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Wuhan Zhongke Innovation Technology Co., Ltd. Wuhan Zhongke Innovation Technology Co., Ltd.

Home > Products > Multi-Chanel Automatic Testing Equipment > Ultrasonic automatic testing equipment series for pipes > Ultrasonic automatic testing equipment for WUT type welded pipe

Ultrasonic automatic testing equipment for WUT type welded pipe

Ultrasonic automatic testing equipment for WUT type welded pipe (spiral, longitudinal submerged arc and high frequency resistance welded pipe)

Application area

◆ Ultrasonic automatic testing for spiral welded pipe (double-sided submerged arc welding, pre-precision welding, etc.) weld and the full pipe. 

◆ Ultrasonic automatic testing for longitudinal welded pipe (JCOE, UOE, etc.) weld and full pipe.   

◆ Ultrasonic automatic testing for ERW/HFW resistance welded pipe weld and the full pipe. 

Product Navigation

  • Products Description
  • Performance Feature
  • Technical Parameters
  • Online Video

Detection Process

◆ Weld longitudinal and transverse defect detection, tandem detection of weld blunt edge area and delamination detection of weld heat affect zone

◆  Blind zone of tube end: longitudinal and delamination detection ≤ 50mm; transverse detection ≤ 50+2×T (T is the wall thickness)

◆ Detection Method: spiral weld: water film method

  Longitudinal welded pipe: water film method or water jet method         

    ERW/HFW welded pipe: water jet method     


Detection Standard

◆ API SPEC 5L 《Steel pipe specification of pipe line》(45 Edition) 

◆ DEP31.40.20.37 (2011)《Pipe specification of shell pipe line》 

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

◆ Q/SY GJX 101-2010《General technical requirements for steel pipes for natural gas transmission pipelines of the China Petroleum Pipeline Construction Project Department》


System Software (Function description,interface display)

1.The automatic detection results can be stored and printed, and the detection records (detection curves and related data) can be stored on the storage medium. The industrial computer could permanently store the continuous detection records. When the test results need to be modified, password authorization was needed.
2.Instantly display the quantity of genuine products and rejects in the flaw detector.
3.In the process of automatic detection, the system will automatically generate an audible and visual alarm when it detects defects or delamination and poor coupling thickness measurement.
4.The system has a pre-alarm function. The pre-alarm line can be set at will, but it must be lower than the alarm line.
5.After the sample tube calibration is completed, the relevant parameters can be stored in the industrial computer for use when the same specification is tested next time.




The form of mechanic structure

◆ Gantry beam type (traditional type)

◆ Truss structure form

◆ Lateral beam form

◆ It can also be customized according to the specific requirements of the user on site


Technical key points

◆ Instrument parameter: Meet the European Union standard (EN12668-1), and the factory inspection is according to this standard, the European standard inspection certificate can be provided at the same time;  

◆ Detection speed:The detection linear speed is up to 60m/min, and the repetition frequency is up to 5KHz;

◆ Channel independence: The channels are strictly independent, each channel has its own independent emission and reception timing control;

◆ Instrument scalability: The number of channels can be expanded according to the actual needs of the user or meeting higher testing standards;

◆ The instrument adopts modular design, maintenance is convenient and quick;

◆ Laser tracking: tracking dynamic accuracy: ±1mm; tracking range: ±100mm; tracking speed: ≥80mm/sec;

◆ Mechanical design, processing, installation and debugging: experienced mechanical design team, trustworthy collaborative processing unit, standardized management of assembly and debugging, accumulated rich experience in similar projects, well-known brand of matching outsourcing parts;

◆ Control part: using domestic and foreign well-known brand components, the control program is in accordance with the beat of customer's production line, fully protecting the safety of personnel and equipment, and the operation is humanized. The OP operation terminal displays the operation status and fault information.

Technical Specifications


Technical Parameter

Steel pipe diameter(mm)




Steel pipe length (mm)


Weld width(mm)


Weld reinforcement(mm)


Wall thickness(mm)

Spiral steel pipe:6.0~25.4mm

Longitudinal steel pipe:6.0~40.0mm

Steel pipe straightness

Less than 0.2% length of pipe

Weight of single tube(max)


Speed of flaw detection(m/min)


Maximum pitch of spiral welded pipe(mm)2300
Spiral seam forming angle40°~75°(rotate left/rotate right)

Tube temperature in flaw detection   area



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