POMPE SOMMERSE 4"- 6" E 8"
4"- 6" AND 8" SUBMERSIBLE PUMPS
TAUCHPUMPEN 4"- 6" UND 8"
POMPES SUBMERSIBLES 4"- 6" ET 8"
BOMBAS SUMERGIBLES 4"- 6" Y 8"
POMPY GŁĘBINOWE 4"- 6" I 8"
4"- 6" OG 8" UNDERVANDSPUMPER
UPPOPUMPUT, 4"- 6" JA 8"
ΥΠΟΒΡΥΧΙΕΣ ΑΝΤΛΙΕΣ 4"- 6" ΚΑΙ 8"
DOMPELPOMPEN, 4"- 6" EN 8"
4"- 6" OG 8" NEDSENKBARE PUMPER
BOMBAS SUBMERSÍVEIS DE 4"- 6" E 8"
4 - 6 OCH 8 TUMS DRÄNKBARA PUMPAR
4"- 6" И 8" ПОГРУЖНЫЕ НАСОСЫ
Manuale d’uso e installazione
Use and installation instructions
Gebrauchs- und Aufstellungshandbuch
Manuel pour l’emploi et installation
Manual de empleo e instalación
Instrukcja obsługi i instalacji
Brugs- og installationsanvisninger
Käyttö- ja asennus-ohjeet
Οδηγίες χρήσης και εγκατάστασης
Gebruiks- en installatie-instructies
Instruks for bruk og installasjon
Instruções de utilização e instalação
Instruktioner för användning och installation
Руководство по монтажу и эксплуатации
ï EN ð
These operating instructions contain relevant information
and precautionary notes. Please read the manual
carefully before assembling, electrical connection and
commissioning.
General Observations
This pump has been developed according to the
most advanced and recent technology, as well as in
compliance with the regulations in force. Moreover, the
pump is subject to a permanent quality control.
These operating instructions are intended to help you
better understand the pump operation and to show you
its possible applications.
The manual contains important information necessary
for reliable and protable operation. Compliance with the
operating instructions is of vital importance to ensure the
reliability and a long service life of the pump, as well as to
avoid any accident risk due to improper use.
This pump must not be operated beyond the limit values
quoted in the technical specication. Any indication
concerning the nature, the density, the temperature, and
the rate ow of the pumped liquid, as well as the rotation
speed, the pressure and the power of the motor shall be
observed. Any other instruction contained in this manual
or in the documentation enclosed to the agreement shall
be observed as well.
The rating plate bears the type series, the main
operation data, and the serial number. Please, quote this
information in all request of intervention or assistance,
and when ordering spare parts.
Safety regulations
This manual contains essential instructions that must be
observed during installation, operation and maintenance.
Therefore, this operating handbook must be read and
understood both by the person in charge of assembling
the machine and by all qualied personnel appointed by
the responsible for installation to perform its operation.
These operating instructions must always be available on
use site of the machine.
Marking of coded instructions within the manual
The safety instructions contained in this manual, whose
inobservance might cause hazards to person, are marked
with the general hazard sign, i.e.:
(hazard sign)
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Risks due to inobservance of safety instructions
Inobservance of safety instructions may cause physical
and material damages, as well as environmental pollution.
Non-compliance with safety instructions will also lead to
the complete loss of any warranty right.
In particular, the inobservance of the above mentioned
instructions may for example result in:
• failure of main machine/unit functions;
• failure of maintenance procedures;
• hazard of electrical, mechanical or chemical nature.
Safety regulations
All safety instructions contained in this manual shall be
observed, as well as any other national regulation on
accident prevention, and any internal regulation on the
use of machineries and on occupational safety.
Safety instructions for control, maintenance, and
operation works
The person in charge must verify that all maintenance,
inspection and installation works are performed by
qualied and authorised personnel. Before performing
these works, the personnel must be aware of the content
of this manual.
All interventions on the machines must be carried out
only during total standstill of the mentioned machines.
Strictly observe the shutdown procedure described in this
manual.
Pumps conveying uids hazardous to health must be
decontaminated.
Immediately after completion of work, all safety and
protective devices must be re-installed and/or re-enabled.
Modication and manufacture of Spare parts
Any reconstruction or alteration of the machine must
be performed by the manufacturer before being carried
out. Original spare parts and accessories supplied by
the manufacturer ensure safety. The manufacturer is not
in any case liable for damages due to the use of nonoriginal spare parts!
1 DELIVERY AND STORAGE
11 Delivery
These submersible pumps are supplied in their own
original packing in which they should remain until
installation.
Avoid the pump to be bent when it is not packed, since
this may cause the misalignment and the damage of the
pump itself.
The loose data plate supplied with the pump should be
xed close to the electric control equipment.
The pump shall not be exposed to unnecessary impacts
and crashes.
12 Storage and Handling
Storage Temperature:
Pump: from -20°C to +60°C
The pump should not be exposed to direct sunlight.
If the pump has not been packed, it shall be stored
horizontally, adequately supported, or vertically, to
prevent the misalignment of the pump. During storage,
the pump can be supported as shown in Fig. 1.
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Fig. 1
Type of pump
Version vollkommen aus AISI 316
Stufennummer
Nenndurchfluss m³/h
Pumpentyp
... 7 N
/
8
1 5
... 7 N
/
8
1 5
If the pump is not used in vertical position, both the pump
side and the motor side must be supported. Note that the
centre of gravity will vary according to the pump type.
2 GENERAL DATA
21 General description
The submersible pumps are multistage pumps working
with counterclockwise rotation direction (observing from
the delivery side) directly coupled to special submersible
motors (according to NEMA standards).
Pump identication code
... 7 N
1 5
/
8
Version completely in AISI 316
Number of stages
Rated flow rate m³/h
The pump is suitable for both vertical and horizontal
installation, however, the pump should never be installed
inclined downwards, see Fig. 2.
Note: During operation, the suction support must always
be completely submerged.
00114017 06/2010
In special conditions, it may be necessary to submerge
the pump even deeper, depending on the operation
conditions of the pump, as well as on temperature and
NPSH values.
22 Applications
These submersible pumps are designed for a wide range
of applications, such as the supply of water to private
homes, water systems and industries.
These pumps are necessary in case of lowering of the
groundwater level, as well as for pressure increase.
Submerge the pump completely under the water level
both if it is installed horizontally and vertically. See
paragraph 3.1 Positioning Limits.
23 Pumped liquids
Pumped liquids must be clean, compatible with pump
components and materials, without solid particles or
bres.
The maximum sand content in the water must not exceed
50 g/m³. A greater sand content in the water reduces the
service life of the pump and increases the risk of blocking.
When pumping liquids with a density higher than that of
water, motors with correspondingly higher outputs must
be used.
3 INSTALLATION / PREPARATION
31 Positioning limits
If the pump has to be installed in a position
where it is accessible to people, any possibility
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of contact with the coupling must be avoided.
The pump might for instance be equipped with a
protective shield.
Fig. 2
32 Diameter of Pump/Motor
Check in the technical catalog the maximum diameter of
the pump and the pump with motor.
Verify the borehole with an inside calliper to ensure
unobstructed passage.
33 Check valve on the delivering piping
The pump is equipped with an embedded check valve
in the delivery opening. However, it is recommended,
especially if the pump directly feeds a distribution network
subject to pressure, to install another check valve on
the delivery piping at no more than 10 meters from the
minimum well level. (If this latter is not known, use the
delivery opening as minimum level).
Its presence reduces hydraulic shocks due to starts and
stops.
4 ELECTRICAL CONNECTIONS
Before starting to work on the pump, make sure
that the power supply has been disabled and
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that it cannot be accidentally switched on.
41 General remarks
The electrical connections should be carried out by an
authorised electrician according to the regulations in
00114018 06/2010
9
force.
Supply voltage, current and cos φ are quoted on the
motor plate that has to be kept within the electrical panel.
The motor must be earthed and connected to
the electric panel.
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4.2 Verication of Rotation Direction
When the pump has been connected to the power supply,
establish the current direction of rotation as follows:
1. Start the pump and control the head provided with
gate valve not fully closed.
2. Stop the pump and interchange two of the phase
connections.
3. Start the pump and repeat step 1. with the gate valve
in the same position.
4. Stop the pump.
Compare the results obtained after performing steps 1
and 3. The correct connection is the one that gives the
highest head.
Note: The pump must not be started until the suction
support has been completely submerged.
5 PUMP INSTALLATION
Before starting any work on the pump or on the
motor, make sure that the power supply has
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been disabled and that it cannot be accidentally
switched on.
51 Assembling of the pump with the motor
Place the pump on the motor in order that they are
positioned along the same axis and insert the motor shaft
in the pump shaft joint: the coupling must not be forced.
Tighten the screws or the nuts that diagonally x the
pump-motor anges with a driving torque as quoted in
the following table.
Motor type Screw
Motor 4" M8 18
Motor 6" M12 100
Motor 8" M16 200
52 Delivery piping
If the pump is already coupled to the delivery piping and
you use a chain pipe wrench, tighten the pump, holding it
only by the delivery opening.
The threaded pipes must be connected in such a way as
to support the unscrewing action due to the starting and
stopping of the pump.
The thread of the pipe, which has to be screwed into the
pump, should not be longer than the thread of the pump.
After screwing the pipe into the delivery opening, tighten
the screw assembled to avoid the loosening of the rst
section of the pipe, see Fig. 3.
When plastic pipes are used, the pump should be
secured by an unloaded rope to be fastened to the
Driving torque
Nm
delivery opening, see Fig. 3.
00114016 06/2010
Fig. 3
5.3 Cable tting
Use cable clips every 3 meters to x the cable to the
support rope or to the delivery pipe.
Use plastic cable clips as shown in Fig. 4.
Once the cable has been fastened, cut off the remaining
part of the clip.
3mt
00114019 06/2010
Fig. 4
In the case that the tube is plastic, it must leave the
electric cable and the cable support not in tension to
prevent the elongation of the tube, due to the weight of
the water contained in it, tearing the electric cable.
10
When anged pipes are used, the cable clips must be
positioned before and after each ange.
54 Lowering of the pump
Verify that the well is not clogged along its total length.
Lower the pump into the well, paying attention not to
damage the electric cable.
Note: Do not lower the pump by means of the electric
cable.
55 Installation depth
The dynamic water level must always be above the
suction support of the pump, see paragraph 3.1
Positioning Limits and Fig. 5.
The minimum safety margin shall be 1 meter.
Lc
Lt
Lb
Ld
La
clean again, since otherwise the pump parts and the nonreturn valve may be damaged.
If the pump ow rate is higher than that of the well,
the use of a protection device against dry operation is
recommended.
Without any protection against dry operation, the water
level falls under the suction support and the pump sucks
air. In the long term, this causes damages due to poor
cooling and lubrication.
7 MAINTENANCE AND SERVICE
The pumps are maintenance-free.
All pumps are easy to service.
Use the Service Kits and the special tools for maintenance.
The Service Manual is available upon request.
Before performing any operation on the pump
or on the motor, verify that the power supply
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is disabled and that it cannot accidentally be
enabled again.
8 DISPOSAL
This product or parts of it must be disposed using the
local public or private waste collection service.
00114015 06/2010
Fig. 5
La: Minimum installation depth
(suggested: minimum 1 mt).
Lb: Static water level
Lc: Dynamic water level
Ld: Difference between static and dynamic level
Lt: Installation depth
Block the delivery pipe with proper hangers on the well
head.
Loosen the support rope and x it to the groundwork.
6 START-UP
When the pump has been installed and submerged, it can
be started with the gate valve closed to 1/3.
Check the direction of rotation as described in section 4.2
Verication of Rotation Direction.
If there are impurities in the water, the gate valve should
be opened gradually until the water becomes clearer. The
pump should not be stopped until the water is completely
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9 TROUBLESHOOTING
Zero ow rate
●
Poor ow rate
●
Poor pressure
●
The pump starts and stops too frequently
●
Excessive current absorbed by the electro-pump
●
Possible causes related to the pump
(Motor and panel excluded)
██ █ Well water level too low Wait until well water level is restored, or if
██ Suction screen clogged Pull out the assembly and clean it
██ Delivery valve closed or blocked Find and replace the defective valve
█ █ Pump silted up Pull out the assembly and clean it
██ █ Wrong direction of rotation Carry out instructions as in 4.2
█ █ Pump capacity exceeds well capacity Replace pump with one of lower capacity
█ Leaks in the system Locate leaks and repair them
█ Worn pump Pull out the assembly and overhaul it
█ Pressure switch or level control improperly set Adjust setting
█ Tank too small Replace tank with a larger one
█ Mechanical friction Pull out the pump and overhaul it
Solution
possible, lower the pump further
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