Product Description; Proper Use And Fields Of Application - Wilo EMU KS...Ex Serie Einbau- Und Betriebsanleitung

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be checked for smooth operation. The housing coat-
ings should be checked for damage.
Before start-up, the filling levels (oil, motor fill-
ing, etc) should be checked and topped up, if
necessary. Products filled with drinking water
should be completely filled before start-up!
Damaged coatings should be repaired immedi-
ately. Only a coating that is completely intact
fulfills the criteria for intended usage!
If these rules are observed, your product can be stored
for a longer period. Please remember that elastomer
parts and coatings become brittle over time. If the
product is to be stored for longer than 6 months, we
recommend checking these parts and replacing them
as necessary. If this is the case, please consult the
manufacturer.
3.4 Returning to the product
Products that are returned to the factory must be
properly packaged. In this context, properly means that
impurities have been removed from the product and
that it has been decontaminated, if it was used with
fluids that are hazardous to health. The packaging
must protect the product from damage during trans-
portation. If you have any questions please contact the
manufacturer!

4 Product description

The product has been manufactured with great care
and is subject to constant quality controls. Trouble-
free operation is guaranteed if it is installed and main-
tained correctly.

4.1 Proper use and fields of application

Wilo EMU KS... submersible motor pumps are suitable
for pumping:
• Waste water with impurities with max. Ø 6 mm (or up
to 45 mm for KS 12 and KS 20 pumps)
They are used in:
• Building and property drainage systems
• Environmental and waste water treatment technology
• Industrial and process technology
The submersible motor pumps must not be used for
pumping:
• Waste water with coarse impurities
• Sewage/feces
• Raw sewage
32
The Wilo EMU KS series is suitable for siphoning opera-
tion when used outside explosion hazard areas!
Beware of electrical current
When using the product in swimming pools or
other accessible pools, there is a risk of fatal
injury due to electrical current. Note the follow-
ing information:
Use is strictly forbidden if there are people in the
pool!
If there are no people in the pool, protective
measures must
DIN VDE 0100-702.46
national regulations).
The product is made from materials that are not
KTW approved. Furthermore, it can be used for
pumping waste water. Therefore, pumping drink-
ing water is strictly forbidden!
Proper use also includes observation of these instruc-
tions. Any other use is regarded as improper.
4.2 Construction
The Wilo EMU KS... is a floodable submersible motor
pump, which can be operated vertically as both a sta-
tionary and portable wet installation.
Fig. 1: Description
1 Cable
2 Handle
3 Motor housing
4.2.1 Hydraulics
The hydraulic housing and impeller are manufactured
from different materials. The discharge-side connec-
tion is designed as a vertical threaded flange with fixed
Storz coupling. Semi-open, multiple-channel impellers
are used.
The product is not self-suctioning, which means
that the pumped liquid must flow in on its own.
Materials:
• KS...: Hydraulic housing and impeller both manufac-
tured from gray cast iron
• KS 220: Hydraulic housing manufactured from alumi-
num and impeller from Abrasit
• KS...Ex: Hydraulic housing and impeller both manufac-
tured from gray cast iron
4.2.2 Motor
KS...
Self-cooling, oil-filled motors are used. The motor
housing is manufactured in aluminum (or gray cast iron
in the "GG" version)
The oil in the motor cools it. The waste heat is trans-
ferred via the housing components to the pumped liq-
uid. Units from size KS 24 upwards are equipped with
shroud cooling. All units can be put into continuous
operation when submerged and emerged.
be taken according to
(or the appropriate
4 Hydraulic housing
5 Discharge port
6 Motor jacket
WILO SE 05/2011 V4.1WE