Grindex Sludge Pump: Primo S8

Electrical submersible 1~ mini sludge pump

Grindex Primo is a range of small, handy and affordable pumps, including two drainage and two sludge pumps. The Primo pumps are ideal for construction, industrial and municipal jobs, and the highly compact design allows the Primo pumps to operate in dewatering applications where others don’t fit.

Technical Data
Discharge connection2″
Rated Power P20,75 kW
Rated current at 230 V5,2 A
Solids passage25 mm
Weight13 kg
Height416 mm
Diameter250 mm
Shaft Speed2800 RPM


  • Single phase
  • Electrical submersible pumps
  • Protection class: IP 68


  • Max. submersion depth: 5 m (16,5 ft)
  • Max. liquid temperature: 35 °C
  • Allowed pH range: 6,5-8


  • Pump top: Aluminium
  • Stator housing: Aluminium
  • Motor shaft: Stainless steel
  • Impeller (S4 & S8): Cast Iron
  • Diffuser (S4 & S8): Cast Iron
  • Screws and nuts: Stainless steel

Discharge connection

  • 2” hose, ISO thread


  • Float switch