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Iindustrial pumps
Mechanical seals

Downhole sand-resistant pumps Pedrollo 4SR


The design of the hydraulic part of the pump, the composition of the materials used, the front insert in combination with axial movement of impellers and the ability to pump water with a sand content of up to 150 g /m³ provide reliable protection of the pump against seizure and wear caused by the ingress of sand.

Technical specifications:

  • Productivity up to 375 l /min (22.5 m³ /hour).
  • Head up to 525 m.
Application limits:
  • Liquid temperature up to + 30 ° С.
  • Sand content not more than 150 g /m³.
  • Number of starts per hour: 20 at regular intervals.
Scope and installation
Recommended for pumping clean water with a sand content of no more than 150 g /m³. Due to their high efficiency and reliability, they are suitable for household use, utilities and industry, for the organization of water supply in combination with systems maintaining pressure, irrigation, increasing pressure in the network. In washing plants and systems fire extinguishing, etc.
Design characteristics
  • Pump casing and support: stainless steel AISI 304.
  • Check valves: stainless steel AISI 304.
  • Impellers and diffusers: technopolymer
  • Diffuser carrier box: stainless steel AISI З04
  • Pump casing: stainless steel AISI 304.
  • Pump shaft: stainless steel AISI 304.
  • Pump bearings: fixed part made of special technopolymer. and rotating bushings and shaft made of AISI 316 stainless steel with chromium oxide coating for increase resistance to sand.
  • Drive clutch: stainless steel AISI 316L up to 2.2 kW; stainless AISI 304 steel for higher power
  • Fasteners, filters and cable protectors: stainless steel AISI 304.
  • Engine: electric submersible 4-inch Pedrollo 4SRm: single-phase 220-230 V - 50 Hz. 4SR: three-phase 380-415 V - 50 Hz.
  • Degree of protection: IP68
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