Heidolph Hei-VAP Value - Operation of the Hei-VAP Value

Set-up and Start-up
Hei-VAP Value, Hei-VAP Advantage 37
EN
4.6 Feed the distilled material
Additional distillation material can be supplied during the distillation under vacuum via
the inlet tube and the inlet pipe.
Figure 4–26: Inlet tube
1
Inlet tube
2
Stopcock
1. Place the inlet tube (1) in the additional distillation material.
2. Turn the stopcock (2) parallel to the inlet tube (1).
The additional distillation material is suctioned into the evaporation flask while system is
under vacuum.
4.7 Ventilate manually
The system can be ventilated with the valve stopcock (Figure 4–26 (2) of the inlet pipe.
 Slowly turn the stopcock (Figure 4–26 (2)) of the inlet tube upward.
The system will be ventilated.
Inlet tube