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    DDT Service

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Decoking and Descaling Services

DDT provides mechanical pigging to decoke and descale fired heaters in refineries and petrochemical plants. As a pioneer in the pigging industry and the most advanced pigging company in the world, we guarantee the complete removal of all coke and deposit buildup types from the tubes of your fired heaters.

DDT will fully restore your heater tubing to:

  • Improve performance
  • Increase reliability and capacity
  • Empower your refinery team for maximum process unit profitability
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Work Reports

DDT provides inspection for the inlets and outlets of your heater tubes, assessing corrosion, pitting and cleanliness. This information is available in video format, providing you with a true and superior view of the inside of your heater tubes.

DDT will fully restore your heater tubing to:

  • Complete deposit removal
  • Increased fired heater capacity
  • Greater fired heater run-length
  • Lower fuel usage
  • Higher heat fluxes
  • Shorter fired heater down-time
  • Longer tube life
  • Reduced environmental emissions
  • The oldest and most experienced pigging company in the world
  • The only company that has patented four pump pigging trailers of 1200 HP


Decoking Descaling Technology Inc. (DDT) possesses the most advanced system for off-line decoking of fired heaters, removing the hardest coke and scale deposits in pipelines or commercial fired heaters using patented cleaning tools called DDT Piggs®.