For example, if two of the same pumps are in series, the combined performance curve will have double the head of a single pump for a given flow rate. This is because the fluid pressure increases as the continuous flow passes through each pump, much like how a multi-stage pump works. Putting your centrifugal pumps in series, or connected along a single line, will let you add the head from each together and meet your high head, low flow system requirements. CENTRIFUGAL PUMPS IN SERIES - HIGH HEAD / LOW FLOW APPLICATIONS The following post walks you through pumps in series and in parallel so that you can get your ducks… I mean pumps… in a row – or side by side, depending on the application. Rather than purchasing a heavy duty pump that may be far more than you need, consider taking advantage of system design strategies to combine simple pump performances that add up to the necessary requirements. Sometimes the required operating conditions for a system are beyond the reach of a single, standard pump.
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