Positive Displacement Pumps Demystified: Diaphragm, Progressive Cavity, and Gear TypesMost plant engineers meet centrifugal pumps first, but positive displacement (PD) pumps are just as important in many duties. Rather than accelerating fluid with an impeller, a PD pump traps a fixed amount of liqui
A practical guide to selecting the right centrifugal pump for industrial applications. Learn how to evaluate flow rate, head, materials, seals, and motor specs to optimize performance and reduce costs.