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FLOWSIC100 Flare-XT · Operating Instructions · 8023761/V1-0/2020-10 · © SICK Engineering GmbH
Installation FLSE100-XT
5.6.8.2
Tightening the self-cutting ring
SICK recommends that the correct setting of the wetted part length and tightening the
cutting ring be carried out 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. 35
Positioning of self-cutting ring (overview)
WARNING:
Risk of leakage due to damage to the duct probe
If the duct probe is displaced when the pipe screw fitting is tightened, the duct
probe may be damaged so that no tightness can be achieved after tightening
the cutting ring.
▸
Only move the duct probe when the pipe screw fitting is loosened.
▸
Tighten 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; for cross-duct versions both sender/receiver units must be
replaced.
Before tightening the self-cutting ring, make sure that the wetted part length
has been calculated correctly:
▸
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 Self-cutting ring marking
3 Pipe screw fitting
4 Duct probe
1
Wetted part length wL
3
2
4
