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- With gas ballast valve open, the ultimate vacuum will
be reduced.
- Use inert gas for gas ballast to avoid the formation of
explosive mixtures. Attention: maximum supply pres-
sure of inert gas: 17.5 psi (1.2 bar) absolute.
- Close the gas ballast valve by turning the cap 180°.
In case of low boiling solvents (when the formation of con-
densate is unlikely), the use of gas ballast might be unnec-
essary. Operating the pump without gas ballast increases
the solvent recovery rate at the exhaust waste vapor con-
denser (see „Accessories“, pg. 33).
Shutdown & storage
The pump can be switched off under vacuum.
Short-term:
Has the pump been exposed to condensate?
Allow the pump to continue to run at atmospheric pres-
sure for a few minutes.
Has the pump been exposed to media which may damage
the pump materials or form
deposits
?
Check and clean pump heads if necessary.
Long-term:
Take measures as described above regarding short-term
shutdown.
Separate the pump from the application.
Close the gas ballast valve.
Close inlet and outlet ports (e.g., with transport caps).
Store the pump under dry conditions.
NOTICE
Summary of Contents for ME 16C
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