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Ray Barrett
Product Manager

Screw Pumps: inspected, repaired, and replaced

Increase operating efficiency and reduce maintenance

Screw pumps from Evoqua are an excellent solution for lifting water, wastewater, and other liquids in a variety of municipal and industrial applications. Evoqua, through the Davco product line is a comprehensive resource for maintaining screw pumps with the ability to repair, inspect, and provide complete turnkey replacement. Our product and field service experts are ready to respond.

Contact us to schedule an onsite equipment evaluation.


 At Your Service

  • Factory rebuilds and replacements
  • On-site inspections
  • Extend the life of screw pumps
  • Performance optimization
  • Personnel training and maintenance guidelines
  • Complete turnkey services
  • Comprehensive OEM expertise

 Internalift® Screw Pumps

  • 85% pumping efficiency
  • 100% volumetric efficiency
  • Internally welded flights (eliminate loss from backflow)
  • Simple, low-cost controls
  • Pump operates at variable flows without losing efficiency

 Externalift™ Screw Pumps

  • High flow applications
  • No grit removal or pre-screening
  • Variable flow at constant speed
  • High operating efficiency over large flow variations

 Video: Replace or Rehab Screw Pumps

 Municipal & Industrial Applications and Expertise

  • Raw sewage, RAS, final effluent, and intermediate process pumping
  • Lifting slurries, sludges, and other liquids containing suspended solids
  • Oil and other viscous liquids or wastes
  • Lifting past fish dams
  • Irrigation Screw Pumps: inspected, repaired, and replaced