MFL TANK FLOOR SCANNING
APC provides clients API 653 tank bottom inspections using certified technicians and advanced inspection equipment. Magnetic Flux Leakage (MFL) or also known as Magnetic Flux Exclusion (MFE) is a magnetic method of nondestructive testing used to detect product side and soil side corrosion in above ground storage tanks.
The basic principle is based on a powerful magnet
introducing magnetic lines of force (flux) into the steel plates of a tank
bottom. When areas of metal loss are detected the magnetic flux “leaks” know as
flux leakage. Sensors are used to detect these flux leakages. Detected
areas must then be further evaluated “proved up” utilizing Ultrasonic Thickness
(UT) and/or Pit Gauging.
APC utilizes MFE Tank Floor Scanners (with the choice of MFE Mark II or Mark III Tank Floor Scanners).
MFE Mark II Tank Floor Scanners
▪
MFE Electronics Module Compatible ▪
Displays Digital Volume Loss Signals in real time ▪
Adjustable Threshold ▪
Adjustable Display Brightness capable of viewing in
sunlight ▪
Adjustable Gain for improving signal and reducing
noise ▪
Scan speeds up to 3 feet per second ▪
Doubled Magnetic Material in Bridge ▪
Perform through coating inspections ▪ Perform inspections of thicker plate ▪
12” Scan Width ▪ Battery powered for over 12 hours of continuous use
MFE Mark III Tank Floor Scanners
This latest model offers improved inspection results
through coated floors and thicker plates, fully adjustable limits for
enhanced thresholding techniques, as well as the ability to produce
color-coded maps of carbon steel loss across tank floors.
Defects will be mapped using an XY coordinate
system. This will give the tank owner/operator each defects size and location
on each individual plate. This full fingerprint of the tank bottom will
highlight all the areas requiring repair, which are key factors in
determining the tanks corrosion rate and next inspection interval.
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APC MFL Tank Floor Scanning.pdf