BÜCHI Labortechnik AG
Operation | 6
Operation Manual Rotavapor® R-300
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¾
1
Fig. 40: Cooling condenser
1
Cleaning hole
WARNING
Risk of explosion from excessive internal pressure
The evaporating flask and/or the condenser could explode if the internal pressure pro-
duced by evaporation becomes too great.
u
Make sure that the pressure in the system is never greater than atmospheric pres-
sure.
NOTE
The stopcock should only be inserted in the cooling condenser, not secured. If an
abrupt rise in pressure occurs during distillation, the stopcock will then be able to pop
out, which is intended. That guarantees that the system pressure is never greater
than atmospheric pressure.
NOTE
If a distillation process is to be carried out at normal pressure, the glass components
– for example the cleaning hole (1) on the cooling condenser – should be opened to
prevent pressure build-up.