Sound Pressure; Note On Conformity; Product Description; Intended Use And Fields Of Application - Wilo Rexa PRO Serie Instrucciones De Instalación Y Funcionamiento

PRODUCT DESCRIPTION

• Pumps that have been operated in dirty waste water
must be cleaned thoroughly before being used for
other fluids.
• Pumps that have been operated in sewage water
containing feces and/or fluids that are hazardous to
health must be decontaminated before being used
with other fluids.
Clarification must be sought as to whether the
pump can be used with another fluid at all.

2.7. Sound pressure

Depending on the size and performance (kW) of the
pump, it has a sound pressure level of approximately
70 dB (A) to 90 dB (A) during operation.
However, the actual sound pressure level depends
on several factors. These include, for example, the
installation depth, installation method, fixation of
accessories and piping, the duty point, immersion
depth, etc.
We recommend that the end user takes an addition-
al measurement at the workplace once the pump
is running at its duty point and under all operating
conditions.
CAUTION: Wear ear defenders!
According to applicable laws and regulations,
ear protection must be worn if the sound pres-
sure level is 85 dB(A) or more. The end user is
responsible for ensuring compliance with this
regulation.

2.8. Note on conformity

This product was developed and manufactured
in accordance with the applicable EU product
directives, to which all products sold in the EU must
conform.
This product therefore complies with the general
safety and health requirements of the European
Union relevant to the product, as well as the rele-
vant published
European standards and internationally recognized
German standards.
Since this product was not intended to be sold and
used in the European Union, it does not have a CE
marking.
It is therefore not permitted to sell it in the Euro-
pean Union.
3. Product description
The pump is manufactured with great care and is
subject to constant quality controls. Trouble-free
operation is guaranteed if it is installed and main-
tained correctly.
Installation and operating instructions Wilo-Rexa PRO

3.1. Intended use and fields of application

DANGER: electrical hazard
When using the pump in swimming pools or
other basins that can be entered, there is a risk
of electrocution. Note the following:
• Use is strictly forbidden if there are people in the
pool or basin!
• If there are no people in the pool or basin, pro-
tective measures must be taken in accordance
with DIN VDE 0100-702.46 (or the appropriate
national regulations).
DANGER: explosive fluids!
Pumping explosive fluids (e.g. gasoline, kero-
sene, etc.) is strictly prohibited. The pumps are
not designed for these fluids!
Wilo-Rexa PRO... submersible pumps are suitable
for pumping the following fluids, in intermittent or
permanent operation:
• Drainage and sewage
• Sewage containing feces
• Municipal and industrial wastewater
• Sludges with up to 8% dry matter (depending on
pump type)
The pumps can be used in building and site drainage
systems and in sumps and tanks.
The submersible pumps must not be used for
pumping the following:
• Potable water
• Fluids containing hard components such as stone,
wood, metal, sand, etc.
• Highly flammable and explosive fluids in pure form
.
Intended use also includes compliance with these
instructions. Any other use is regarded as improper
use.

3.2. Setup

The Wilo-Rexa pumps are submersible sewage
pumps that can be operated vertically in stationary
or portable wet well installation and vertically in
stationary dry well installation.
Fig. 1.: Description
1 Cable
2 Handle
3 Motor housing
4 Seal housing
3.2.1. Hydraulics
Rotodynamic hydraulics with vortex impeller, with
horizontal flange connection on the pressure side.
The hydraulics are not self-priming, in other
words, the fluid must flow in either under natural
pressure or under supply pressure.
US English
5 Hydraulics housing
6 Suction connection
7 Pressure connection
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