Armstrong In The Media

As Seen On: pumpsandsystems.com July 27, 2021

Pump Cavitation

Cavitation is a condition that can affect any fluid flow system. Despite it being an ever-present threat, it is not well understood. In the simplest possible terms, cavitation involves the formation of water vapor bubbles that damage metal components when they collapse back to the liquid phase. Here are some common questions and answers that relate to cavitation. To help operators diagnose cavitation remotely, Armstrong offers Pump Manager, a cloud-based subscription service that tracks performance and provides notifications on any issues.

As Seen On: pumpsandsystems.com June 21, 2022

Over the last 150 years, development of the electric motor has gone in fits and starts. Initially, all electric motors used direct current (DC). But with the advent of alternating current (AC) and amid the “battle of the currents” between industrial development giants George Westinghouse and Thomas Edison, Nikola Tesla unveiled
his induction motor, a new design that converted the power of alternating electrical current into rotational torque.

It was a game changer. As well as helping Westinghouse win the battle of the currents, it was relatively easy to make, efficient and, crucially, needed no slip rings or brushes to transmit electrical current to the shaft. These parts were the Achilles’ heel of the DC and slip-ring type AC motor, requiring regular maintenance to replace them as they wore out.