Pump Affinity Laws: A Useful Shortcut That the System Can Overrule
The cube-law power saving is real, but only under the right assumptions. This worked example shows what speed changes do to a pump curve—and what the system curve can undo.
The cube-law power saving is real, but only under the right assumptions. This worked example shows what speed changes do to a pump curve—and what the system curve can undo.
Parallel pumps add flow at a common head; series pumps add head at a common flow. The system curve determines how much of that theoretical increase reaches the pipework.
More stages increase head, not automatically efficiency or suitability. This guide explains where single-stage and multistage pumps fit in building and industrial water systems.
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