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FLOWSIC100 Flare · Addendum to Operating Instructions · 8025365/V1-0/2020-05 · © SICK Engineering GmbH
Installation
4.8.2
Tightening the self-cutting ring
SICK recommends carrying out the correct setting of the wetted part length and the
tightening of the cutting ring in a workshop before installation in the pipeline.
Tightening the self-cutting ring in the correct position ensures the correct wetted part
length for installation in the pipeline.
Fig. 32
Positioning of self-cutting ring (overview)
WARNING:
Leakage hazard due to duct probe damage
Shifting the duct probe after the pipe screw fitting was tightened can damage
the duct probe, so that tightness cannot be achieved after tightening the self-
cutting ring.
▸
Shift the duct probe only when the pipe screw fitting is loosened.
▸
Retighten the pipe screw fitting with a torque of 150 Nm after positioning
the duct probe.
Otherwise there is a risk of leakage.
NOTICE:
Damage due to incorrect position of the self-cutting ring
The position of the self-cutting ring cannot be changed after tightening! If the
self-cutting ring is tightened in the wrong position, the sender/receiver unit
must be replaced. On cross-duct versions, both sender/receiver units must be
replaced.
Make sure the wetted part length has been calculated correctly before tighten
-
ing the self-cutting ring:
▸
Check the measured values.
▸
Check that the wetted part length is plausible compared with nozzle length
and ball valve length.
1 Cap nut (self-cutting ring fitting)
2 Marking of self-cutting ring fitting
3 Pipe screw fitting
4 Duct probe
1
Wetted part length wL
3
2
4
