Fatigue

When low cycle metal fatigue leads to cracks or seam failures, repairing or replacing entire pipeline sections is often required to avoid costly incidents, including leaks, spills, and other threats to the environment and personnel.

To ensure safe access to work areas, TDW provides isolation technology and hot tapping and plugging equipment and services. With products and personnel support from TDW, Gas Distribution operators can repair or replace pipeline sections while:

  • Protecting the environment.
  • Protecting personnel.
  • Ensuring product continuity.

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TDW offers Gas Distribution market owners and operators hot tapping and plugging (HT&P) solutions for a wide array of pipeline defects and maintenance challenges from dents to corrosion to valve failure. TDW equipment and services are engineered for safety and efficiency, allowing operators to better protect their employees and the surrounding community. 

The HT&P process incorporates a low pressure pipeline fitting, valve, tapping machine, and isolation equipment – all working together to provide a safe and proven isolation solution. Once the area of pipeline that needs work has been safely isolated and evacuated, the line modification can be performed. 

TDW isolation technology plays a critical role in this process, and a temporary bypass allows work to be performed without the need to stop product flow. The TDW STOPPLE® Train isolation system, for example, uses double block and bleed technology to help increase efficiency and safety during pipeline modification. This approach to line isolation, which only requires a single pipeline tap, reduces costs associated with fittings, valves, welding, and inspection services. The bleed port affixed on the line ensures that any product that bypasses the first seal is contained and evacuated through the bleed port, which helps operators better protect people and the environment.

Whether operators are purchasing equipment to perform their own HT&P jobs or turning to TDW to execute the service for them, they can rely on the company’s broad line of equipment and consumables. TDW application engineers are recognized industry experts, ready to assist operators through each project phase — from start to finish