API 653 Storage Tank Inspection

The API code 653, «Inspection, Repair, Alteration, and Reconstruction of Tanks», describes the minimum requirements to maintain the integrity of atmospheric storage tanks that are above ground (AST Aboveground Storage Tanks) after they have been put into service. This code includes the inspection, repair, alteration and rebuilding of tanks.

Grupo PIESADEC has more than 10 years of experience inspecting storage tanks following the guidelines of API-653.

The services we employ for tank evaluation include:

  • Floor inspection of storage tanks with Floormap 3Di-R equipment.
  • Evaluation of welded joints with vacuum box.
  • Measurement of thickness in bottom plates.
  • Measurement of thickness in the roof and envelope plates with remote ultrasound.
  • Peaking and Banding.
  • Volumetric calibration.
  • Background evaluation.
  • Visual inspection.
  • Evaluation of floating dome, slopes and pontoons.
  • Technical recommendations and results prepared by the API 510 inspector.
  • Inspection of welds with PT and / or MT.
  • Carrying out metallography and hardness measurement.