Safety Information
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300407956_002_C1 - 01/2017 - © Leybold
0.7 Dangers in Connection with safety-related
Measures and Precautions
Take note of the warning information on the casing surface. If this warning
information was removed, covered or obstructed, then provide corre-
sponding additional warning information.
0.8 Danger of Pump Damage
1
Select an installation site for the pump so that all controls are easily
accessible.
2
The pumps are supplied filled with PFPE (LVO 410)
or
synthetic oil
(LVO 210). For this reason they should, while being transported or
shipped, not be subjected to tilting by more than 10° with respect to
the horizontal axis. Store the pumps only horizontally standing on their
feet.
3
When pumping dust containing media, install a dust filter in the pro-
cess gas flow upstream with respect to the pump.
4
When connecting the pump, provide a suitable valve on the intake side
for the purpose of shutting off the intake line so as to prevent the
pump from turning backwards in the event of a power failure.
Otherwise the pump may suffer damage or oil may contaminate the
pump chamber.
5
Lines and other vacuum connections should be clean and free of oil.
Special attention must be paid here when oil-sealed pumps have been
used on the vacuum side. Check the conditions before initial commis-
sioning. In the case of deviations, the pump can suffer contamination
with oil residues.
6
The pressure within a pump which has been switched off will increase
to ambient pressure within a few seconds. In such a case the pump is
vented through the discharge. We recommend to fit a
nonreturn dis-
charge valve.
7
The
discharge line
should be laid so that it slopes down and away
from the pump so as to prevent condensed vapours from backstream-
ing into the pump.
8
In the case of wet processes we recommend the installation of
liquid
separators,
upstream and downstream of the pump so as to avoid
the influx of liquid into the pump.
CAUTION
NOTICE
