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FLOWSIC100 Flare · Addendum to Operating Instructions · 8025365/V1-0/2020-05 · © SICK Engineering GmbH
Installation
4.7.5
Drilling holes into the pipeline if plant is in operation (hot tap)
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Only once on each nozzle.
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The hole cutter diameter must be 46 ... 48 mm for 2“ nozzles.
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Mount the drilling tool on the ball valve.
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Open the ball valve and drill out the holes in the pipeline in the center of the nozzle
position.
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Retract the drilling tool.
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Close the ball valve again. Then, remove the drilling tool.
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Mount a blind flange on the ball valve as long as no sender/receiver unit is installed.
WARNING:
Hazards during hot tapping
When sender/receiver units are installed on the pipeline when the pipeline is in
operation (hot tapping):
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Only have this work done by skilled persons qualified for hot tapping.
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Comply with all legal, general and company-internal regulations.
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Only start installation work when all planned measures have been checked
and approved by the plant operator.
WARNING:
Accident risk
When the hole has been drilled and no sender/receiver unit has been installed:
Gas flows through the pipeline when the ball valve is opened.
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Keep the ball valve closed and fitted until a sender/receiver unit has been
fitted.
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Secure the ball valve against unintentional activation.
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Instruct other persons accordingly.