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Heat Exchanger Tube Inspection

Heat exchangers, nuclear reactors, boilers and condensers are used in all fields of energy supply, such as the oil, gas and petrochemical industries. Failure of the tubing within these heat exchangers will result in the undesirable discharge and mixture of the contained media.

Consequences of defective heat exchanger tubing

  • Loss of investment due to damage of high value plant components.
  • Loss of profit due to interruption or complete breakdown of plant production.
  • Increased reject rate due to a mixture of media.
  • Environmental pollution.
  • Loss of image.

Our state of the art corrosion inspection method with the eddy current technique can help avoid costly production disturbances by early detection of possible tube wall damage. This with the advantage of accurate documentation for further preventative maintenance.

KontrollTechnik carries out all inspections with the latest state of the art TMT eddyMax® eddy current computerised technology, which provides fast data acquisition and entire defect result documentation. With 35 years of field experience our operators and analysts ensure a reliable and quality service to all inspection tasks undertaken, no matter how extraordinary the requirements.

Condenser testing, assistant with push-puller

Your Benefit

Safe plant operation

  • Detection of damaged areas
  • Accurate plugging of defective tubes

Comprehensive data for accurate and cost effective decisions

  • Monitoring of tube defect progression and quality
  • Forward planning with precise tube condition information

Excellent cost to profit ratio

  • High inspection speed
  • Low pre-inspection preparation costs
Operator with C-MEC remote field system

Inspection Methods

Accurate choice of inspection method to give optimal defect detection and results.

Conventional eddy current bobbin probe

Conventional Multifrequency Eddy Current

Multifrequency eddy current method for inspection of non ferromagnetic tubes in heat exchangers, condensers, coolers, reactors, heaters, air conditioning coolers.

Magnetic bias eddy current bobbin probe

Magnetic Bias Eddy Current

Magnetic bias eddy current defect detection within ferromagnetic tubes using superimposed DC field magnetization. Sensitive for local defects.

Remote field (RFET / RFEC) eddy current bobbin probe

C-MEC® Remote Field Eddy Current

Multi-frequency remote field eddy current inspection method, for defect detection within ferromagnetic and thick wall non-ferromagnetic tubes.

RotoScan RP Method

C-Scan inspection with rotating eddy current probes, for defect detection in bore holes, pipes and tube expanded zones, within ferromagnetic and non-ferromagnetic materials.

Extended Service

  • Comprehensive data and documentation for further tube defect monitoring
  • Remote controlled manipulator systems

Applications

  • Inspection of straight tubes from diameter > 4 mm
  • Inspection of bent tubes
  • Inspection of boiler tubes
  • Inspection of finned tubes
  • Inspection of air cooler tubes
  • Inspection of the tube expanded zone and welds
  • Remote controlled tube inspection in high radiation areas or areas with difficult access
Eddy current probe rotor
Heat exchanger testing manipulator

Documentation

  • Tube sheet map
  • Coloured defect map
  • Graphical and numerical statistics
  • Single tube monitoring
  • Plugging map by free choice of plugging limits
  • Defect progression map
  • Defect progression statistics
  • Single tube defect progression
WinDevos documentation software