Built specifically for difficult-to-pump wastewater, the Delta impeller uses a unique double vortex action that helps pass challenging solids and stringy materials more effectively than traditional enclosed impellers or recessed designs. These two vortices create a natural flow path that guides solids through the pump, reducing the likelihood of hang-ups and clogs.
What makes the Delta™ impeller ideal for municipal applications?
- Handles Difficult Solids with Ease
The smooth, rounded vanes of the Delta impeller reduce hair pinning and promote a clean flow-through of rags, wipes, and straw—common in municipal wastewater. - Breaks Down Larger Solids
The impeller creates two vortices to weave and pass solids through the pump. - No Wear Rings or Axial Adjustments Needed
Unlike some enclosed impellers, Delta designs don’t require wear ring replacement or clearance adjustments—leading to lower long-term maintenance costs. - High Efficiency in a Solids Handling Platform
With efficiencies up to 65% and heads up to 500 feet, Delta impellers provide significantly better energy performance than many recessed impeller alternatives. - Proven in the Field
Thousands of Delta-equipped pumps are already operating in wastewater systems across North America—proven to pass materials that stall other solids-handling pumps.
Combined with Cornell’s Cycloseal® sealing system—which eliminates the need for costly flush water—the Delta impeller helps municipal operators lower operating costs while increasing uptime and reliability.
Municipal wastewater isn’t getting any easier to manage. Choose a pump that’s designed to keep up with today’s toughest solids.
Learn more about Delta™ impellers and Cornell’s municipal pump offerings at https://www.cornellpump.com/markets/municipal/ .
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