Elmo Rietschle S-VSI 100(01)/300(01)/300(12) - Manual (Page 15)

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Set up and operation
4.3 Areas of application
The screw vacuum pumps are suitable for the evacuation of closed systems or for a continuous vacuum
within the following intake pressure ranges: 0.1 to 1000 mbar (abs.).
They are also particularly suitable for feeding in extremely damp gases. The water vapour compatibility is
very high.
The maximum pumping capacity with free suction is 110 m 3 /h and 320 m 3 /h at 50 Hz. Data sheet D 832
shows the dependency of the pumping capacity on the intake pressure.
If the unit is switched on more frequently (at regu-
lar intervals of about 10 times an hour) or at higher
ambient temperatures and intake temperatures, the
excess temperature limit of the motor winding and
the bearings may be exceeded.Please contact the
manufacturer should the unit be used under such
conditions.
If it is installed in the open air the unit must be pro-
tected from environmental infl uences, (e.g. by a pro-
tective roof).
ACHTUNG
The srew vacuum pump S-VSI 300 (12) may only
be operated in continuous operation S1.
When evacuating closed systems the volume to
be evacuated must be max. 80 l.