Oerlikon Leybold Vacuum 960 862, Operating Instructions Manual

Page: 23 / 56

23 GA02319_002_03 - 07/2007 - © Oerlikon Leybold Vacuum
Water cooling
The SOGEVAC
®
pumps are equipped, in standard for the SV630 BF and
as an option for the SV630 B/SV750 B, with a water cooling system and a
thermostatic valve. Depending on the local regulations, the cooling water
needed may not be taken from the drinking water mains and max. water
temperatures must be observed. The water cooling connection is made by
an ARGUS type 1/2» x M22 - 150 adapter.
The thermostatic valve regulates the cooling water throughput, and so the
pump temperature. The valve is set in standard on position 1.
Normally, the thermostatic valve should be set somewhere in the range from
1 to 3. Thermostat setting 1 (valve fully open) produces a low operating
temperature of the pump, and setting 3 a high one.
Pumping on vapors requires setting on position 3.
Installation
100
0
100
95
90
85
80
75
70
65
60
100 0
100
95
90
85
80
75
70
65
60
55
50
SV630 B water cooled at 50 Hz
Mean vacuum generator temperature in function of thermostatic valve position setting
SV630 B water cooled at 60 Hz
Mean vacuum generator temperature in function of thermostatic valve position setting
Pressure (mbar)
position 3 with gas ballast
position 3 without gas ballast
position 2 with gas ballast
position 2 without gas ballast
position 1 with gas ballast
position 1 without gas ballast
Pressure (mbar)
Vacuum
generator
mean
temp.
(°C)
Vacuum
generator
mean
temp.
(°C)
fig. 5
position 3 with gas ballast
position 3 without gas ballast
position 2 with gas ballast
position 2 without gas ballast
position 1 with gas ballast
position 1 without gas ballast