SICK FLOWSIC100 Flare - Drilling Holes into the Pipeline if Plant Is in Operation (Hot Tap)

46 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)
▸ Only once on each nozzle.
▸ The hole cutter diameter must be 46 ... 48 mm for 2“ nozzles.
▸ Mount the drilling tool on the ball valve.
▸ Open the ball valve and drill out the holes in the pipeline in the center of the nozzle
position.
▸ Retract the drilling tool.
▸ Close the ball valve again. Then, remove the drilling tool.
▸ 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):
▸ Only have this work done by skilled persons qualified for hot tapping.
▸ Comply with all legal, general and company-internal regulations.
▸ 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.
▸ Keep the ball valve closed and fitted until a sender/receiver unit has been
fitted.
▸ Secure the ball valve against unintentional activation.
▸ Instruct other persons accordingly.