HMT LLC.

Guided Wave Inspection (GUI/LRUT): An Advanced Low-Frequency Ultrasonic Technique

Guided Wave Inspection, also known as GUI/LRUT, is a cutting-edge low-frequency ultrasonic wave technique designed to swiftly survey pipes. Its primary goal is to identify potential internal and external corrosion, ensuring the integrity of critical infrastructure.

Key Applications:

• Surveying long runs of piping, including those located in pipe/sleeper racks.
• Assessing pipes in soil-to-air interfaces.
• Inspecting underground piping, cased piping, and earth dike crossings.
• Detecting point contact corrosion.
• Supporting retro PMI (Positive Material Identification) projects, such as identifying welds beneath the insulation.
• Examining limited-access piping, especially those in overhead lines.
• Conducting inspections for CUI (Corrosion Under Insulation) to prevent hidden corrosion issues.

Guided Wave Inspection is your trusted ally for comprehensive and efficient pipe assessment, serving a wide range of applications to safeguard infrastructure and prevent corrosion-related challenges.

Phased Array Ultrasonic Testing (PAUT): A Visual Insight into Material Integrity

Phased Array Ultrasonic Testing (PAUT) is a sophisticated method that harnesses the power of multiple shear (transverse) waves originating from a single transducer housing. These waves create an array of angles, which are then transformed into a color-scale image. This innovative approach provides a visual representation of any indications discovered within a test specimen.

Key Applications:

• Ideal for ASME B31.1 and B31.3 piping construction projects.
• Frequently used alongside Time of Flight Diffraction (TOFD) in ASME Sec. VIII Div. 2 pressure vessel construction projects.
• Trusted in API storage tank construction projects.
• Essential for pre-turnaround and turnaround in-service inspections.
• Multi-Skip Phased Array Testing: Comprehensive Volumetric Screening

Multi-Skip Phased Array Testing is an invaluable tool for conducting full volumetric screening examinations, particularly for the detection of corrosion and pitting. It boasts the ability to fire multiple angles and skips, enabling a thorough volumetric screening, even under challenging conditions such as corrosion deposits, support structures, or tank annular rings.

Key Applications:

• Crucial for in-service inspections of the critical zone from the tank's exterior.
• Offers precision in measuring corrosion beneath the shell-to-floor weld on a tank, starting from the tank chime.
• Highly effective in detecting and measuring corrosion beneath pipe and tank supports, repads, and blisters.

Phased Array Ultrasonic Testing and Multi-Skip Phased Array Testing are the advanced techniques of choice for professionals seeking a detailed and accurate understanding of material integrity in a variety of applications.

Automated Ultrasonic Testing (AUT), often known as corrosion mapping (C-Scan), is a cutting-edge, fully automated ultrasonic inspection technique. It leverages a state-of-the-art multichannel ultrasonic imaging system and robotic scanners with encoded precision to reveal critical insights into material degradation. These insights encompass erosion, corrosion, hydrogen blisters, hydrogen-induced cracking (HIC), and interlinked cracking issues.

Key Applications:

• Valuable for corrosion mapping and flaw detection on tank shells and roofs, as well as spheres and vessels.
• Ideal for corrosion mapping and flaw detection on piping, especially for pipes with a diameter of up to 4 inches.
• Enables external inspections instead of internal ones.
• Proven effectiveness in challenging, difficult-to-access locations, even with as little as 3 inches of clearance.

Automated Ultrasonic Testing and Corrosion Mapping represent the pinnacle of ultrasonic inspection technology. They provide unmatched precision and efficiency for assessing material integrity and uncovering corrosion-related concerns in a variety of critical applications.

Computed Radiography Testing (CRT) is an advanced imaging technique that relies on reusable digital imaging plates. These plates are scanned to generate high-resolution digital images, providing a powerful means of swiftly identifying defects, cracks, or irregularities within a diverse range of materials. CRT plays a crucial role in quality control and flaw detection.

Our CRT services are finely tailored to address your specific needs, ensuring that your materials and structures consistently meet the most stringent standards and requirements. We are dedicated to assisting you in upholding the highest levels of safety, compliance, and performance.

Advantages of CRT:

• Digital Precision: CRT delivers crystal-clear digital images, enabling precise defect detection and in-depth analysis.
• Reusable Plates: Bid farewell to the inconveniences and expenses associated with film-based radiography. CRT plates are not only reusable but also environmentally friendly and cost-effective.
• Rapid Results: CRT facilitates swift image capture and analysis, minimizing downtime and expediting decision-making.
• Versatile Application: CRT is suitable for inspecting a wide spectrum of materials, rendering it an indispensable tool for quality control across various industries.

Computed Radiography Testing is your trusted partner for achieving precision and efficiency in quality assurance, ensuring that your products meet the highest standards of reliability and safety.

Digital Radiography Testing (DRT) is the go-to solution for achieving unmatched clarity when it comes to identifying defects within a wide range of objects. From welds and pipelines to aerospace components and more, DRT excels at revealing cracks, voids, inclusions, and other imperfections in striking detail. This precision empowers you to make informed decisions and take accurate actions with confidence.

DRT distinguishes itself from traditional film-based radiography by harnessing the latest digital technology to capture exceptionally detailed X-ray or gamma-ray images.

Advantages of DRT:

• Reduced Radiation Exposure: DRT minimizes risks while maximizing results, offering lower radiation exposure compared to traditional radiography methods.
• Faster Results: DRT is your trusted partner for rapid results, saving you valuable time and money.
• Electronic Image Storage and Sharing: Seamlessly store, analyze, and share your digital radiography images, fostering collaboration and enhancing documentation capabilities.

Digital Radiography Testing is your ultimate choice for inspections that demand precision and clarity, ensuring that you maintain the highest standards of safety and quality.

HMT stands as a frontrunner in the realm of drone inspection and imaging services. With a commitment to excellence, they employ cutting-edge equipment and seasoned FAA-certified pilots who boast top-tier expertise in their field. Following data collection, all information undergoes thorough analysis and processing by licensed engineers and certified inspectors to ensure the highest standards of reporting.

Key Services:

• Internal Out-of-Service Tank Inspection: HMT's caged drone system eliminates the need for confined space entry or scaffolding for roof and rafter inspections, enhancing safety and efficiency.
• External Visual Inspections: This service covers vessels, piping, or towers at heights, removing the necessity for scaffolding or rope-access services, and saving time and resources.
• Facility Mapping and 3D Modeling: HMT leverages LiDAR (Light Detection and Ranging) sensor payloads to create facility maps, P&ID (Piping and Instrumentation Diagram) designs, and 3D models, providing invaluable insights for efficient operations.
• Thermographic Assessment: With a FLIR (Forward Looking Infrared) thermographic camera payload, HMT assesses refinery flares, steam systems, and structural integrity, identifying weaknesses or deformations with precision
• Photogrammetry for Topographical Mapping: HMT utilizes photogrammetry techniques to create detailed topographical maps of areas and facilities, aiding in planning and development.

HMT's drone inspection and imaging services set the standard for quality and innovation. Their commitment to cutting-edge technology and experienced professionals ensures that clients receive accurate, timely, and valuable insights for their projects and operations.