Wilo-Flumen EXCEL-TRE 20 … 40

Series description

Your advantages

  • Low cleaning effort: due to installation close to the ground, deposits are prevented during emptying of basins
  • Low clogging rate and reliable operation thanks to optimised hydraulics
  • Low-wearing, due to the use of stainless steel investment-cast propellers with the lowest cavitation tendency
  • A wide range of possible uses in diverse applications, even at high-interval running times
  • Reduction of the energy and operating costs due to the standard use of IE3 motors for the best possible thrust coefficient
  • High flexibility thanks to the most diverse installation options and accessories

The most effective solution for draining stormwater retention tanks and pump sumps.

The Wilo-Flumen EXCEL is the operationally reliable solution for draining stormwater retention tanks and pump sumps. It impresses with high-speed submersible mixers that are made of high quality stainless steel and installed close to the ground. They constantly generate sufficient turbulence and therefore reliably prevent solids from settling. This also minimises cleaning work when draining stormwater retention tanks and pump sumps. Even during periods of high rainfall and longer running times, the Wilo-Flumen EXCEL has a low clogging rate and is extremely reliable in operation. The new precision-cast stainless steel propellers prevent almost all cavitation, so that low-wearing operation is guaranteed at all times.


Fast running and compact submersible mixer, directly driven


  • Solids turbulence to prevent deposits in the stormwater retention tank and pump sump
  • Destruction of floating sludge layers


  • Thermal motor monitoring
  • Sealing chamber control (optional)
  • Ex rating (optional)

Scope of delivery

  • Submersible mixer with mounted propeller hub and cable
  • Cable length as per customer request
  • Fitted accessories depending on the installation type
  • Operating and maintenance manual

Type key


Wilo-Flumen EXCEL-TRE30.145-4/12REx S17


Submersible mixer, horizontal


Mixer with high efficiency motors


Mixer with asynchronous motors of motor efficiency class IE3/IE4


x10 = nominal propeller diameter in mm


x 10 = propeller speed in rpm


Number of poles


x 10 = stator length in mm


Motor version:

  • R = mixer version
  • V = mixer version with reduced power




Propeller code for special propeller (omitted for standard propeller)

Technical data

  • Mains connection: 3~400 V, 50 Hz
  • Submerged operating mode: S1
  • Protection class: IP68
  • Max. fluid temperature: 40 °C
  • Max. immersion depth: 20 m


  • Motor housing:
    • TRE 20: 1.4408
    • TRE 30, TRE 40: EN-GJL-250
  • Seal housing: 1.4408
  • Propellers: 1.4408
  • Seal:
    • On motor side: SiC/SiC (TRE 20), NBR (TRE 30, TRE 40)
    • Fluid side: SiC/SiC
  • Screwed connections: Stainless steel 1.4301 or 1.4571



3-bladed propeller with a nominal propeller diameter of 200 mm to 400 mm. Clogging-free design made possible by backward-curved incoming flow edge.


Submersible motor of the TE-series (surface-cooled high efficiency motor) with standard connection for an easy and efficient adaptation of the motor power. The motor heat is given off directly to the fluid via the housing. The winding is equipped with a temperature monitor. Large grooved ball bearings ensure long service life of the motor bearings. The motors comply with the IE3/IE4 classification (derived from IEC 60034-30).


Double shaft sealing with large-volume sealing chamber to collect leakage from the mechanical seal; available with external pencil electrode on request. A corrosion- and wear-resistant mechanical seal is used on the fluid side. The seal on the motor side depends on the type:

  • TRE 20: corrosion-resistant and wear-resistant mechanical seal
  • TRE 30, TRE 40: Rotary shaft seal


Longitudinally watertight connection cable for strong mechanical loads. The connection cable enters the motor housing through a water pressure-tight cable inlet with strain relief and bend protection.


REACH regulation

Edition 2020-08
Page format 209.9 x 296.7 mm
Number of pages 4

PDF (1 MB)


Wilo Submersible Mixers

Page format 209.9 x 297.0 mm
Number of pages 20

PDF (2 MB)


Biological treatment with efficiency.

Page format 209.9 x 297.0 mm
Number of pages 20

PDF (12 MB)


Wilo-Flumen EXCEL and Wilo-Flumen OPTI

Page format 209.9 x 297.0 mm
Number of pages 4

PDF (955 kB)


CE-Booklet Wilo-EMU TR(E) / Wilo-Flumen OPTI-TR / Wilo-Flumen EXCEL-TRE / Wilo-Sevio MIX BG / Wilo-Sevio FLOW BG

Article Number 6074694
Edition 2019-02
Version number 05
Page format 209.9 x 297.0 mm
Number of pages 36

PDF (3 MB)


General overview 2020 International version

Edition 2020
Version number 1
Page format 209.9 x 297.0 mm
Number of pages 78

PDF (48 MB)



PDF: Wilo-Flumen EXCEL-TRE 20 … 40


Page selection

Format selection

Optional information

You can enter any personal information that you want to be displayed in the header.