3
INSTALLATION
36
OPTISWIRL 4200
www.krohne.com
02/2022 - 4003930810 - MA OPTISWIRL4200 R10 en
3.8.2 Installing devices in sandwich design
•
Push the first bolt
3
through the hole
4
of both flanges.
•
Screw on the nuts and washers to both ends of the bolt
3
but do not tighten them.
•
Install the second bolt through the holes
4
.
•
Place the flow sensor
1
between the two flanges.
•
Insert the gaskets
5
between flow sensor
1
and flanges and align them.
•
Check that the flange is concentric.
•
Install the remaining bolts, washers and nuts. Do not yet tighten the nuts.
•
Turn the centring ring
2
in a counter-clockwise direction and align the device.
•
Check that the gaskets
5
are concentric; they must not protrude into the pipe cross-section.
•
Now tighten all nuts bit by bit alternately across the diagonal.
Figure 3-14: Installation using centering ring
1
Flow sensor
2
Centering ring
3
Bolts with fixing nuts
4
Drill hole
5
Sealing
