MFL - Magnetic Flux Leakage tube testing technique utilizes strong permanent magnets to magnetize conductive tubes, e.g. Carbon steel tubes. When discontinuities such as corrosion and material loss are located between the magnets, the magnetic field in the tube material is disturbed and a small amount of flux leaks which is detected by the sensors. The variation of flux leakage induces current in the detector coils that is converted into output signals.

MFL is most ideal for rapid inspection of Aluminum finned tubes and all ferromagnetic heat exchanger tubes, ideal for detecting corrosion, erosion, pitting and circumferential cracks, is optimized for internal and external discontinuities.


Related Service

Internal Rotary Inspection System for Ferrous and Non-Ferrous Tubes (IRIS)

IRIS – Internal Rotary Inspection System: This is an ultrasonic technique for condition assessment of tubing of all materials....

Learn More
Near Field Testing for Fin-Fan Tubes (NFT)

NFT technology uses two coils, a transmitter and a receiver. Typically, the receiver coil is close to the transmitter coil, taking advantage of the transmitter’s near-field zone ...

Learn More
Remote Field Testing for Ferrous Tubes (RFT)

Remote Field Testing (RFT): This is a fast reliable screening tool for the condition assessment of ferrous tubing (carbon steel, ferritic stainless steel and Duplex).

Learn More