2.2 Applications
SL1.50.65 pumps are designed for pumping these
liquids:
•
large quantities of drainage and surface water
•
domestic wastewater with discharge from toilets
•
wastewater from commercial buildings without
discharge from toilets
•
sludge-containing industrial wastewater
•
industrial process water.
SLV.65.65 pumps are designed for pumping these
liquids:
•
surface water with abrasive particles
•
municipal sewage
•
sewage from commercial buildings
•
sludge- or fibre-containing industrial wastewater.
The compact design makes the pumps suitable for
both temporary and permanent installation.
The pumps can be installed on an auto-coupling
system or stand freely on the bottom of the pit.
2.3 Operating conditions
The SL1, SLV AUTO
ADAPT
intermittent operation (S3). When completely
submerged, the pumps can also operate
continuously (S1). See section
modes.
Installation depth
Maximum 10 metres below liquid level.
Operating pressure
Maximum 6 bar.
Number of starts per hour
Maximum 30.
pH value
Pumps in permanent installations can be used for
pumping liquids with a pH value between 4 and 10.
Liquid temperature
0-40 °C.
For short periods (maximum 10 minutes) a
temperature of up to 60 °C is allowed (standard
versions only).
Warning
Explosion-proof pumps must never pump
liquids with a temperature higher than 40
°C.
Density of pumped liquid
3
Maximum 1000 kg/m
.
In the case of higher values, see Grundfos Product
Center on www.grundfos.com, or contact Grundfos.
pumps are designed for
10.2 Operating
3. Delivery and handling
The pump may be transported and stored in a
vertical or horizontal position. Make sure that the
pump cannot roll or fall over.
Check that the protective cap for the level sensor
has not been damaged during transportation. See
fig.
1
(pos. 7). If the protective cap is defective,
contact your nearest Grundfos company.
3.1 Transportation
All lifting equipment must be rated for the purpose
and checked for damage before any attempts to lift
the pump. The lifting equipment rating must under no
circumstances be exceeded. The pump weight is
stated on the pump nameplate.
Warning
Always lift the pump by its lifting bracket or
by means of a forklift truck if the pump is
fixed to a pallet. Never lift the pump by
means of the motor cable or the hose/pipe.
The polyurethane-embedded plug prevents water
from penetrating into the motor via the motor cable.
3.2 Storage
For long periods of storage, protect the pump against
moisture, heat and temperatures below -25 °C.
After a long period of storage, the pump must be
inspected before it is put into operation. Make sure
that the impeller can rotate freely. Pay special
attention to the shaft seal, cable entry and sensors.
3.3 Lifting
When lifting the pump, use the right lifting point to
keep the pump balanced. Place the lifting chain hook
in point A for auto-coupling installations and in point
B for other installations. See fig. 3.
Fig. 3
Lifting points
7