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SEWAGE/DRAINAGE PUMPS

WILO REXA MINI 3

Design:
Submersible sewage pump as submersible monobloc unit for portable wet well installation in intermittent operation. The Wilo Rexa MINI3 is the ideal submersible pump for standard sewage in site drainage and domestic situations. Its 40mm free ball passage makes it suitable for pumping wastewater and sewage free of faeces. The pump can be used flexibly for both stationary and portable wet well installations. The optimised hydraulics provide high levels of reliability for universal application in the pumping of a diverse range of fluids. Its compact design means it can even be installed in narrow drainage pits. The oil-filled sealing chamber and a double seal allow for longer maintenance intervals. Direct access to the most important components makes carrying out maintenance work very convenient.

Application:
  • Pumping of sewage not containing faeces.
  • Pumping of wastewater.
*Sewage containing faeces can be pumped when the pump is installed in the DrainLift WS 50 pump chamber. The system has been approved in accordance with EN 12050-1.

Special features/product advantages:
  • High efficiency and operational reliability thanks to the optimised hydraulics.
  • Easy installation – even in narrow drainage pits – thanks to its lightweight, compact design with integrated condenser and threaded flange.
  • Reliable use in a variety of drainage applications thanks to the corrosion-free impeller and sealed cable inlet.
  • Longer maintenance intervals thanks to the high-volume sealing chamber and double seal.
  • Quick maintenance facilitated by direct access to the sealing chamber and pump housing.
  • Self-switching thermal motor monitoring.

Technical data:
  • Mains connection: 1~ 230 V, 50 Hz or 3~ 400 V, 50 Hz
  • Submerged operating mode: S1
  • Non-immersed operating mode: S3 15%
  • Protection class: IP68
  • Insulation class: F
  • Fluid temperature: 3 - 40 °C
  • Free ball passage: 40 mm

Materials:
  • Pump housing: grey cast iron
  • Impeller: composite
  • Cover plate on suction port: stainless steel
  • Motor housing: stainless steel
  • Shaft: stainless steel
  • Seal on the motor side: NBR
  • Seal on the fluid side: SiC/SiC
  • Static seal: NBR

Scope of delivery:
Pump with connection cable and Plug (version P) or Plug and float switch (version A) or Bare cable end (3~). Installation and operating instructions are also included.
Rexa_MINI3-V04.09_M05-523_A-5M.pdf
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