Allegro 9404-04 Sludge Dewatering Pump

Allegro 9404-04 Sludge Dewatering Pump

(No reviews yet) Write a Review


Excelent for pumping standing water containing sand, solids, leaves or debris at a maximum of 50 gallons per minute. Submersible to 39 feet and continuous running water level to 3 1/2". 1/2hp motor. Portable, submersible pumps are excellent for manholes, vaults, construction sites, residential, commercial, industrial wastewater and construction site drainage, and effluent transfer. They offer top discharging for which allow continuous operation at low water levels and extended dry runs without overheating.

Features and Specs:


  • Impeller: Semi-vortex Urethane rubber impeller with agitator suspends solids and allows for pumping of sand and stringy material
  • Seal: Double inside mechanical seals with silicon carbide faces, (top and bottom)
  • Shaft: 403 stainless steel sleeve, the most durable seal design available
  • Motor: Continuous air filled, copper wound motor with class B insulation
  • Protection: Built in thermal & amperage sensing, protector prevents failure due to overloading or accidental run- dry conditions
  • Bearings: Double shielded, permanently lubricated, high temperature C3 ball bearings rated for a B-10 life of 60,000 hours
  • Discharge: Top, flow-through design, with solids handling capability 1” X 3/8” (2.5cm x .95cm)
  • Connection: Fire hose style quick connect fittings (Cam-Lock design)
  • Elastomers: NBR (Nitril Buna Rubber)


  • Motor: 1/2 HP (.4 k W) 3600 RPM
  • 60 Hz 115V AC Single Ø
  • Power Cable: Submersible 16’ (4.87m) (76’ Max)
  • Performance Range: 15~50 GPM (0.056~.19 m3 /min)
  • Head: 6~34 Ft. (1.82~10.3m)
  • Max Water Temp: 104° F (40° C)


  • Casing: Ductile cast iron
  • Impeller: Urethane rubber
  • Shaft: 403 stainless steel
  • Motor Frame: Aluminum alloy
  • Fasteners: 304 stainless steel