pump comparison

Pumps

What Is the Difference Between a Centrifugal and Positive Displacement Pump?
Bysystems June 15, 2026June 4, 2026

The main difference between centrifugal and positive displacement pumps lies in their pumping principles: A centrifugal pump uses an impeller to convert kinetic energy into dynamic pressure through rotational motion, producing continuous flow that varies with system pressure. In contrast, a positive displacement pump traps fluid in an expanding cavity and forces it through a…

Read More What Is the Difference Between a Centrifugal and Positive Displacement Pump?
Pumps

Submersible Pump vs Self-Priming Pump: Which Water Pump Is Better for Your Application?
Bysystems May 11, 2026May 7, 2026

A submersible pump operates fully submerged underwater with an integrated motor and impeller, whereas a self-priming pump sits above ground and uses a priming chamber to eliminate air from the suction line. The fundamental difference lies in pump installation location: submersible pumps work underwater, eliminating priming requirements, while self-priming pumps remain accessible on the surface…

Read More Submersible Pump vs Self-Priming Pump: Which Water Pump Is Better for Your Application?