Filter
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The Blowing Process of the System. the Filling Sta-
tion and the Vacuum Pumo and Opening of the Sys-
tem
7. Drilling and tapping of the process pipe.
8. Connect dry nitrogen and equalize the pressure in
the system.
9. Open the valve on the tongs at the filter drier and
the spherical valve (18).
10. Open the valve for the filling station (11).
11. Slowly open the valve for the vacuum pump (12)
and blow the system, the filling station and the
vacuum pump through.
12. The system can then be opened with capillary
tube scissors.
18.