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Set up and operation
4.1.1 Data plate
1
2
vacuum pump
V-VLR 301 (01)
6
EN 60034
Johann-Sutter-Straße 6+8, D-79650 Schopfheim, www.elmorietschle.de
Fig. 4 Data plate
1
Type/ Size (mechanical version)
2
Year of construction
3
Serial number
4
Data matrix barcode
5
Item no.
6
Motor output
Following information are encrypted in the barcode:
•
Material number (MA)
•
Production order (PR)
•
Serial number (SC)
4.2
Description
The C-VLR 301 (F001) model has a connection flange on the inlet side and an exhaust silencer on the pres-
sure side (Fig. 2/B
). The C-VLR 301 (F002) model has a vacuum gauge (Fig. 2/Y), a suction filter (Fig. 2/S
1
on the inlet side and an exhaust silencer on the pressure side (Fig. 2/B
vents the evacuated system from being ventilated after the pump has stopped.
The ZEPHYR VLR 301 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 301 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).
Three-phase motor with integral frequency converter (Fig. 2/V) makes possible infinitely variable control of
the speed.
A vacuum limitation valve is incorporated into the machine.
4.3
Areas of application
This contact free running claw vacuum pump, the C-VLR 301, can be operated constantly at any pressure
between 700 mbars (abs.) and an inlet pressure of 150 mbars (abs.).
When evacuating closed systems the volume to be evacuated must be no more than 2 % of the nominal
suction capacity of the vacuum pump.
Data sheet D 885 shows the dependency of the suction capacity on the intake pressure, with frequency con-
verter data sheet D 885-78.
14
|
www.gd-elmorietschle.com © Gardner Denver Schopfheim GmbH, Gardner Denver Deutschland GmbH
3
4
SN: SC0123456789
BJ: 2017
ID: 102859F002
8,25 kW
Made in Germany
5
7
8
9
f:
25
450
p:
140
V:
1390
n:
P:
2,75
S6 50% SD=2MIN
Johann-Sutter-Straße 6+8, D-79650 Schopfheim, www.elmorietschle.de
10 11
Fig. 5 Data plate frequency converter
7
Suction capacity
8
Ultimate vacuum (abs.)
9
Frequency range
10
Speed range
11
Motor output
). An integral non-return valve pre-
1
SN: SC0123456789 / 2017
-
75
Hz
-
450
mbar(abs.)
-
405
m³/h
-
4390
1/min
-
8,25
kW
Made in Germany
)
1
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