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www.gd-elmorietschle.com
© Gardner Denver Schopfheim GmbH, Gardner Denver Deutschland GmbH
Set up and operation
4.2 Description
The C-VLR 1000 model has a connection flange on the inlet side and an exhaust silencer on the pressure
side (Fig. 2/B
1
). The air sucked in is cleaned by a filter cartridge in the suction filter (Fig. 2/S
1
) and a micro-
filter (Fig. 2/S).
The ZEPHYR VLR 1000 is a double shaft rotary piston vacuum pump in which the claws roll off against each
other contact free and dry. The counter-rotating claw rotors are synchronised by a gear pair in the gearbox.
The synchronous gearbox gear wheels and the bearings are lubricated with oil. These components are in
a gearbox that also contains the oil supply. Oil conveying devices always ensure that the bearings and the
gear wheels are sufficiently supplied with oil at all permissible speeds.
The gearbox and the compression chamber are separated from each other by special seals. The gearbox
is sealed from the outside with shaft seals and O rings, the compressor chamber with piston rings.The
VLR 1000 is enclosed in an insulating hood. In order to dissipate compression heat, the cooling air is sucked
through between the machine and the hood using a drum fan that sucks in the fresh cooling air (Fig. 2/E)
and discharges the heated air out of the cooling air outlet (Fig. 2/F).
The VLR 1000 is driven by standard flanged three-phase motors via a coupling. Three-phase motor with integral
frequency converter (Fig. 2/V) makes possible infinitely variable control of the speed.
A vacuum relief valve is incorporated into the machine.
4.3 Areas of application
This contact free running claw vacuum pump, the C-VLR 1000, can be operated constantly at any pressure
between atmospheric and an inlet pressure of 200 mbars (abs.).
The suction capacity with unrestricted suction is 950 m
3
/h at 50 Hz. Data sheet D 880-80-FU shows the de-
pendency of the suction 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 influences, (e.g. by a pro-
tective roof).
Prematic AG, Märwilerstrasse 43, 9556 Affeltrangen www.prematic.ch
Tel. 071 918 60 60, Mail: [email protected]
