Connecting The Cooling; Connecting The Purge Gas And The Airing Device - Leybold vacuum TURBOVAC 1100 C Gebrauchsanleitung

Fig. 5 Cooling water consumption

2.4 Connecting the cooling

The TURBOVAC must be cooled with water.
Cooling water specifications
Inlet temperature
Inlet pressure
Cooling water requirement
Appearance
Sediments
Particle size
pH value
Overall hardness (total alkaline earths)
max. 20 ° German hardness scale
Further information on request.
Connecting the cooling water
Connect the coolant hoses to the hose nipples and
secure with hose clamps.
If the coolant flow is turned on and off by means of a
solenoid valve, make the electrical connection in such a
way that coolant flow will be started and stopped
together with the pump itself.
GA 05.128/7 - 05/2002
1,2
l/min
1
0,8
0,6
0,4
0,2
0
5 10
10 - 30 °C
3 to 7 bar absolute
See Fig. 5
Colorless, clear,
free of oils and greases
< 250 mg/l
< 150 µm
7 to 8.5
(= 3.57 mmol/l)
15 20 25
Cooling water temperature
2.5 Connecting the purge gas
and the airing device
Purging gas
When evacuating reactive gases or gases containing
dust, the TURBOVAC will have to be used with purging
gas. To do so, a suitable purging gas valve with a gas fil-
ter will have to be installed at the purging gas flange on
the TURBOVAC.
Connect the purging gas valve in such a way that it will
open when the pump is started and will close, at the very
earliest, when the pump is switched off.
Suited are all gases,
• which will not cause corrosion or pitting in aluminium
and steel and
• which in connection with process deposits in the
pump will not cause corrosion or sticking.
For venting and as the purge gas we recommend inert
gases like nitrogen or argon. The temperature of these
gases should be between 5 °C and 80 °C , max. relative
humidity should not exceed 10 ppm.
In individual cases and after consultation also dry, filte-
red, oil-free air or filtered ambient air may be used (filter
mesh < 1µm).
Change the filters after some time, at least annually.
Different venting methods are described in Chapter 3.4.
30 35
°C
Connections
19