Non-destructive testing (NDT)

As you face multiple challenges, we support you in your NDT throughout the life cycle of your installations to :

• Protect the health and safety of your workers and users
• Ensure the integrity and safety of your equipment
• Identify internal and external defects at an early stage, such as cracks, porosity, corrosion, wear or changes in thickness.
• Prevent breakdowns and accidents
• Reduce maintenance costs (e.g., diagnostics without interrupting operations or dismantling parts)
• Extend the service life of your installations
• Ensure compliance with local and international regulatory requirements

To meet your requirements in terms of NDT, Apave Cameroon mobilizes different methods that guarantee the safety of your industrial equipment without altering it.

Our conventional NDT includes:

• Penetrant Testing (PT): using a penetrating liquid, it reveals any open discontinuities on the surface.
• Magnetic particle inspection (MT) : locates surface or near-surface defects on ferromagnetic materials.
• Ultrasonic testing (UT) : detects internal defects using high-frequency waves
• X-ray inspection (X-rays or gamma rays) : using X-rays or gamma rays to visualize the interior of parts.
• Visual inspection (VT) : this direct surface examination identifies structural or welding defects.
• Eddy current testing (ET): detects surface defects on conductive materials.

With the support of other Apave subsidiaries, we also offer advanced NDT services, essential for predictive maintenance, safety and compliance (in the energy and oil sectors, in particular):

• Multi-element Ultrasonics (PAUT, Phased Array Ultrasonic Testing): these provide detailed cross-sectional images of the inspected structure. Several specific techniques are derived from this, such as PA-CAT (corrosion testing of pipes at their supports).
• Time Of Flight Diffraction (TOFD) : used to detect and accurately size weld defects.
• Multi-element Eddy Current (ECA) : offers wider coverage and better detection than conventional methods.
• Digital radiography: for corrosion monitoring
• Internal inspection of heat exchanger tubes (IRIS Internal Rotary Inspection System): used to inspect heat exchanger tubes.
• HTHA (High Temperature Hydrogen Attack) inspection : used to detect defects caused by high-temperature hydrogen damage.
• MFL (Magnetic Flux Leakage): used to check the bottom of product storage tanks.
• ACFM inspection: this electromagnetic technique detects open surface cracks in metal welds, without removing the paint.