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In variable speed pumping systems, does zero load ever result zero pump speed?
Practically speaking, the answer is no. In closed hydronic systems with 2-way valves there is almost always some amount of differential pressure created by continuous impeller rotation – even when....
Read MoreWhat are the pump affinity laws and why are they so important?
Pump affinity laws define the mathematical relationship that exists between pump speed, flow, total head, and power consumption.
If a picture is worth a thousand words then a pump curve must be worth several thousand.
Make no mistake, there’s a lot of information on a centrifugal pump curve like the one shown here. It’s no wonder that many newly practicing engineers are a little intimated by them.
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