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Assembly and functions
Vacuum pump system SCC 950
18
Translation of original Operating Instructions, English, KNF 304771-304773 07/18
5.3. Gas ballast
Assembly
1
Gas ballast valve
Fig. 5: Gas ballast of the pump
Function of the gas ballast
WARNING
Personal injury caused by poisoning or explosion
and damage to the pump
Make sure that no reactive or explosive mixtures
will be produced when the gas ballast valve is
open.
When transferring vaporous media, opening the gas ballast
valve can minimize the formation of condensation in the pump
heads.
Opening the gas ballast valve deteriorates ultimate vacuum
performance.
The gas ballast valve is opened and closed via the gas ballast
switch (Fig. 2/
6
, p. 13):
- Press once
Open gas ballast valve, blue LED on
- Press again
Close gas ballast valve, blue LED off
Please contact KNF Service if you require an inert connection for
the gas ballast.