Wilo-EMU TR 14… – TR 28…

Special features/product advantages

  • Works reliably.
    Clogging-free operation with backward-curved incoming flow edge and self-cleaning helix hub.
  • Reduced costs.
    Quick and simple to install as a ground, wall or pipe fixation. Even in the smallest of space requirements.

Series description

Design

Compact directly driven submersible mixer

Application

  • Mixing of deposits and solids in rain spillway basin and pump sump
  • Destruction of floating sludge layers
  • Other areas of application in agriculture and water supply

Model Numbers

Example:Wilo-EMU TR 21.174-4/11 S10
TRSubmersible mixer
21x 10 = nominal propeller diameter in mm
174x 10 = propeller speed in rpm
4Number of poles
11x 10 = stator length in mm
S10Propeller code for welded propellers (without = PUR propeller)

Technical data

Equipment/function

  • Stationary installation on walls and floors
  • Flexible installation through the use of guide rail system or special pipe attachment
  • Can be swivelled vertically and horizontally during installation with guide rail system

Materials

  • Housing components: A 48 Class 35/40 B (EN-GJL-250)
  • Propeller: PUR or AISI 316TI (1.4571)
  • Propeller hub: AISI 316TI (1.4571)
  • Screwed connections: AISI 304 (1.4301) or AISI 316TI (1.4571)
  • Seal bushing: AISI 316TI (1.4571)

Description/design

Propeller

2-blade propeller with a nominal propeller diameter of 5.5 inch (140 mm) to 11 inch (280 mm). Non-ragging design made possible by backward-curved incoming flow edge and patented helix hub.

Motor

Wilo-submersible motor of the T-series with standard connection for an easy and efficient adaptation of the motor output. The motor heat is given off directly to the fluid via the housing. The winding is equipped with a temperature monitor. Large-sized grooved ball bearings ensure long service life of the motor bearings.

Sealing

Double shaft sealing with large-volume sealing chamber to collect leakage from the mechanical seal; available with external sealing chamber electrode upon request. On the motor and fluid side, a corrosion- and wear-resistant mechanical seal made of solid silicon carbide material is used. A seal bushing ensures long-term corrosion-protected fit of the mechanical seal.

Cable

The power cable is a type H07 cable for heavy mechanical loads. The power cable enters the motor housing through a water pressure-tight cable entry with strain relief and bend protection.

Configuration

A separate configuration must be carried out for each application to ensure optimum generation of fluid current. Carefully follow the instructions for the supplied configuration when installing the units.

Commissioning

Operating mode S1 - Continuous duty:

The submersible mixer must be immersed when operated. Surfacing the propeller is strictly prohibited. In the case of fluctuating fluid levels, the system should switch off automatically if the degree of water submersion drops below the minimum level. The power cables must be installed in a way that these cannot be drawn into the propeller!

Options

  • Special voltages
  • Thermistor temperature sensor
  • External sealing chamber control
  • Ceram C0 coating
  • Ex-rated to ATEX, FM or CSA

Accessories

Scope of delivery

  • Submersible mixer with mounted propeller hub and cable
  • Cable length per customer request
  • Accessories per customer request
  • Operating and maintenance manual

Product

Design

Prechamber

-

Gear chamber

-

Sealing chamber

directly driven

VFD operation

Single-stage planetary gear

-

Two-stage planetary gear

-

Sealing by mechanical seal on motor side

Sealing by rotary shaft seal on motor side

-

Sealing by mechanical seal on fluid side

Seal for rotary shaft seal on fluid side

-

Explosion protection

Application

Wet well installation, ground installation

Wet well installation, wall fixation

Guide rail system for wet well installation

Tripod for wet well installation

-

Materials

Cast propeller

-

Steel propeller

PUR propeller

PUR/GRP propeller

-

GRP propeller

-

Equipment/function

Motor temperature monitoring, bimetal

PTC motor temperature monitoring

º

Motor leakage monitoring

Sealing chamber monitoring

º

Propeller blades can be replaced individually

-

Product

PDF: Wilo-EMU TR 14… – TR 28…

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