Allegro 9404-04 Sludge Pump

Item #9404-04

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.

  • Motor: 1/2 HP (0.4 kW) 3600 RPM 60 Hz 115V AC Single Phase 
  • Power Cable: Submersible 20’ (6.1 m) 
  • Performance Range: 53 GPM (0.2 m3/min) 
  • Head: 39 ft. (11.9 m) 
  • 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
  • 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” (2.5 cm x 0.95 cm) 
  • Connection: Fire hose style quick connect fittings (Cam-Lock design) 
  • Elastomers: NBR (Nitril Buna Rubber)
  • Sold Individually


Portable, submergible pumps are excellent for manholes, vaults, construction sites, and all dewatering needs. They offer top discharging which allows continuous operation at low water levels and extended dry-runs without overheating. Includes synthetic rubber wear parts and vortex impeller for durability. All pumps and hoses feature fire hose-style quick connect fittings, and a V-ring system to protect the shaft seal from abrasives.

Do you order this product often and/or in large quantities? Check out our Large Order Program to save yourself time and money.
  • Manufacturer:

    Allegro Industries