ENGLISH
24
3.2 Construction features
Pump nameplate reports the following informations:
Manufacturer
Pump
type
Serial
number
Capacity
(m³/h)
Head
(meters)
Month/
year
of construction
Break Power (kW)
3.3 Applications
Submersed electric pumps are mainly employed in the
following applications:
Industrial and civil applications
Irrigation
systems
Water supply systems
Mining
Offshore
Nuclear and steam power stations
Fire-fighting
equipments
Motors are guaranteed for plant operation up to 20
bar. Maximum allowable water temperature in
standard constructions is 30°C. For higher
temperatures, please consult our Technical
Department.
The pumps should be used only for the applications
specified in par. 3.3.
In case of applications not specified on this manual,
please contact DAB PUMPS to check for pump
suitability, installation safety and pump life.
Before working on the pump, make sure the electric
components of the concerned installation are
disconnected from main power supply.
4. MANAGEMENT
4.1 Storage
During storage, please observe the following
precautions:
Store the pump in a closed, dry and airy
environment.
In case of long storage, protect with grease the
motor coupling flange against oxidation and rotate
periodically by hand the shaft to avoid possible
locking of the same.
All motors are filled with a water/ antifreeze
mixture to prevent internal freezing up to -30°C.
Motors should not be stored or installed with
lower temperatures or for periods longer than 12
months; however, if this is unavoidable, turn the
shaft by hand once a month.
If the motor has been stored for more than 12
months, disassemble it and check rotating parts
and thrust bearing. Just before installation, drain
completely the motor from the water/ antifreeze
mixture and fill it with clear water, following the
instructions reported on this manual.
Protect
cable
ends against humidity.
To avoid any damage to the electric cables, never
bend them with a curving radius than lower 6 times
their diameter.
Protect against direct sunlight the pump/ motor
group, the electric cables and, in case the pump will
be stored partially dismantled, the rubber parts and
the thrust bearings.
4.2 Transport
Before transportation, please perform the following
checks:
Weight of pump/ motor group.
Overall dimensions of pump/ motor group.
Suitability of lifting points.
Pumping units and their accessories are packed in
crates suited for transportation to avoid any damage on
the way.
However, we recommend to inspect carefully the group
at delivery.
The pump should be handled with equipment suited to
its weight and to the shape of its crate (see side
pictures1). Lifting by hand is allowed only for weights
lower than 20 kilograms.
Once unpacked, the pump must be handled using the
lifting points as shown in Figure 2.
Figure 1
Figure 2
