
Freeze-dryer Alpha 1-4 LDplus
Freeze-dryer Alpha 2-4 LDplus
5 Set-up and connection
Version 11/2006, Rev. 2.2 of 17/10/2016
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37 / 102
Translation of the original operating manual
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5.6
Pressure control valve
The pressure control valve is integrated in the suction pipe between the
vacuum pump and ice condenser chamber. During certain, specified
process phases, it interrupts the volume flow to the vacuum pump (see
chapter 2.2.1 - "General information on freeze-drying").
CAUTION
Observe the installation direction of the pressure control valve!
1
Pressure control valve
2
Vacuum pump
connection
Fig. 17: Installation of the pressure control valve
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