OWNER'S MANUAL
VR Series-
Vertical Multistage Pump
Before any procedure of installation, handling
or start of the pump, read the instructions
contained in this manual carefully. Follow step
by step the rules for the correct assembly of
the components and observe the provisions
of the country of use concerning the best
practice of the state of the art.
1. GENERAL DATA
1.1 General description
VR pumps are vertical multistage centrifugal pumps.
Models 3VR, 5VR and 9VR operate with clockwise
rotation when observed from above. Models 16VR
operate counter-clockwise when observed from above.
(Exceptions can exist in high pressure assemblies where
one of the two pumps has operation and hydraulics
inverted.) These pumps are not self-priming. Pump
intake and discharge are located on the same axis, at
the bottom of the pump. A standard mechanical seal in
the shaft inlet provides separation of the electric motor
from the pumped product. Mounting dimensions can be
found on the dimensions table, page 5.
1.2 Flanges available:
F- Round flanges on body type PN25: the pump is
supplied with joints, bolts and counterflanges.
T- Oval flanges on body type PN16: the pump is supplied
with oval counterflanges for pipe to be screwed, joints
and bolts (Optional accessories).
V-
Connections with rapid fittings type “VICTAULIC”:
the pump is supplied with the collars(Optional
accessories).
C-
Connections with round fittings type CLAMP -
FlexiClamp: the pump is supplied without collars
(Optional accessories).
1.3 Applications
VR centrifugal multi-stage pumps are suitable for a wide
range of applications. They can be used in agriculture
as well as in the civil and industrial field, as for example:
water tank, watering, irrigation, high pressure washing,
fire fighting protection, air conditioning, etc.
1.4 Pumped liquids
Clean liquids, compatible with the construction materials
of the pump, not containing solid particles or fibres.
If the pump is used to pump liquids with viscosity or a
density higher than water ones, it is necessary to use a
motor with a proportionally greater power.
1.5 Temperature of pumped liquids
The pumped liquids must remain within a given
temperature range: -20
º
C to +120
º
C
2 DELIVERY AND STORAGE
2.1 Delivery
The pumps are supplied in their original package
in which they must remain until they are installed.
Pay attention not to subject the pump to flexing after
unpackaged: this may cause the misalignment or the
damaging of the pump itself. Take care not to bump or
bind the components.
2.2 Storage and Handling
Storage temperature:
Pump: -20
º
C to +60
º
C
Neither the pump, nor the motor should be exposed
to sunlight. If the pump was not packaged, it has
to be stored in the warehouse vertically, in order to
prevent any possible misalignment. The pump must be
protected against frost and atmospheric agents. During
storage, the pump can be supported as shown in figure
2.1. In case of lack of the motor use a belt wrapped on
the pump head, paying utmost care not to damage the
lateral joint covering protections.
The motors of the pumps supplied with
eyebolts must not be used to handle the
whole assembled electropump (see fig. 2.2).
