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Hot Tapping and Plugging Through Valves

EPC and installation of hot tapping of 2 x 4" butterfly, isolation plugging and valve replacement.


Pipe Intervention


January - September 2020


Northsea, Norwegian Continental shelf

Project Manager:

Roald Kolnes

The owner of a late life asset needed to change outlet valves from a concrete structural support tank. IK-Group performed a FEED study and was awarded the contract for EPC and installation offshore, based on the solutions and technical know-how.

The following keywords describes the steps taken to perform the work in safe and effective manner:

  • Installed new ball valve and adapters to create a safe hot tap barrier 
  • Hot tapped blind flange/butterfly valve disc and removed the coupons via the installed Ball valve 
  • Installed and activated a double barrier extended plug to isolate the tank 
  • Replaced valve while keeping the extended plug activated


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