Spiral SAW Pipe Inspection System – Ultrasonic Steel Weld Testing، Pejvak Rayan (FLAW HUNTER SP 9502) is used to detect longitudinal and transverse defects of the welds and HAZ, in spiral pipes in online mode.The Ultrasonic Steel Weld Testing, quality control, and inspection system for Spiralweld Pipe welds is an online and automated system that relies on advanced ultrasonic technology, precise software algorithms, engineered mechanical design, and production line integration capabilities. It provides an unparalleled solution for continuous and accurate weld quality monitoring in Spiral steel Pipe production. This system plays a pivotal role in optimizing the production process, ensuring final product quality, reducing costs, and preventing future operational risks.1
In addition to the aforementioned system, Pejvak Rayan is also capable of designing, manufacturing, and commissioning various ultrasonic testing and inspection systems for billets inspection, plates and sheets inspection, seamless pipes inspection, alloy rebars inspection, and more.2
Spiral SAW pipes, as one of the most critical types of welded metal pipes, play a pivotal role in various fluid transfer processes. These pipes, manufactured using the Submerged Arc Welding (SAW) method with a helical geometry, can withstand high pressure and heavy mechanical forces. Consequently, they are extensively used in strategic industries such as oil and gas transmission, water pipelines, chemical industries, thermal power plants, bridge construction, metal structures, and urban and rural infrastructure projects.1
Given that the weld seam and the Heat-Affected Zone (HAZ) are the most structurally sensitive areas in these pipes, ensuring their complete integrity is a standard manufacturing requirement. International standards like API 5L, ISO 3183, and DNV-OS-F101 mandate Non-Destructive Testing (NDT) to verify the structural integrity of these pipes.2
Among NDT methods, Ultrasonic Steel Weld Testing is recognized as the most accurate technique for identifying volumetric and surface defects in the weld and HAZ.3
Online and continuous Ultrasonic Steel Weld Testing during production allows line operators to assess weld quality in real time and take corrective actions upon detecting defects like cracks, Lack of Fusion, or Lamination. This approach reduces final production costs, prevents the delivery of defective products to customers, and minimizes the risk of functional failure during operation.4
In Ultrasonic Steel Weld Testing, ultrasonic waves are transmitted into the pipe wall by a probe. These waves are reflected upon hitting the inner wall and received by the same probe. The received waves are converted into electrical pulses and sent to the ultrasonic device.1
After amplifying and filtering the received electrical pulses, the ultrasonic device displays them as signals on its screen.2
The device calculates and displays the location of defects by examining the time intervals between the signals received from the inner wall.3
The Spiralweld Pipe Inspection system is an innovative and fully automated solution for Ultrasonic Steel Weld Testing of Spiral SAW Pipe welds, installed in the production line immediately after the welding process. Utilizing Pulse-Echo technology and optimized angled probes, this system accurately detects volumetric, surface, transverse, and longitudinal defects in the weld seam and HAZ.1
Equipped with eight 70-degree angled probes, each connected to an independent channel. These probes are housed in specialized holders using Water Gap technology, enabling precise calibration and stable ultrasonic energy transfer.1
The probe arrangement includes four pairs of separate holders on both sides of the weld area: Two pairs of probes for detecting longitudinal defects (surface and subsurface longitudinal) along the weld line. Two other pairs for detecting transverse defects (perpendicular to the weld line) and internal or external structural defects.2
The system is upgradeable, allowing the addition of 2 to 4 extra diagnostic channels for detecting Disbonding or Delamination at the weld edges.3
This system is designed to be installed close to the weld exit point, minimizing the time lag between welding and inspection for quick defect resolution.4
The common layouts in the test of these pipes are X, K, I layouts, among which the K layout is very common for Spiral steel Pipe.5
Equipped with an automatic Weld Seam Tracking system that accurately follows the weld seam and positions the probes accordingly.1
Digital and continuous recording of results in separate Strip Charts for each channel, with full data traceability.2
Equipped with an automatic paint spray defect marking system that pinpoints the exact location of defects on the pipe surface.3
Simultaneous visual and audible alarms for rapid operator notification upon detecting critical defects.4
Utilizes high-precision digital and electronic filters to eliminate environmental noise.5
Powerful software and electronic filtering capable of completely removing noise from welding machines, plasma cutters, and adjacent electric motors.6
Row | Characteristic Name | Values |
1 | Testable pipe diameters | 16-120inch diameter spiralweld pipe |
2 | Testable product thickness | 4-30 mm |
3 | Testable product material | Carbon steel and alloy steel |
4 | Linear test speed | Up to 40 meters per minute |
5 | Detectable defects | Internal and external longitudinal and transverse N5 grooves and 1.6 mm diameter through-holes |
6 | Test range | Entire weld seam, including the Heat-Affected Zone (HAZ) |
With over a two decade of experience and expertise, Pejvak Rayan is a trusted manufacturer of advanced ultrasonic testing and inspection systems. If you’re looking for precision, reliability, and cost-efficiency، our solutions are built for you.1
Our systems are engineered with the latest technologies and comply with international standards. They are designed for high-accuracy flaw detection and fast processing, compatible with various metal products including pipes, billets, rebars, ingots, sheets, and plates.2
We believe advanced technology should be accessible. That’s why our pricing is highly competitive — especially for companies across Asia — while maintaining superior performance and build quality.3
Our expert engineers provide on-site installation and full training to ensure your team maximizes the system’s potential from day one.4
We don’t stop at delivery. Our dedicated support team offers technical assistance, spare parts, and repair services to keep your operations running smoothly.5
Serving clients across Asia — from Turkey, Pakistan, and the Middle East to India, Southeast Asia, and Central Asia — we are ready to be your reliable partner in ultrasonic testing.1
Experience world-class technology with region-friendly pricing
Contact us today for a free consultation and learn how Pejvak Rayan can upgrade your quality control process
For more information, please send your request to info@pejvakrayan.com
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