Table des Matières
Publicité
OPERATOR'S MANUAL
3.3.2
Installing and Erecting the Centrifugal Pump
Except in the case of special models, centrifugal pumps are always placed with the pump
foot or motor foot onto a base plate and are fastened down with screws.
When installed on a foundation the centrifugal pump must be set up with the aid of a spirit
level.
3.3.3
Connecting the Pipework
Information:
i
Under no circumstances must the centrifugal pump be used as anchor point for
the pipework. No forces or moments (e.g. due to twisting or heat expansion)
from the pipework must act on the centrifugal pump. The pipes must be
supported as close as possible to the centrifugal pump and connected to it free
of all tension. This should be done by using suitable compensators.
Attention:
Mortal danger! In the case of hot, caustic or poisonous delivery media!
If the pipe strength is exceeded leaks can occur in the centrifugal pump or in
the flange connections, for example, that could result in vast amounts of
medium being expelled.
•
In the case of short pipes the nominal bore should be at least the same as the
centrifugal pump connections. For long pipes the most economic nominal bore should
be determined on a case by case basis.
•
Connection pieces to larger nominal bores should be carried out with approx. 8°
expansion angle to avoid significant loss of pressure.
•
In order to prevent the formation of air pockets, the suction pipe to the centrifugal pump
must be installed to rise continuously, on the pressure side it must fall continuously.
•
Depending on the type of system and centrifugal pump being used, it is recommended
that backflow prevention and shut-off devices are installed.
•
Expansion of the pipes due to temperature must be remedied by suitable measures.
We recommend the installation of compensators immediately between the centrifugal
pump and the pipes.
Pumpe Typ WK / WKN
Version: 27220 - A
Schmalenberger GmbH + Co. KG
D-72072 Tübingen / Germany
57
Publicité
Table des Matières
