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Operating Instructions
Vacuum pump
A Vacuum connection
B Exhaust air
connection
E Cooling air entry
F Cooling air exit
H Oil filling point
I Oil check
K Oil drain point
M Oil type plate
N Data plate
O Direction of
rotation
U Gas ballast valve
X V-belt disc for SPZ 10
20
10
1
0,1
1
10
Suction pressure
* related to suction conditions at inlet connection. Curves and
tables refer to vacuum pump at normal operating temperature.
Pump ranges
These operating instructions concern the following oil flooded
rotary vane vacuum pump: VVL 15.
Description
VVL vacuum pump is fitted with a mesh filter on the pump inlet.
On the exhaust side of the pump an oil mist eliminator is fitted
which has the function of re-circulating oil back into the circula-
tion system as well as providing high efficiency separation on
the pump exhaust. A standard built-in non-return valve on the
inlet of the pump, seals the pump from the process when the
pump is stopped. This prevents oil moving into the pumping
cylinder when the pump is stationary. Excessive oil in the
cylinder could cause an hydraulic lock when the pump is started
and hence undue stress on the rotor blades. The gas ballast
valve (U) avoids any condensation of a small amount of water
vapour inside the pump and hence emulsification of the oil.
The drive of the VVL is by belt drive.
Suitability
The unit VVL is suitable for use in the industrial field
i.e. the protection equipment corresponds to EN DIN
294 table 4, for people aged 14 and above.
This model can be used for the evacuation of a closed system
[mm]
VVL
15 (60 Hz )
15 (50 Hz )
Capacity
Ultimate vacuum
Motor rating
Speed
100
1000
Average noise level
mbar (abs.)
Maximum weight
Oil capacity
or for a permanent vacuum from: 5 to 100 mbar (abs.)
When permanently operating the pumps outside these ranges,
there may be oil seepage at the exhaust port. If closed systems
are evacuated from atmospheric pressure down to a suction
pressure close to the ultimate vacuum, there is no problem with
the oil system, providing the vacuum limit can be achieved
within a 10 minute pump down time.
Amounts of water vapour may be handled. Water,
other liquids, aggressive or inflammable gases and
vapours may not be handled.
Handling of inflammable or aggressive gases and vapours
is only possible with special versions, if the safety instruc-
tions XE 2 are noted.
The ambient and suction temperatures must be be-
tween 5 and 40°C. For temperatures outside this
range please contact your supplier.
The standard versions may not be used in hazardous areas.
The back pressure on the exhaust port must not exceed + 0.1
bar.
For all applications where an unplanned shut down
of the vacuum pump could possibly cause harm to
persons or installations, the corresponding safety backup
system must be installed.
max.
min.
50 Hz
60 Hz
50 Hz
60 Hz
50 Hz
60 Hz
50 Hz
60 Hz
VVL
VVL 15
15
3
15 m
/h
3
18 m
/h
5 mbar (abs.)
0,55 kW
0,65 kW
-1
1450 min
-1
1740 min
66 dB(A)
68 dB(A)
20 kg
2 l
YE 182
1.2.99
Werner Rietschle
GmbH + Co. KG
Postfach 1260
79642 SCHOPFHEIM
GERMANY
0 76 22 / 3 92-0
Fax 0 76 22 / 39 23 00
E-Mail: info@rietschle.com
http://www.rietschle.com
Rietschle (UK) Ltd.
Bellingham Way
NEW HYTHE
KENT ME20 6XS
UNITED KINGDOM
0 16 22 / 71 68 16
Fax 0 16 22 / 71 51 15
E-Mail: info@rietschle.co.uk
http://www.rietschle.co.uk
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