Safety Precautions; Transport And Storage - Wilo -MultiVert-MVI 1-6 Serie Instrucciones De Instalación Y Funcionamiento

1.2.2 Series specifications
MVI 4 08
MVI (Multistage
Verticale stainless
steel (Inox) centrifugal
pump) design
Flow rate [m 3 /h]
(2-pole/50 Hz)
Number of impellers
in row
Steel grade:
1 -> 1.4301 (AISI 304)
3 -> 1.4404 (AISI 316 L)
Maximum permissible
working pressure (bar)
(P) VICTAULIC
Gaskets - EPDM (KTW/WRAS)
Gaskets - VITON
Mains voltage
3 ~ 400 V
1 ~ 230 V
50 Hz, 60 Hz frequency
2 or 4 pole motor
Manufacturer's key

2. Safety precautions

These instructions contain important information
which must be followed when installing and oper-
ating the pump. It is therefore imperative that they
be read by both the installer and the operator be-
fore the pump is installed or started up.
Both the general safety instructions in the 'Safety
precautions' section and those in subsequent sec-
tions indicated by danger symbols should be care-
fully observed.
2.1 Danger symbols used in these
operating instructions
Safety precautions in these operating instructions
which, if not followed, could cause personal injury
Safety precautions warning of danger due to elec-
tricity are indicated by the symbol:
Safety precautions which, if not followed, could
damage the pump or installation and cause it to
malfunction are indicated by the word:
WARNING!
2.2 Qualified Personnel
The personnel installing the pump must have the
appropriate qualifications for this work.
2.3 Risks incurred by failure to comply with the
safety precautions
Failure to comply with the safety precautions could
result in personal injury or damage to the pump or
WILO SE 11/2010
1 / 16 / E / 3 ~ 400 - 50 - 2 / XX / X
installation. Failure to comply with the safety pre-
cautions could also invalidate any claim for damages.
In particular, failure to comply with these safety
precautions could give rise, for example, to the
following risks:
• the failure of important parts of the pump or in-
stallation,
• personal injury due to electrical, mechanical and
bacteriological causes.
• material damage.
2.4 Safety precautions for the operator
Existing regulations for the prevention of accidents
must be followed. To prevent the risk of electric
shock or electrocution VDE regulations and those
of the local supply company must be followed.
2.5 Safety precautions for inspection and
installation
The operator must ensure that all inspection and
installation work is carried out by authorized and
qualified specialists who have carefully studied
these instructions. In principle, work should not be
carried out on a running pump or installation.
2.6 Unauthorized alterations and manufacture of
spare parts
Alterations to the pump or installation may only
be carried out with the manufacturer's consent.
The use of original spare parts and accessories
authorized by the manufacturer will ensure safety.
The use of any other parts may invalidate claims
invoking the liability of the manufacturer for any
consequences.
2.7 Improper use
The operational safety of the pump or installation
supplied can only be guaranteed if it is used in
accordance with paragraph 1 of the operating
instructions. The limits given in the catalogue or data
sheet must under no circumstances be exceeded.

3. Transport and Storage

During transport and in storage the
WARNING!
pump must be protected against
moisture, frost and mechanical damage.
The pump unit is to be transported with the shaft
horizontal. When storing, ensure that the pump
unit cannot overturn as a result of top-heaviness.
4. Description of product and accessories
4.1 Pump description
The pump is a multistage (2-24 stages) normal
suction vertical high pressure centrifugal pump
with an in-line design, i.e. the inlet and outlet pres-
sure glands are in a line. The pump is supplied in one
of two outlet designs:
PN 16: with welded oval flanges,
PN 25: with welded circular flanges or VICTAULIC
connection.
The pump (Fig. 1) stands on a grey cast iron pump
footplate which serves as a fixing base (13). The stage
casings (4) are in a multiple modular construction. The
impellers (10) are fitted on a single shaft (11). The
pressure casing (5) guarantees a fail-safe seal.
English
3