English (GB)
3
Product introduction
This booklet includes instructions for installation,
operation and maintenance of Grundfos SL1 and
SLV submersible sewage and wastewater pumps
with motors of 1.1 to 11 kW. Grundfos SL1 and SLV
sewage and wastewater pumps are designed for
pumping domestic, municipal and industrial sewage
and wastewater.
Two types of pumps are available:
•
SL1 sewage pumps with S-tube impeller
•
SLV sewage pumps with SuperVortex free-flow
impeller.
The pumps can be installed on an auto-coupling
system or stand freely on the bottom of a tank.
Grundfos SL1 and SLV pumps are designed with
S-tube or SuperVortex impellers to ensure reliable
and optimum operation.
The booklet also includes specific instructions for the
explosion-proof pumps.
Fig. 1
SL1 pump
Pumped liquids and intended use
SL1 and SLV pumps are designed for pumping these
liquids:
•
large quantities of drainage and surface water
•
domestic wastewater with discharge from toilets
•
wastewater with a high content of fibres
(SuperVortex impeller)
•
municipal and commercial sewage and
wastewater.
Operating conditions
SL1 and SLV pumps are suitable for the following
operating situations:
•
S1 operation
(continuous operation), the pump
must always be covered by the pumped liquid to
the top of the motor.
•
S3 operation
(intermittent operation), the pump
must always be covered by the pumped liquid up
to the top of the cable entry.
pH values
SL1 and SLV pumps in permanent installations can
be used for pumping liquids with the following pH
values:
1)
For fluctuating pH values, the range is pH 4 to
14.
Liquid temperature
0-40 °C.
TM
04
264
8
280
8
Pos. Description
1
Lifting bracket
2
Nameplate
3
Oil screws
4
Outlet flange
5
Cable plug
6
Clamp
7
Pump housing
1
5
2
6
4
3
7
Pump
type
Material
variant
Material
pH value
SL1/SLV
Standard
Cast-iron
impeller and
pump housing
6.5-14
1)
SLV
Q
Stainless-steel
impeller and
cast-iron pump
housing
6-14
1)
