For each hottap shall be ensured that the pipe that is drilled or sawed has sufficient wall thickness, which can be measured with ultrasonic thickness gauges.It should be noted that hot tapping of sour gas lines presents special health and metallurgical concerns and shall be done only to written operating company approved plans.Hot Taps shall be installed by trained and experienced crews.A hot tap shall not be considered a routine procedure, but shall be used only when there is no practical alternative.While is preferred to install nozzles during a turnaround, installing a nozzle with equipment in operation is sometimes advantageous, especially if it averts a costly shut down. There are many reasons to made a Hot Tap. Mechanical fittings may be used for making hot taps on pipelines and mains provided they are designed for the operating pressure of the pipeline or main, and are suitable for the purpose. Hot tapping machine which includes the cutter, and housing.
Isolation valve like Gate or Ball valve.Split Tees often to be used as branch and main pipe has the same diameters. Tapping fittings like Weldolet®, Reinforced Branch or Split Tee.Hot Taps or Hot Tapping is the ability to safely tie into a pressurized system, by drilling or cutting, while it is on stream and under pressure.
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