Plumbing Question

[sphelps]

Originally Posted by banditpowdercoat

Acctually, with a centrifugal pump, restricting the flow uses Less power.

In theory yes, but each style of centrifugal pump will have a different pump curve for both flow and power. As head pressure is initially increased from 0 the pump will actually start to consume more power and as head pressure is further increased the power will reach a max and then begin to decrease. The highest efficiency occurs when the power curve intersects with the pressure curve. So you'll notice I used the word "likely" as it may or may not use more power, you would have to hook up a power meter to figure that one out for sure.

But thanks for clearing that up