Centrifugal pumps and compressors are both rotating equipment devices. Each is a machine that imparts kinetic energy to the fluid to create pressure and move liquids, gases, and other process materials. So what are the differences between pumps and compressors? The main differences are intimately connected with the properties of the process fluid medium being […]
Critical Pump Selection Webinar – Video
After the success of my webinar, I am making a recording of it available for everyone who was not able to attend, and those who wanted more time to go over the material and illustrations. Thanks again to everyone who attended the live webinar! If you want to hear about future webinars, subscribe now for […]
Multi-stage pump in-line (tandem) versus opposed impeller arrangements
Common to early twentieth century multi-stage rotodynamic (centrifugal) pumps were design features for minimizing axial thrust. At that time the thrust bearings available had limited load carrying capability. Design solutions evolved in two principal directions. One design approach was to hydraulically balance the thrust for each stage or for the entire series of in-line (tandem) […]