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© Gardner Denver Schopfheim GmbH, Gardner Denver Deutschland GmbH
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Set up and operation
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4.1.1 Data plate
Fig. 3 Data plate
4.2 Description
V-VC 202 and V-VC 303 have a micro filter on the intake side and an oil and oil mist separator for the return
of the oil to the oil system on the outlet side. The vacuum pump is housed in a sound cover. A fan between
the pump housing and the motor cools the air in the pump housing and cools the circulating oil.
An integral non-return valve prevents the evacuated system from being ventilated after the pump has
stopped. If the machine has been idle for more than two minutes the connected pipe should be ventilated to
atmospheric pressure.
A gas ballast valve fitted as standard (Fig. 2/U) prevents condensation of water vapour in the inside of the
pump when low amounts of steam are sucked in when the pump is at operating temperature. A reinforced
gas ballast (optional) can be used if there is a higher amount of water vapour.
The pumps are driven by standard flanged three-phase motors using a coupling.
4.3 Areas of application
These oil-flooded rotary vane vacuum pumps V-VC 202 and V-VC 303 are suitable for producing vacuum.
The nominal suction capacity with free suction is 200 and 300 m
3
/h at 50 Hz. Data sheet D 232/20 shows the
dependency of the suction capacity on the intake pressure.
These types are suitable for the evacuation of closed systems or for a continuous vacuum within the follow-
ing intake pressure ranges: 0.5 to 500 mbar (abs.).
If the machine is operated continuously outside these ranges there is the risk of oil leaking through the outlet
opening. When evacuating closed systems the volume to be evacuated must be no more than 2% of the
nominal suction capacity of the vacuum pump.
For permanent operation of > 100 mbar (abs.) the next larger motor output must be used.
If the unit is switched on more frequently (at regular 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 protected from environmental influences, (e.g. by a
protective roof).
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Type/ Size (mechanical version)
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Serial number
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Year of construction
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Data Matrix Barcode
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Item no.
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Speed 50 Hz/60 Hz
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Motor output 50 Hz/60 Hz
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Operating mode
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Suction capacity 50 Hz/60 Hz
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Ultimate vacuum (abs.) 50 Hz/60 Hz
Following information are encrypted in the barcode:
• Material number (MA)
• Production order (PR)
• Serial number (SC)
