Elmo Rietschle V-VCE 25/40 - Manual (Page 13)

13 www.gd-elmorietschle.com © Gardner Denver Schopfheim GmbH, Gardner Denver Deutschland GmbH |
Bauj./Nr. 09
S1 1,85 / 2,20 kW
Typ VC 75 (20)
0,5 mbar (abs.)
2847746
70 / 84 m³/h
EN 60034
1430 / 1720 min -1
1026502067
3~ Mot.
Set up and operation
6
1
7 8 9 10
3 4 5 2
4.1.1 Data plate
Fig. 3 Data plate (example)
4.2 Description
The V-VGA and V-VGC have a fi ne micro fi lter on the suction side and on the outlet side an oil and oil mist
separator to return the oil to the oil circulation system. A fan between the pump housing and the motor pro-
vides intensive air cooling. The fan is located in a fan housing that guards against it being touched.
An integral non-return valve prevents the evacuated system from being ventilated after the pump has
stopped and it prevents the feed chamber from being saturated with oil after the system has stopped. This
would lead to oil knocking when the system started up again.
A gas ballast valve fi tted 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 can be provided for higher amounts of water vapour.
The pumps are driven by standard fl anged three-phase motors using a coupling.
4.3 Areas of application
These oil-fl ooded rotary vane vacuum pumps V-VCA 25, V-VCA 40, V-VCE 25 und V-VCE 40 are suitable
for creating vacuums. The suction power with unrestricted suction is 25 and 40 m
3 /h at 50 Hz. Data sheets
D 150/3 (V-VGA) and D 154/3 (V-VGC) show the dependency of the suction power on the inlet pressure.The
models are suitable for evacuating closed systems or for a constant vacuum in the following intake pressure
ranges:
50 Hz
➝ V-VCA: 0.5 to 130 mbars (abs.) • V-VCE: 10 to 500 mbars (abs.)
60 Hz ➝ V-VCA: 0.5 to 100 mbars (abs.) • V-VCE: 10 to 400 mbars (abs.)
If operated constantly outside these ranges there is the risk of oil leaking through the outlet. When evacuat-
ing closed systems the volume to be evacuated must be no more than 2% of the nominal pumping capacity
of the vacuum pump.
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 infl uences, (e.g. by a
protective roof).
1 Type/ Size (mechanical version)
2 Year of construction
3 Motor design
4 Serial number
5 Item no.
6 Final pressure (abs.)
7 Pumping capacity 50 Hz / 60 Hz
8 Speed 50 Hz / 60 Hz
9 Motor output 50 Hz / 60 Hz
10 Operating mode