The DDT Pigging system is the most advanced cleaning method available for decoking fired heaters and removing hard pipeline deposits unable to be removed by conventional means. It is designed to accommodate interchangeable cleaning appendages and studs, and its patened design allows it to traverse U-bends and short-radius elbows.
The DDT process is bi-directional; allowing the cleaning pigg to traverse the heater tubes or pipeline in both directions. This is the only process with the ability to direct the pigg to focus on areas with increased contamination.
Find out more about DDT Pigging