Technical Information
Connection of the High Vacuum Flange
TwisTorr 74 FS User Manual / 87-901-053-01 329/342
• Both flanges have through holes and nuts are tightened by the
envelope flange. The nut can not rotate freely and it is mandatory to
use a key to hold it while tightening the fixing screws.
II Installation for CFF 4,5”
CAUTION!
The nut can cause damages not only from an aesthetical point of view but it may
as well have consequences on pump operation.
• Contra flange has through holes, screws cannot be inserted from the
bottom as there is not enough space to accommodate them.
II Installation for CFF 4,5”
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