The largest provider of piping services and machine orbital pipe welding

WSI is the largest provider of machine orbital welding and piping services for refineries, nuclear, and fossil plants. Our revolutionary HotPulse^®-enabled orbital automated pipe welding equipment delivers superior mechanical properties and volumetric quality compared to conventional field welding processes, with deposition rates competitive with SMAW and FCAW. This advanced technology has been successfully implemented in several major piping replacement projects, consistently exceeding quality and schedule expectations while ensuring safety.

Benefits of choosing WSI for automated pipe welding services

WSI offers unmatched expertise and advanced technology for automated orbital pipe welding services, ensuring superior performance, safety, and reliability. Our proven track record and comprehensive services make us the trusted choice for planned and emergent projects.

• Expertise in Advanced Materials: Specializing in advanced materials that enhance performance and safety in demanding environments.

• Revolutionary HotPulse^® Technology: Ensures superior weld quality and high deposition rates, ideal for critical applications.
• Proven Track Record: Successfully implemented in numerous major projects, delivering high-quality results on time and within budget.
• Safety and Reliability: Processes designed to maintain the highest safety standards, ensuring reliable and long-lasting welds.
• Comprehensive Services: Expertise and technology to efficiently meet your needs, whether planned maintenance or an emergent repair situation.

For unparalleled machine orbital pipe welding and piping services, plant operators trust WSI to deliver exceptional results during both planned and emergent outages.

Leading the industry in pressure vessel services and life extension

WSI leads the industry in extending the life of pressure equipment with advanced engineering solutions that increase product yields and enhance plant operational reliability. Utilizing our Unifuse® technology, we specialize in pressure vessel services, including repairing and upgrading critical pressure vessels such as distillation units, reactors, coke drums, digesters, and high-pressure separators.

Addressing critical pressure vessel challenges with automated welding

The integrity of pressure vessels is crucial in process industries, where wall thinning, pitting, cracking, and corrosion/erosion pose significant challenges. WSI tackles these issues with our pressure vessel automated welding technology, providing quick, lasting repairs or upgrades.

Permanent pressure vessel repair solutions with Unifuse technology

Our patented Unifuse technology is recognized in process industries for effectively mitigating corrosion in vessel applications. This technology uses a fully fused weld metal deposit of corrosion-resistant alloys applied with proprietary automated welding systems. These systems ensure exceptional weld quality with minimal heat input, allowing the applied thickness to contribute to pressure boundary calculations. Unifuse is preferred among major refiners, delivering substantial ROI across thousands of applications.

Advanced welding machines for improved efficiency

WSI’s state-of-the-art NG4 weld machines feature proprietary design and closed-loop integral custom waveform technology, significantly improving arc time and efficiency while advancing project schedules. Our permanent repair solutions extend the operational lifespan of a wide range of pressure vessels, ensuring effective vessel corrosion mitigation.

Excellence in ASME-certified pressure vessels

WSI South America’s ASME-certified pressure vessels adhere to global quality standards for design and manufacturing. These vessels safely contain liquids, vapors, or gases under high pressures, making them suitable for diverse industrial applications.

Manufactured from carbon or stainless steel, our vessels offer customizable options to meet specific needs such as corrosion resistance, temperature tolerance, and pressure requirements. Our manufacturing processes comply with ASME construction codes and optimize your construction project by executing internal overlays with special alloys to extend vessel service life and enhance performance.

Choosing WSI for your pressure vessel services ensures reliable pressure vessel repair, superior pressure vessel welding, and effective pressure vessel corrosion mitigation.

Protecting upper furnace components with superheater, reheater, and economizer services

With over 30 years of experience, WSI is a leading expert in safeguarding upper furnace components subjected to harsh corrosive and erosive conditions. Our patented Unifuse 360^® technology provides unparalleled protection to superheaters, reheaters, and economizers. With the industry’s largest installed base, our technology has a solid track record of reliability, successfully preserving hundreds of boilers worldwide.

A unique, cost-effective solution for superheater, reheater, and economizer repair

WSI’s Unifuse 360 technology features a fully fused welded bond between the corrosion-resistant overlay material and the tube base material. This patented welding process creates a fully tempered heat-affected zone, allowing the tube to be bent to its final configuration after the coating application. The bond quality achieved with Unifuse 360 is significantly superior to other methods, such as coextruded tubes and tubes heat-treated after overlay application.

Tailored manufacturing for maximum protection

Unifuse 360 can be manufactured in small batches using corrosion-resistant alloys specifically tailored to the corrosive environment of your boiler. This flexibility ensures that the protective overlays are optimized for each boiler’s unique conditions. The technology’s reliability has been proven over decades, offering successful protection for hundreds of boilers around the world.

Leading expert with automated weld overlay technology for upper furnace components

Upper furnace components in boilers face some of the most challenging erosive and corrosive environments. Exposed to flue gas corrosion products and higher operating temperatures than other components like waterwalls, these critical elements also endure high-velocity flue gas particulates due to the area reduction typically designed into the units.

WSI’s Unifuse 360 technology provides the highest level of protection for your superheater, reheater, and economizer services, ensuring operational efficiency and longevity in the toughest environments. Our expertise in superheater automated weld overlay, reheater machine weld overlay, and economizer weld overlay help prevent tube leaks and other common issues, offering comprehensive and reliable repair solutions.