Wilo MultiVert MVI 16 Series, Installation And Operating Instructions Manual

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ENGLISH
10
1.2.2 Type key
MVI 16 08 3 / 16 / E / 3 - 400 - 50 - 2 / XX / X
Design MVI
( M ultistage, v ertic.
Special steel-( I nox-)
centrifugal pump)
Flow rate [m
3
/h]
(2-pole/ 50 Hz)
Number of
impellers in row
Material quality:
Hydraulic / Base
1
R
unoccupied
2
R
1.4404 / 1.4408 (AISI 316 L)
3
R
1.4301 / GG25 (coated)
maximum permissible working
pressure [bar] PN 16 or PN 25
EPDM seals (KTW/WRAS)
VITON seals
Main voltage 3 ~ 400 V
3 ~ 230 V
50 Hz or 60 Hz frequency
2- or 4-pole motor
Manufacturer’s key
2 Safety
These instructions contain important information which must be
followed when installing and operating the pump. These operating
instructions must therefore be read before assembly and commis-
sioning by the installer and the responsible operator. Both the general
safety instructions in the “Safety precautions” section and those in
subsequent sections indicated by danger symbols should be carefully
observed.
2.1 Danger symbols used in these operating instructions
Safety precautions in these operating instructions which, if not
followed, could cause personal injury are indicated by the symbol:
when warning of electrical voltage with
The following symbol is used to indicate that by ignoring the relevant
safety instructions, damage could be caused to the pump/machinery
and its functions:
2.2 Staff training
The personnel installing the pump must have the appropriate qualifica-
tions 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 installation. Failure to comply with the
safety precautions 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:
– Failure of important pump or machinery functions,
– Personal injury due to electrical, mechanical and bacteriological
causes.
– Damage to property.
WARNING!
2.4 Safety precautions for the operator
Existing regulations for the prevention of accidents must be followed.
Dangers caused by electrical energy are to be excluded. Directives
issued by the VDE [German Association of Electrical Engineers] and
the local electricity supply companies are to be observed.
2.5 Safety information for inspection and assembly
The operator is responsible for ensuring that inspection and assembly
are carried out by authorised and qualified personnel who have
studied the operating instructions closely.
Work on the pump/machinery should only be carried out when the
machine has been brought to a standstill.
2.6 Unauthorized modification and manufacture of spare parts
Changes to the pump/machinery may only be made in agreement with
the manufacturer. The use of original spare parts and accessories
authorised 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 operating safety of the pump or installation supplied can only be
guaranteed if it is used in accordance with paragraph 1 of the operat-
ing instructions. The limiting values given in the catalogue or data
sheet must neither be exceeded nor allowed to fall below those speci-
fied.
3 Transport and storage
During transport and in storage the 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 Product and accessory description
4.1 The pumps
The pump is a multistage (1–16 stages) normal suction vertical high
pressure centrifugal pump with an in-line design, i.e. the inlet and out-
let pressure glands are in a line. The pump is available in 2 pressure
versions, PN 16 and PN 25 with integrally cast circular flanges.
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.
All parts that come into contact with the medium, such as stage hous-
ings, impellers and pressure casings are made of chromium nickel
steel, the pump footplate (Pos. 12) with flanges (Pos. 6) of coated
GG 25 (up to 85 °C) or of chromium nickel steel (on request). The shaft
hole through the pump casing is sealed with an axial face seal (3).
MVI32C, MVI52C, MVI70 and MVI95 are equipped
with a cartridge system in order to ease standard
mechanical seal replacement without disassemb-
ling the hydraulic parts.
“Spacer” feature allows not to disassemble motor on MVI32C,
MVI52C, MVI70 and MVI95 when removing mechanical seal cartridge.
The pump and motor shafts are linked together by a clutch (9). All
parts of the drinking water version (version E) which are in contact with
the fluid have been cleared by KTW and WRAS and are therefore sui-
table for use with drinking water.
The speed of the pump can be controlled when connected to a
frequency converter (see paragraph 5.3).
4.2 Products delivered
– high pressure centrifugal pump
WARNING!