E-Tech VS series 8" submersible pumps User Manual
Page 9
9
001
14017 09/2008
001
14017 06/2010
Fig. 1
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
2 .1 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 identification code
2 .2 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.
2 .3 Pumped liquids
Pumped liquids must be clean, compatible with pump
components and materials, without solid particles or
fibres.
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
3 .1 Positioning limits
m
If the pump has to be installed in a position
where it is accessible to people, any possibility
of contact with the coupling must be avoided.
The pump might for instance be equipped with a
protective shield.
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.
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.
001
14018 09/2008
001
14018 06/2010
Fig. 2
3 .2 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.
3 .3 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
m
Before starting to work on the pump, make sure
that the power supply has been disabled and
that it cannot be accidentally switched on.
4 .1 General remarks
The electrical connections should be carried out by an
authorised electrician according to the regulations in
Version completely in AISI 316
Number of stages
Rated flow rate m³/h
Type of pump
... 7
N
/
8
1 5
Version vollkommen aus AISI 316
Stufennummer
Nenndurchfluss m³/h
Pumpentyp
... 7
N
/
8
1 5
Version complètement en AISI 316
Numéro de stages
Débit nominal m³/h
Type de pompe
... 7
N
/
8
1 5
Versiòn completamente en AISI 316
Nùmero de estadios
Capacidad nominal m³/h
Tipo de bomba
... 7
N
/
8
1 5
Wersja wykonana całkowicie ze stali AISI 316
Liczba stopni
Przepływ znamionowy m³/h
Rodzaj pompy
... 7
N
/
8
1 5
Версия полностью из AISI 316
Количество ступеней
Номинальный расход, м³/ч
Тип насоса
... 7
N
/
8
1 5
Versione completamente in AISI 316
Numero di stadi
Portata nominale m³/h
Tipo di pompa
... 7
N
/
8
1 5
Version fuldstændigt i AISI 316
Antal trin
Nominel flowhastighed m³/h
Pumpetype
... 7
N
/
8
1 5
Versio AISI 316
Vaiheiden määrä
Nimellinen tilavuusvirta m³/h
Pumpun tyyppi
... 7
N
/
8
1 5
Έκδοση πλήρης από AISI 316
Αριθμός βαθμιδών
Μετρώμενος ρυθμός ροής m³/h
Τύπος αντλίας
... 7
N
/
8
1 5
Versie volledig van AISI 316
Aantal trappen
Nominale stromingssnelheid m³/u
Type pomp
... 7
N
/
8
1 5
Komplett versjon i AISI 316
Antall stadier
Rangert pumpeytelse m³/h
Type pumpe
... 7
N
/
8
1 5
Versão completamente em AISI 316
Número de estágios
Taxa do caudal nominal m³/h
Tipo de bomba
... 7
N
/
8
1 5
Version helt i AISI 316
Antal steg
Nominell flödeshastighet m³/h
Typ av pump
... 7
N
/
8
1 5