Measuring Wall Thickness in Oil Refineries  

At Cygnus Instruments, we pride ourselves on being the pioneers of the cutting-edge digital Multiple Echo testing standard. And we’ve designed and manufactured a range of ultrasonic thickness devices for use in all manner of environments, including those perfectly suited for use in oil refineries. 

Our expertise ensures that measuring wall thickness is not just a task but a precise science, yielding reliable and accurate results. For professionals seeking unparalleled quality in thickness measurement solutions, our highly trained team is ready to assist. Feel free to reach out to us on +44 (0) 1305 265 533 for a consultation tailored to your unique needs. 

The Best Choice for Tools for Measuring Wall Thickness in Oil Refineries 

Oil Gas PipelinesMeasuring wall thickness in oil refineries isn’t just a task – it’s an art and a science that ensures the safety, efficiency, and longevity of critical infrastructure. With the right tools and expertise, this process can significantly mitigate risks associated with corrosion and wear. But how do you choose the right gauge amidst a sea of options? 

And what makes our range of gauges stand out in this highly specialised field? Moreover, if you’re new to the term, you might wonder what NDT (Non-Destructive Testing) really entails and how important it is in the world of ultrasonic thickness testing. 

Keep reading as we delve into these topics, guiding you through the intricacies of choosing the perfect tools and techniques for your refinery’s needs. 

Choosing the Right Gauge for Taking Wall Thickness Measurements in Oil Refineries 

When it comes to selecting the right gauge for measuring wall thickness in oil refineries, several crucial factors demand attention. Firstly, consider the environment’s conditions – high temperatures, corrosive substances, and confined spaces may necessitate specialised equipment. 

Secondly, gauge accuracy and reliability are paramount for ensuring precise measurements that inform maintenance schedules and prevent catastrophic failures. Additionally, compatibility with Non-Destructive Testing (NDT) methods is essential, enabling thorough inspections without disrupting operations. In the next section, we’ll discuss NDT principles and their role in refinery maintenance. 

User-friendliness and durability play vital roles in enhancing efficiency and reducing downtime. Ultimately, by evaluating these considerations, refinery professionals can confidently choose a gauge that not only meets their immediate needs but also aligns with long-term maintenance strategies, ensuring the integrity and safety of critical infrastructure. 

What is NDT (Non-Destructive Testing)? 

NDT, or Non-Destructive Testing, is a vital technique used across industries, including oil refineries, to assess the integrity and reliability of materials and structures without causing damage. It involves various methods, with ultrasonic testing being one of the most common. 

Ultrasonic waves are emitted into the material being tested, and their reflections are analysed to determine properties such as wall thickness and the presence of defects or anomalies. NDT plays a crucial role in ensuring the safety and efficiency of equipment and infrastructure by detecting potential issues early on, allowing for proactive maintenance and minimising downtime. 

Additionally, NDT accessories, such as probes and couplants, enhance the capabilities of testing equipment, enabling more precise and comprehensive assessments. Whether it’s for routine inspections or in-depth evaluations, NDT offers a non-invasive, cost-effective solution for maintaining the integrity of critical assets in oil refineries and beyond. 

Recommended Gauges for Taking Wall Thickness Measurements in Oil Refineries 

In oil refineries, we supply a range of top-notch ultrasonic gauges, including: 

These gauges excel in precise measurement of wall thickness and come with a variety of testing accessories for comprehensive testing solutions. 

Cygnus 1 Ex 

Introducing the Cygnus 1 Ex Ultrasonic Thickness Gauge – an indispensable tool engineered to excel in the harshest environments, including Zone 0 Explosive Atmospheres. With certifications from ATEX, IECEx, and UKEX, this rugged handheld instrument ensures reliable thickness measurements in fuel depots, chemical plants, refineries, and more. 

Its innovative design incorporates the Cygnus High Temperature Ex Probe, enabling continuous measurement on hot assets without the need for hot work permits. 

Featuring three measuring modes tailored for different levels of corrosion and materials, the Cygnus 1 Ex offers unparalleled versatility. Its Deep Coat function effortlessly ignores thick coatings, while the Manual Measurement Mode allows for customised configuration. Visual measurement verification is made easy with live A-Scans and B-Scans, providing dynamic views and cross-sectional representations. 

User-friendly controls, including four function keys, streamline operation, while the User Access feature ensures data security with customisable access levels. Additionally, the instrument’s solid-state electronic design and rugged IP67 rated enclosure guarantee durability in the most demanding conditions. 

With Bluetooth connectivity for seamless data transfer to CygLink, the Cygnus 1 Ex is available in multiple variants, each offering upgradeable features to suit evolving testing requirements. Experience unmatched precision and reliability in thickness testing with the Cygnus 1 Ex Ultrasonic Thickness Gauge. 

Cygnus 4+ General Purpose 

Next up, we have the Cygnus 4+ General Purpose thickness gauge. This testing gauge is designed for a multitude of industries requiring precise thickness measurements. Crafted to withstand the harshest conditions, this gauge boasts a rugged yet lightweight design, perfect for plant maintenance, civil engineering, ship inspections, and more. 

Its versatility shines through its multiple operating modes, including Multiple-Echo mode for accurate through-coat measurements and Echo-Echo mode for heavily corroded metals. With a Deep Coat function that ignores coatings up to 20mm thick and manual or automatic gain control, the Cygnus 4+ ensures unparalleled accuracy in thickness assessment. 

But what truly sets it apart is its compatibility with the Cygnus High Temperature Probe, allowing for in-service thickness surveys of high-temperature assets without the need for shutdown or isolation. This feature alone makes it an invaluable asset across refining, oil and gas, energy, and process sectors. 

Plus, with a large, sunlight-readable display and water and dust-tight IP67 housing, it’s built to thrive in any environment. Experience peace of mind knowing that the Cygnus 4+ is shockproof, impact-proof, and certified for safe operation in explosive atmospheres. With the option for one or two-point calibration and the ability to upgrade to the 6+ model, it’s a true investment in precision testing. 

Cygnus 6+ PRO 

The Cygnus 6+ PRO thickness gauge stands as the pinnacle of innovation in ultrasonic measurement technology, tailored specifically for professional users. Boasting an impressive array of features, including A-scan, B-scan, and comprehensive data logging capabilities, it’s the ultimate tool for precision measurement in various industries. 

Equipped with the Cygnus High Temperature probe, this gauge transcends limitations by enabling measurements of remaining wall thickness in high-temperature, in-service assets – without the need for shutdown or isolation. 

Designed to excel in demanding environments such as high-temperature process plants, ship surveys, and oil and gas facilities, the Cygnus 6+ PRO is a versatile companion for plant maintenance, civil engineering, and ship inspections alike. 

Its advanced features, including Multiple-Echo mode for accurate through-coat measurements, Temperature Compensation for hot materials, and Deep Coat function for ignoring thick coatings, ensure unparalleled accuracy and reliability in testing scenarios. 

With additional benefits like Bluetooth™ for seamless data transfer, a water and dust-tight IP67 housing, and safe operation in explosive atmospheres, this gauge sets the standard for ruggedness, reliability, and performance. Experience the future of ultrasonic testing with the Cygnus 6+ PRO – where precision meets durability, and innovation meets industry demands. 

Why Should You Buy Wall Thickness Measurement Equipment from Us? 

Founded in the southwest of the UK, Cygnus Instruments has evolved from its origins in ship hull NDT to become a global leader in ultrasonic testing (UT) equipment across diverse industries worldwide. With a history rooted in providing robust and user-friendly units for ship surveyors and commercial divers, our commitment to reliability, accuracy, and ease of use has shaped every product we offer. 

Our pioneering “Multiple-Echo” UT technique, developed in the 1970s, remains a hallmark of our innovation, endorsed by major Classification Societies to this day. Today, we continue to expand our product range through extensive market research and customer feedback, ensuring our devices meet the rigorous demands of industries such as oil & gas, marine, and transportation. 

From explosive environments to subsea inspection and asset integrity maintenance, our ultrasonic thickness gauges and specialised equipment set the standard for accuracy and usability. With ISO-9001 certification and a dedication to quality, Cygnus Instruments is trusted by professionals worldwide for their testing needs. 

So, if you’re in the market for ultrasonic thickness testing equipment to use in oil refineries, look no further than Cygnus Instruments. 


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We’re dedicated to offering comprehensive support. Our website hosts a wealth of resources, including technical support, service centre locations, detailed product manuals, and an extensive FAQ section, all designed to assist you in getting the most out of our ultrasonic thickness measurement solutions. 

Customer Reviews 

We’re proud to share the glowing reviews from our customers on our website, reflecting our commitment to excellence in ultrasonic thickness measurement solutions. Their testimonials highlight our products’ reliability and our team’s expertise, underscoring the trust and satisfaction that Cygnus Instruments has cultivated over the years. 

Contact Our Ultrasonic Thickness Gauge Company Today! 

Should you require expert advice on selecting the ideal equipment for measuring wall thickness within oil refineries, we’re here to help. Our dedicated team at Cygnus Instruments is on hand to provide you with tailored solutions that meet your specific needs. 

Don’t hesitate to get in touch with us on +44 (0) 1305 265 533 or drop us an email at For your convenience, we also offer a contact form; it’s a straightforward way to reach out to us with your enquiries. We’re committed to assisting you in finding the perfect measuring tools for your refinery’s requirements.