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Wilo-Flumen EXCEL-TRE

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.

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

Minimal clogging, minimal cleaning work.

The most effective solution

for mixing and cleaning stormwater retention tanks and pump sumps. Solutions that deliver more, reliably.

Wilo-Flumen EXCEL Vorteile

Low energy costs

Reduced energy and operating costs through use of IE3 motors as standard in EXCEL for an optimal thrust coefficient (based on IEC TS 60034-30-2).

A wide range of possible uses

The Wilo-Flumen EXCEL and Wilo-Flumen OPTI are suitable for a wide range of possible uses in diverse applications, even at high running times.

Minimal clogging

Low clogging rate and reliable operation thanks to optimised hydraulics.

High flexibility

The Wilo-Flumen EXCEL and Wilo-Flumen OPTI can also be used in varying operating statuses and thus ensure significant energy savings.

Low cleaning work

With the Wilo-Flumen EXCEL and Wilo-Flumen OPTI, users benefit from low cleaning work as installation close to the basin floor prevents deposits when emptying basins.

Low-wearing

The Wilo-Flumen EXCEL and OPTI are low-wearing, due to the use of stainless steel investment-cast propellers with the lowest cavitation tendency.

Key Facts

Max. thrust (N)

200-950

Number of blades

2-3

Nominal diameter (mm)

200-400

Rated speed (rpm)

740-1450

Additional solutions for the wastewater treatment plant

Slow-running submersible mixer

Wilo-EMU TRE 326-3

Wilo submersible mixers for flow dynamic requirements.

Wilo-EMU TRE 312

Wilo submersible mixers for flow dynamic requirements.

Wilo-Sevio ELASTOX

Aeration system for optimised oxygen entry.

A reference from Switzerland

Modernising submersible mixers.

Why the Wilo-Flumen EXCEL?

Several rainwater basins or stacks are used for mixers in Switzerland. When designing the new Flumen EXCEL mixer series, special care was taken to ensure low-clogging mixing operation, as the system process requires a high level of operational reliability.

Challenge: Long-lasting operation

Solution: Tried and tested standard motors can also be used especially for highly viscous mixing materials – as well as the new high efficiency motors.

Challenge: Uninterrupted, clogging-free operation

Solution: Low clogging rate and reliable operation thanks to optimised hydraulics.

Challenge: Sufficient mixing on the base of the tank

Solution: Optimised propeller and optimised seal housing.

Challenge: Low cleaning work

Solution: Users benefit from the low cleaning work due to prevention of deposit formation through installation close to the basin floor.


Numerical flow simulations – CFD simulations

Optimal system operation using modern design methods and system expertise.

Configuration

  • The correct system-dependent design and installation of the mechanical technology is a basic requirement for efficient and operationally-reliable biological sewage treatment.
  • During the design phase, we scrutinise our products for whether they can optimally fulfil your system requirements. For reliable system operation and minimum energy requirements. · Modern software-aided dimensioning tools and methods.
  • CFD simulation (numerical flow simulation dimensioning method) for selecting the right technology for your system.
  • Exact analysis of system-specific conditions enables possible weaknesses to be detected in good time and optimisation approaches to be developed.

Aeration

An energy-efficient aeration system with fine-bubble aerators ensures optimised oxygen entry.

Mixer

Wilo submersible mixers guarantee deposit-free operation and homogenous distribution of the activated sludge. Perfectly designed in accordance with flow technology requirements.

System expertise

During the design phase, we scrutinise our products for whether they can optimally fulfil your system requirements. For reliable operation at minimum energy requirements.


FAQ

How long can the mixer be operated on draining?

As long as the minimum submersion of 30 centimetres is maintained, i.e. when the mixer is still covered with enough water. The small propeller diameter and installation close to the basin floor are beneficial in this regard.

How many mixers do I need in my stormwater retention tank?

Wilo’s team of specialists perform the dimensioning according to customer-specific requirements.

Which documents, facts, figures and data do we need fordimensioning?

We supply you with a checklist for all necessary information which you can use as a guide.

I am dissatisfied with the cleaning performance of my existing system. What can I do?

Contact Wilo. The full range of customer services is available to you daily across Germany from 7 am to 6 pm – including weekends and public holidays. You can contact the Wilo Service Centre by telephone on +49 231 4102 7900 or by e-mail to kundendienst@wilo.com

Can Wilo-Flumen EXCEL also be installed in existing systems?

Not only can Wilo-Flumen EXCEL and OPTI be installed in existing systems, but it is even possible to electrically integrate them with the switch cabinet currently in use This requires system-specific dimensioning by the experts at Wilo.

Which applications are Wilo-Flumen EXCEL and Wilo-Flumen OPTI suitable for?

- Stormwater retention tanks - Pump sump - Mixing and buffer basins - Small sludge activation plants - Special sludge tanks

Are high-efficiency mixer versions available?

All mixers in the Wilo-Flumen EXCEL series comply with EU-wide efficiency class IE3.

The Wilo-Assistant - The app for everyone

The redesigned Wilo-Assistant app makes the entire world of high-efficiency pump technology available on smartphones and tablets for HVAC installers, technical building equipment consultants and pump operators.

The new design and the intuitive user experience provide even better support for your day-to-day work. New functions and connective solutions add to the range of features already offered by the previous Wilo-Assistant. That way, users can find what they need even faster, and get support with:

- Consultation and selection

- Customer consultation

- Installation and commissioning

- Remote control and maintenance

Download on the App Store (iOS)Android App on Google play

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.

Construction

Fast running and compact submersible mixer, directly driven

Application

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

Equipment/function

  • 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

E.g.:

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

Flumen

Submersible mixer, horizontal

EXCEL

Mixer with high efficiency motors

TRE

Mixer with asynchronous motors of motor efficiency class IE3/IE4

30

x10 = nominal propeller diameter in mm

145

x 10 = propeller speed in rpm

4

Number of poles

12

x 10 = stator length in mm

R

Motor version:

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

Ex

Ex-rated

S17

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

Materials

  • Motor housing: 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

Description/construction

Propeller

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.

Motor

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).

Seal

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

Cable

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.

Downloads

REACH regulation

Edition 2018-10
Page format 209.9 x 296.7 mm
Number of pages 4

PDF (581 kB)

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Wilo-Flumen EXCEL and Wilo-Flumen OPTI

Page format 226.5 x 313.6 mm
Number of pages 4

PDF (11 MB)

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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 32

PDF (701 kB)

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General overview 2019 International version

Article Number 2200591
Edition 2018
Version number 1
Page format 209.9 x 297.0 mm
Number of pages 74

PDF (42 MB)

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