TDW provides hot tapping services and equipment that enable pipeline owners and operators to safely, efficiently, and cost effectively perform pipeline modification and repair activities without shutdown and with minimal disruption to product flow.

In addition to saving pipeline owners and operators time and money by eliminating the need to blow down miles of line in between valves, line isolation plays an integral role in performing a variety of both planned and unplanned activities, including routine maintenance, new construction, expansions, and emergency interventions.

TDW designs and manufactures high-performance valves that improve safety and efficiency when conducting tapping and isolation operations on in-service pipelines, tanks, and storage vessels.

TDW designs and manufactures a full suite of low-pressure fittings that enable operators to perform work on pipelines, tanks, and storage vessels without shutdown.

Developed through more than 95 years of experience in the pipeline industry, high-pressure fittings from TDW are furnished with patented features that can help operators safely and efficiently repair and maintain high-pressure lines without shutdown or interruption of service.

Repairing defects, dents, gouges, corrosion, and leaks in pipelines can be a costly and resource-intensive task. For more than 60 years, TDW has worked to make that task less costly and more efficient by offering a range of repair and reinforcement products that are capable of permanently restoring pipelines to their maximum operating pressure without having to replace the entire section.

In-service pipeline welding requires a great deal of knowledge, experience, and expertise to be completed safely and cost-effectively. Improper execution of welding can present any number of risks - from burn-through to hydrogen cracking to material degradation - that can compromise the integrity of the pipeline, as well as the safety of the people and environment around it.

TDW provides the most comprehensive hot tapping, plugging, pigging, and composite wrap installation instruction available in compliance with Department of Transportation covered tasks standards requirements.

TDW manufactures one of the industry's widest ranges of purpose-built pigs. This vast inventory includes cleaning, batching, gauging, liquids displacement, and specialty pigs, available in multiple diameters and designed to meet specific pipeline and product demands. Customization and configuration options ensure tailored solutions for even the most complex pipeline conditions.

Pig passage indicators - commonly referred to as PIG-SIGs, a term TDW originated more than 60 years ago - accurately detect pigs, spheres, scrapers, and other tools as they pass distinct points along the pipeline.

Pig tracking equipment enables operators to detect the exact location of pigs as they travel through the pipeline. By utilizing this technology, pipeline operators or service crews can respond rapidly to stalled pigs, which may pose an operational risk to the pipeline.

The ability to pig a pipeline for cleaning, maintenance, and inline inspection (ILI) is essential to integrity assurance. But a lack of launchers and receivers - the equipment that allow pigs, spheres, and ILI tools (often referred to as smart pigs) to enter and exit the pipeline while product flow continues - makes pigging impossible.

Regular cleaning of pigs and other job site tools has an additional benefit: it extends their lives and helps avoid repair and replacement costs. With the TDW solvent-free, automated pig washer, pipeline owners and operators can efficiently and effectively maintain pigs and other tools at their shop or service center.

One of the most critical operations in pigging is opening the closure, which provides access to the pig trap during both launch and recovery operations. When the closure door is opened during the insertion or removal of a pig, there is a risk of explosive gas-air mixture.

A well-planned, regular pigging regimen can help operators prolong the life of their pipelines, save money, maintain product flow, and minimize product sediment. TDW has more than seven decades of experience designing, manufacturing, and using pigging products, and our experienced technicians will work with operators to select the right pigs - and the right pigging program - for their pipeline and product.

TDW provides the most comprehensive hot tapping, plugging, pigging, and composite wrap installation instruction available in compliance with Department of Transportation covered tasks standards requirements.

With more than 800,000 kilometers (500,000 miles) of inline inspection (ILI) completed, TDW has the experience and expertise to help pipeline owners and operators achieve system integrity and reliability, resulting in an extension of the asset lifecycle. Our dedicated personnel - powered by knowledge and focused on mitigating risk - partner with you to meet rigorous safety, regulatory, operational, and corporate demands.

In-situ non-destructive evaluation (NDE) methods are used to verify and drive the accuracy of inline inspection (ILI) results while pipelines remain in service, enabling you to better characterize defects, prioritize repairs, and keep your product flowing.

Field-proven with hundreds of offshore projects, SmartPlug double block and monitor (DBM) technology minimizes platform downtime by enabling operators to isolate pressurized pipelines so equipment maintenance, repairs, and replacements can be done without bleeding down the entire system.

The SmartTrack^TM two-way communication system enables pipeline operators to improve the safety of pigging operations by providing real-time monitoring of pigs and tools within the pipeline. Not only does the SmartTrack system accurately track, position, and identify pigs and tools in thick-wall buried or subsea pipes, it can also be used to track and identify all SmartPlug isolation tools.

For more than five decades, TDW has helped pipeline owners and operators overcome complex subsea challenges - from tie-ins and decommissioning to pipeline emergency repair - efficiently and cost-effectively.

Feasibility studies help pipeline owners and operators determine the most viable and safest solutions for offshore interventions, including the specific application of SmartPlug isolation technology and the SmartTrack pig tracking system.

By preventing flooding as a result of wet buckle during offshore pipe lay operations, the SmartLay system mitigates risk to the pipe lay vessel and crew, protects as-laid pipeline, and helps pipeline owners and operators eliminate costs associated with standby dewatering spreads. SmartLay technology can be used in either shallow or deep waters.

Almost a century ago, T.D. Williamson set out on a mission: to make pipelines safer and more efficient by providing excellent products and services. Today, TDW is still a privately owned family business constantly improving on those same things. And thanks to our employees, our customers’ pipelines are safer and more efficient than ever.

We are always looking for top talent to join our global team. Want to launch an exciting career with plenty of opportunities for growth and development? You've come to the right place. From here, you can browse our job openings, join our talent network, and choose how you'd like to connect with us and apply for your dream job.

At TDW, we envision that our employees can be a positive force for change in the regions around the world where we operate, providing opportunies for all people to succeed. Giving back to our global communities is more than a philosophy: it speaks to our values and our legacy. We encourage our employees to take initiative in making a difference in the lives of our neighbors.

TDW is proud to support various programs and initiatives that promote positive development within our neighborhoods and raise awareness about issues facing our communities.

At TDW, our employees are at the heart of everything we do. This is especially true in the Global Community Relations Department: like our founders, we recognize the importance and value of each employee. We also understand that our dynamic organization depends on developing up-and-coming talent to ensure our future workforce.

At TDW, our approach to HSE is about more than inspections and checklists or waiting for bad things to happen. It's about having a complete picture of how we're doing and an understanding of what we need to improve.

Ensuring a consistently high level of quality for TDW products and services begins with a thorough understanding of customers' needs, expectations, demands, and challenges. TDW cultivates this through day-to-day work interactions and ongoing communication.

Pipelines are the infrastructure of the developed world. They fill a crucial need – to bring energy to those who use it every day, from home cooks to large-scale industries. And TDW has been there from the start.

T.D. Williamson, Sr., started The Petroleum Electric Company on January 2, 1920. The electrical contracting firm served the emerging petroleum industry by supplying electric motors, electric generator stations, and other oil field applications.

Across six continents and in dozens of countries, T.D. Williamson helps pipeline operators safely optimize throughput, maintain integrity, and extend asset life. If you're interested in finding and contacting a TDW location near you, click Learn More.