Chopper pumps

Chopper pumps exist in various configurations, including submersible and dry-installed design and they are typically equipped with an electric motor to run the impeller and to provide torque for the chopping system.

An open impeller design is used to successfully pass the macerated solids or thick slurry.

A system of mechanical seals are used to prevent the pumped liquid from entering the motor.

The pump can either be connected to a pipe, flexible hose or lowered down a guide rail so that the pump sits on a coupling foot (aka base elbow), thereby connecting it to the discharge pipe.

Examples of applications where chopper pumps are commonly applied include:

Picture of a dry-installed chopper pump, model MPTK-I.
The inventor of the chopper pump, Christian Ølgaard.