If the material won't fit through, the pump keeps chopping it until it does. Once again - positive chopping. Benefits With positive chopping, you can pass large, troublesome materials through the pump, thus eliminating downstream plugging of valves, heat exchangers, nozzles, or other pumps. This approach is extremely cost-effective since the maintenance costs on comminuters alone can be very high. By chopping material in the pump, you can actually reduce pipeline friction by pumping a more homogeneous slurry.
Chopper pumps are able to handle materials in sumps that no other pump can handle.
Hard, wear-resistant pump parts hold up to the rigors of chopper pump service. Standard pump impellers and cutter bars made of cast alloy steel heat-treated to 550 Brinell will provide extended service life in the majority of applications. Selection of a manufacturer with extensive experience in these severe duty applications will assure the user of dependable service. Chopper pumps are not a commodity item, as every application is unique in its severe nature and duty. Always quiz your supplier as to the history of their product when applying any engineered equipment, such as chopper pumps.