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Tightening fastening
nuts
OI/LS4000/NH3/H2O-EN
Step
Procedure
3
Install the isolation flange 7 with the fastening nuts and washers 1
on the installation flange 2. The retaining ring for the window in
the isolation flange must point towards the installation flange.
4
Insert the purging flange O-ring 8 between the isolation flange 7
and the purging flange 9.
5
Install the purging flange 9 with the fastening nuts and washers 10
on the isolation flange 7.
6
Tighten the four locking screws 5.
7
For the purge gas supply, connect a pipe with an 8 mm outside
diameter to the purge gas connection 4 (1/4 inch Swagelok® con-
nection).
Tighten all fastening nuts after assembly at intervals of 24, 48 and
72 hours, in order to compensate for the lingering tension release
in the material of the isolation flange flat gasket.
Operating instruction LS4000 for NH
and H
O
3
2
25
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