Advanced & Mechanised NDT - Tank floor Inspection (Floor & Wall)

Tank Floor MFL scanning is a non-destructive examination method which uses a magnetic field to detect corrosion and pitting in carbon steel.  A powerful magnet is scanned close to the surface to ‘saturate’ the steel with the magnetic field.

Remote access UT crawler designed to present A and B-scan imaging on above ground Ferro-magnetic structures, such as storage tanks, limiting the need for costly scaffolding or rope access associated with UT wall thickness gauging.

Advantages:

• Fast method for inspecting large areas
• Yields reliable and economic qualitative tank floor assessments. High sensitivity: acceptable sensitivity can be obtained through up to 0.500” of combined steel and coating thickness
• Requires access to only one side of the material

• Not a quantitative technique for identifying remaining wall thickness, (Tank Floor Scanner)
• Requires ultrasonic follow up where indications of wall loss are found
• Cannot differentiate between soil side and product side indications
• Poor surface conditions (scale, debris, roughness, and certain coatings) may limit the integrity of the inspection