8 | Operating top-mount drying racks
Büchi Labortechnik AG
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Operation Manual Lyovapor™ L-300/L-300 Pro
8.7
Determining the number of flasks
NOTE
Do not overfill flasks
Maximum volume of the samples ≤ half of the flask volume
NOTE
The number of flasks used should be determined individually for every process.
The number of flasks used is dependent on the following factors:
The volume of the flask
The method of freezing
The concentration of the sample
The composition of the solvent
Number of flasks using water as an example
Flask volume 1000 mL
Flask volume 500 mL
Rotating freezing
Max. 22 flasks
Max. 22 flasks
Static freezing
Max. 36 flasks
Max. 36 flasks
8.8
Operating manifold valves
The lever on a manifold valve can be set to the following positions:
1
2
A
B
Position
Function
A: Lever pointing up
The connected vessel is evacuated.
B: Lever pointing down The connected vessel is vented.