WUT Series Automatic Ultrasonic Inspection System for Welded Pipe




– Spiral welded pipe(Double submerged arc weld、Pre-finish welding and so on weld bead and the full length over the pipe automatic ultrasonic testing

– Longitudinally welded pipe (JCOE JOE) weld bead ultrasonic detection

– ERW, HFW and other ERW pipe automatic detection system


Inspection Technology

1) Weld longitudinal and transverse defect detection, Weld blunt tandem border detection and weld heat-affected zone layered detection

2) Blind tube end:Longitudinal and layered detection ≤ 50mm

Transverse detection: ≤50+2×T(T is thick pipe)

3) Detection method

Spiral welded pipe: water membrane coupling type

Longitudinally welded pipe: Water membrane coupling type or water jet membrane coupling type

ERW pipe: water jet membrane coupling type


Test Standard

API SPEC 5L 《Specification for Line Pipe》(45th Edition)

DEP31.40.20.37 (2011)《Shell pipeline specification》

ASME A578/A578M-96  ASTM A53  ASTM A500  JIS G3444  GB/T 3091

Q/SY GJX 101-2010《China oil pipeline construction project department gas pipeline with steel pipes General technical conditions》

Technological advantage

1) Instrument parameters: Can meet eu standards(EN12668-1), and the standard factory inspection, while providing European standard certificate.

2) Inspection Speed( repeat frequency): The line speed of up to 60 m/min, Repetition frequency up to 5 KHZ(And the detection rate is closely related to the technical specifications for the repetition frequency)

3) Channel independency: Strict independence between channels, each channel has its own existence independent transmit and receive timing control

4) Instrument scalability: To meet the higher testing standards or the actual needs of users, the number of channels can be expanded.

5) Modular design: convenient service

6) laser tracking: Dynamic Tracking Accuracy: ±1mm,

Tracking range: ±100mm,

Tracking speed: ≥80mm/Secs(Independent research and development of a complete set of system)

7) Machine design、processing、installation and debugging:large mechanical design team,Trusted cooperative processing units, assembly debugging standard management, accumulated a wealth of experience in similar projects, supporting the well-known brands purchased parts.

8) Control segment: using well-known brand components and customer production lines matching OP operator terminal display operating status and fault information standard design


The Mechanical Structure Form

1) Gantry beam type (traditional)

2) Truss structure

3) Sidewall beams form

4) Can also be customized according to the specific requirements of the user site



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