Highest Efficiency Cleaning for Variable Flow Rates

The Raptor® Grit Washer effectively washes and stirs the grit ensuring only cleaner, dense grit remains. Combining a circular and conical design with natural vortex and gravity forces, the washer provides the highest washing efficiency over a wide range of flow rates.

Influent flow enters the all stainless steel unit tangentially, creating centrifugal forces that allow water and lightweight organics to discharge over an upper weir plate. Grit and heavier materials settle to the lower conical shaped grit zone where they are gently agitated by mixer arms and washed. Organics released during agitation and washing are removed periodically via a blow down valve maximizing grit removal operations.


  • Typical grit discharge is 90% dry weight or greater, with less than 5% organic material
  • Compact design for grit and organic separation
  • Able to accommodate a wide range of flow rates
  • Stainless steel construction, engineered to withstand the environment and provide efficient operation over the life of your system