Slowing Down Your Pump's Motor with a Variable Frequency Drive (VFD)

In a positive displacement pump, each rotation of the shaft and gears carries a fixed volume of liquid from the supply tank to the downstream piping. When paired with an AC induction motor, speed and flow are very consistent. But what if you want to CHANGE the flow? In this episode of the Pump Report, Chad discusses controlling your positive displacement pump's motor with a variable frequency drive - or VFD.

GB-425 Series™

GB-425

The GB-425 Series™ external gear pump is the cleanest solution for pipeline injection applications. The rebuildable design makes repair quick without having to leave the field and features new advanced materials on critical internal wear surfaces. It can handle flows up to 685 GPM.

SG SERIES™

SG

The SG Series™ spur gear pump is the ideal solution for pipeline injection, pipeline sampling, oil polishing, and more due to its high pressure capabilities and efficiencies. It can handle flows up to 190 GPM (719 LPM).

CMD SERIES™

CMD

The CMD Series™ external gear pump is the ideal solution for many highly corrosive clean liquids used in the chemical processing, chemical dosing, pulp and paper and industrial water treatment industries. It can handle flows from 0.4 to 20 GMP (1.5 to 75 LPM).