Gianneschi 01GMV434G, Руководство по эксплуатации и обслуживанию, Страница: 8 / 34

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4 Pump installation
4.1 Rotating direction.
The rotating direction of the pump is indicated on the pump body and/or the stator.
The rotating direction determine the flow direction, for the floating stator pump the
flow direction is compulsory.
A wrong direction can damage the pump.
Pump must be installed in a horizontal position, leaving a space not less than 30 cm around
all sides of the pump. This will help you in making maintenance process and also to prevent
and motor heating problems.
When the pump is not connected with the ground we suggest to install a vibration
compensator.
4.2 Pressure.
Without any different indication on the order the admissible pump pressure is 4 bar.
4.3 Pipes.
Arrange the pipes in order to warranty a presence of fluid upstream the pump. In that way is
warranted a suitable quantity of fluid for Lubrication during the start.
Before connecting the pump clean and wash all pipes.
Connect the pipes so that not suitable force are not applied on the pump’s connections.
It is advisable to install between the pump and the pipes compensator in order to avoid
pipes pressurise the pump causing pump damage and to reduce the vibrations transmitted
along the pipes.
Pipe works has to be same size of larger than the delivery and discharge pump ports.
To help personnel carry out servicing union joints should be fitted in the suction and
discharge pipe-work close to the pump.
When the static discharge head is > 15 m, a non-return valve should be fitted to avoid the
pump-seal system being over-pressurized by the water column.
If any isolation valves are mounted on discharge pipe-work, a safety relief valve is suggested
to safeguard the pump from running against closed valve.
When pump is not fixed on the ground, a vibration isolators should be fitted.
4.4 Electric connections
All electrical connections, both for the Gianneschi pump or any other machinery into which
the Gianneschi pump is incorporated must be carried out by experienced and qualified
personnel under the respective laws of the country in which the equipment will be installed.
5 Running position
Remember: DRY RUN THE PUMP IS NOT PERMITTED.
Important. Just few revolutions will probably cause damage to the pumping parts,