Vacuum system SH820G / SR820G SH840G / SR840G
Translation of Originial Operating Instruction, KNF 325562-325564 06/21
5.4 Gas ballast
Fig.5: Operating button for gas ballast
DANGER
If vaporous media are transferred, the formation of con-
densate in the pump heads can be minimized by open-
ing the gas ballast valve.
The final vacuum that can be achieved is worse when
the gas ballast valve is open (see the chapter entitled 4
Technical data [} 16]).
Product description and function
Personal injury through poisoning or
explosion and damage to the pump
à
When the gas ballast valve is open,
make sure that no reactive or ex-
plosive mixtures can form.
à
Close the gas ballast valve if nec-
essary.
à
If inert gas is necessary, contact
KNF Service.
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