High Duty Truss-Structure Welded Pipe Flaw Detector,Truss Type Welded Pipe Ultrasonic Flaw Inspection Machine

Equipment Composition

• Pipe Rotation & Feed System
• Multi-Channel Ultrasonic Probe Array
• CNC Servo Traverse Beam
• Ultrasonic Data Acquisition Unit
• Auxiliary Systems

Product Introduction

Overview

Our Heavy-Duty Truss-Structure Welded Pipe Ultrasonic Flaw Detector is a fully automatic CNC-controlled NDT system designed for 100% volumetric inspection of medium and large-diameter production tubing.

Fitted with high-performance ultrasonic transducer arrays, it delivers high-sensitivity detection for longitudinal cracks, transverse fractures, inclined flaws and internal laminar delaminations. The unit performs accurate full-length wall thickness measurement simultaneously with flaw detection within one inspection pass.

All inspection procedures and data recording fully conform to official API 5CT and API 5L standards, satisfying rigorous quality control requirements for OCTG manufacturers across the global oil and gas sector.

Working Principle

The machine operates on the ultrasonic pulse-echo technique. High-frequency ultrasonic waves (2–5 MHz) are generated by piezoelectric probes and transmitted into the pipe wall via water-coupling.

No defect: Ultrasound travels through the wall and reflects from the inner surface, producing a back-wall echo.
With defect: Waves reflect earlier at discontinuities (cracks, inclusions, laminations), generating a defect echo before the back-wall signal.
The system calculates defect depth, size, and position based on echo time and amplitude, enabling accurate, repeatable, and high-speed inspection.

About GH-Petro

GH-Petro supplies customized ERW & OCTG pipe mill solutions.We combine domestic craftsmanship and international leading technologies to deliver high-quality equipment and reliable services.

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Order Process

1️⃣ Send Your Inquiry
Tell us your product needs and order details.

2️⃣ Confirm the Solution
We recommend the right product and confirm the price.

3️⃣ Production & Quality Check
We arrange production and check the quality before delivery.

4️⃣ Shipping & Support
We ship the goods and provide after-sales support.

Simple. Fast. Reliable.

Frequently Asked Questions

What types of pipes mill do you supply?

We are a professional manufacturer and we could supply customized mill for ERW pipes and full-range OCTG pipes to meet your request,which include Entry Section,Forming&Sizing,Solid State HF Welder,Straightening Machine,Cold Flying Saw,End Facing Machine,Hydro-tester,UT Flaw Detection Machine,Threading Machine,Bucking Machine and Pipes Packing Machine.

What is your MOQ for Mill orders?

MOQ is flexible for us and one set is feasible.Of course our team also could supply you a complete solution according to your request.

Which standards do your pipe mill machines follow?

All kinds of our equipment are designed for producing pipes meeting API 5CT, API 5L, ASTM, EN, ISO and GB standards, suitable for oil & gas, pipeline, structural and industrial pipe applications.

Can you provide turn key ERW & OCTG pipe mill projects?

Yes. We offer full turn key solutions including process design, equipment manufacturing, installation guidance, commissioning, operator training and after sales service.

Do your machines support high grade OCTG production such as N80, L80, P110?

Absolutely. Our heat treatment and forming systems are specially engineered for high strength steel grades required for deep well oil and gas OCTG pipes.

What payment terms do you accept?

T/T, L/C at sight are available. Flexible payment terms can be discussed for large scale turn key projects.

What is your warranty period?

We provide 12 month warranty for core components from the date of shipment, with lifelong technical consultation and spare part supply service.

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