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Wilo-Rexa NORM | Wilo
Your advantages

Your advantages

  • Easy impeller replacement due to "Back-Pull-Out" design and spacer coupling as standard. This makes it possible to uninstall the impeller without dismantling the hydraulics from the pipeline and the motor from the baseplate.
  • Shut "Back-Pull-Out" unit: Dismantling without draining the oil in the sealing chamber.
Series description
Wilo-Rexa NORM


Sewage pump for stationary dry well installation in continuous operation in two versions:

  • Unit: Hydraulics with standard motor, connected via coupling, fully mounted on baseplate
  • Bare shaft: Hydraulics mounted on baseplate, coupling pre-assembled


Pumping of

  • Untreated sewage
  • Sewage containing faeces
  • Process water
  • Wastewater


  • Winding temperature with PTC or Pt100 sensor (motor dependent)
  • Optional external pencil electrode for the sealing chamber monitoring



Technical data


  • Fluid temperature: 3…70 °C
  • Ambient temperature: 3…40 °C


  • IEC standard motor, connection B3
  • Operating mode: S1
  • Protection class: IP55
  • Insulation class: F
  • Motor efficiency class: up to IE4


  • Hydraulics housing: EN-GJL 250
  • Impeller: EN-GJL 250
  • Hydraulics shaft: Stainless steel 1.4021
  • Bearing bracket: EN-GJL-250
  • Static gaskets: NBR
  • Sealing on pump side: SiC/SiC
  • Sealing on motor side: NBR
  • Coupling: Stainless steel
  • Baseplate: EN-GJL 250 or steel (dependent on type)



Hydraulic system with axial suction ports, radial discharge ports and bearing brackets as a single unit. The connections are configured as flange connections.


Bearing bracket with sealing and leakage chamber for admission of fluid ingress via the seal. Fluid-side seal via a bidirectional mechanical seal, coupling-side seal as a rotary shaft seal. The sealing chamber is filled with medical white oil, the leakage chamber is shut up to the coupling. Optionally, the sealing chamber can be monitored with an external pencil electrode.


IEC standard motor version B3 permanently connected with the hydraulics via spacer coupling. Three-phase current motor with thermal motor monitoring and motor efficiency class up to IE4.

Scope of delivery

  • Sewage pump as a unit:
    • Hydraulics
    • Standard motor in three-phase version without connection cable
    • Fully mounted on baseplate and connected via a coupling
    • Installation and operating instructions

  • Sewage pump as a bare shaft:
    • Hydraulics mounted on baseplate
    • Coupling pre-assembled
    • Installation and operating instructions

Installation and operating instructions

Wilo-Rexa NORM/RexaNorm RE

Article Number 6081510
Edition 2021-04
Page format 209.9 x 297.0 mm
Number of pages 32
PDF (5 MB)

General overview

General Overview 2022 - International version

Edition 2022
Page format 209.9 x 297.0 mm
Number of pages 78
PDF (38 MB)

Certification booklet

Wilo-RexaNorm RE, Wilo-Rexa NORM, Wilo-RexaNorm RE (Bare shaft), Wilo-Rexa NORM (Bare shaft)

Article Number 6074550
Edition 2022-11
Page format 209.9 x 297.0 mm
Number of pages 40
PDF (13 MB)


Economical sewage transport in dry well installation

Page format 209.9 x 297.0 mm
Number of pages 4
PDF (512 KB)

Certificate REACH

REACH Regulation

Edition 2021-05
Page format 209.9 x 297.0 mm
Number of pages 4
PDF (212 KB)