the input of the other will the total pressure output at the last water pump be around 200 psi? what if I connect them in parallel?Thanks
 
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That is the theory. The pump rating is a pressure differential, which means it adds 100 psi to the input flow. But the second pump design must be able to handle the 100 psi @ the given flow rate for its input flow. Pump design is important for limitation on the maximum pressure. Positive displacement pumps are generally better suited for such an approach.

In parallel, the flow rate is divided by 2 but the pressure increase stay the same for both pumps, i.e. 100 psi. So you could use smaller pumps because the flow rate is smaller for each one.
 
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jack action said:
That is the theory. The pump rating is a pressure differential, which means it adds 100 psi to the input flow. But the second pump design must be able to handle the 100 psi @ the given flow rate for its input flow. Pump design is important for limitation on the maximum pressure. Positive displacement pumps are generally better suited for such an approach.

In parallel, the flow rate is divided by 2 but the pressure increase stay the same for both pumps, i.e. 100 psi. So you could use smaller pumps because the flow rate is smaller for each one.
Thanks
 
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