General Description; Description Of The Product - salmson ALTI-NEXIS-V Manual De Instrucciones

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5.4 Accessories (compulsory).
• Diaphragm pressure tank must be sized accord-
ing to installation.
• Dry running sensor:
- on a collection tank -> float switch.
- on public water mains -> pressure switch.
6. Description and operating

6.1 General description

The booster is a compact installation that is supplied
completely piped-up and ready to connect. The only
connections that have to be made are for suction and
discharge and also the power mains.
Every accessory ordered is delivered separately.
The relevant instructions or standards must be
observed for the connection to the public water sup-
ply mains. Regulations from the water companies
must be included where appropriate. Local conditions
(e.g. a supply pressure that is too high or fluctuates
considerably and which might require the installation
of a pressure relief valve) must also be observed.

6.2 Description of the product

6.2.1 Mechanic and hydraulic installation compo-
nents (Fig. 1a, 1b, 1c, 1d and Fig. 5)
- The compact installation is mounted on a steel
base frame with vibration absorbers (pos. 3). It
consists of a group of 2 to 4 high pressure cen-
trifugal pumps (pos. 1), connected to suction by
means of flange (pos. 4) and a delivery manifold
pipe (pos. 5).
- A shut-off valve (pos. 6) is mounted on the suc-
tion and delivery side of each pump, and a non-
return valve (pos. 7) on the delivery side of the
pump. For the 52 m
is fitting between the shut-off valve and the non-
return valve (Fig. 3). A unit composed of a pres-
sure sensor (Fig. 5, pos. 8), pressure switch (Fig. 5,
pos. 15), drain-cock (Fig. 5, pos. 14) and a shut off
valve (Fig. 5, pos. 16) is mounted on the discharge
manifold.
ATTENTION! When pumps are running, the shut
off valve (pos. 16) should be open.
- As an option, a low water protection device (Fig.
4, pos. 14) shall be retrofitted on the suction
manifold when supplied from the public water
mains or a float switch shall be mounted when
supplied from a collection tank.
- The control box (pos. 2) is mounted on the base
frame by means of a stand (pos. 9). All electric
components are delivered as ready-wired. In the
case of large installation, the control cabinet is
delivered separately (Fig. 1b) and ready-wired. The
present installation and operating instruction only
describe the complete installation of the booster.
6.2.2 High pressure centrifugal pumps (pos. 1)
- Different types of multistage high pressure cen-
trifugal pumps are installed in the booster
20
3 /h, a flanged nipple (pos. 12)
depending on the intended use and the perform-
ance parameters required. The number of these
pumps can vary between 2 and 4. The attached
installation and operating instruction provides
further information about the pumps.
6.2.3 Control box (pos. 2)
- Different control and regulation boxes of differ-
ent constructions (with or without speed con-
verter) can be integrated and delivered to acti-
vate and control the booster. The attached
installation and operating instruction provides
further information about the control box.
6.2.4 Suction (pos. 4) and discharge (pos. 5) mani-
folds
- Please find hereafter manifold diameters accord-
ing to flows and number of pumps that compose
the booster.
Booster Number of pumps
2
ALTI-NEXIS V/VE
3
4 m 3 /h
4
2
ALTI-NEXIS V/VE
3
6 m 3 /h
4
2
ALTI-NEXIS V/VE
3
10 m 3 /h
4
2
ALTI-NEXIS V/VE
3
16 m 3 /h
4
2
ALTI-NEXIS V/VE
3
22 m 3 /h
4
2
ALTI-NEXIS V/VE
3
36 m 3 /h
4
2
ALTI-NEXIS V/VE
3
52 m 3 /h
4
6.3 Function of the booster
The boosters are fitted with non self-priming, multi-
stage high pressure centrifugal pumps as standard.
The pumps increases the pressure and delivers water
to the supply network via the delivery manifold pipe.
In this purpose they are switched on and off or con-
trolled depending on the pressure. The pressure sen-
sor continuously measures the actual pressure value,
converts it into a current signal and transmits it to the
control box. Depending on demand and type of con-
trol system, the control box starts, or stops the pumps
or changes the speed of rotation of one or several
pumps until the preset control parameters are
reached (a more precise description of the type of
control system and control process is mentioned in
the installation and operating instruction of the con-
trol box).
POMPES SALMSON SAS 01/2012
Ø Manifolds
1"1/2
1"1/2(V) / 2"(VE)
2"(V) / 2"1/2(VE)
2"
2"1/2
2"1/2
2"1/2
2"1/2(V) / 3"(VE)
3"
2"1/2(V) / 3"(VE)
3"(V) / DN100(VE)
DN100
3"
DN100
DN125
DN100
DN125
DN150
DN125
DN150
DN200