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ATS performs FAC inspection services for numerous industries. Flow-accelerated corrosion (FAC), also known as flow-assisted corrosion, occurs when fast-flowing fluid or steam dissolves the protective oxide layer on exposed metal, causing an increased corrosion rate. Factors such as flow velocity and turbulence, material composition and geometry, temperature, pH, and dissolved oxygen concentration can affect FAC progression. ATS’ inspection services identify flow-accelerated corrosion before perforation or failure occurs. We inspect a variety of equipment that is at risk of FAC, including:

  • Steam generators
  • Steam piping
  • Condensers
  • Deaerators
  • Thermowells
  • Tube bends
  • Boilers
  • Vessels
  • Sampling nozzles
  • Heater drains
  • Injection quills
  • Pipe bends

Nondestructive Corrosion Testing Methods

Applied Technical Services uses nondestructive testing (NDT) techniques to evaluate client equipment for FAC without causing any unnecessary damage or downtime. Regular inspections help to determine corrosion rates and allow for better maintenance planning. We can gather precision data while minimizing inspection costs using specialized technologies.

Technicians perform visual inspections to check for FAC in large components such as deaerators or other vessels that may be vulnerable. Visual inspection can effectively identify flow-accelerated corrosion and helps to form a plan for any necessary actions. Our qualified experts have extensive experience in assessing FAC and discerning the most economical solution for each client.

Ultrasonic thickness testing is another common FAC detection method. Technicians gather data at regular intervals along the equipment using a grid system. Our experts can use the data to trend corrosion rates and determine where the wall thickness falls below minimum requirements. Phased array corrosion monitoring can also effectively locate FAC. Phased array can be used to scan large areas of piping or other equipment. This method uses multiple elements within an Ultrasonic System along with semi-automated or automated scanners to gather large amounts of data more efficiently. The result is a detailed map of the area outlining thickness measurements in a color-coded image.

Pulsed eddy current inspections examine ferrous metals for thinning on or beneath the surface. This method can detect and measure wall loss caused by flow-accelerated corrosion. Pulsed eddy current inspections work through insulation, coatings, and fireproofing. Without the need for surface preparation, pulsed eddy current is a fast screening and monitoring tool that technicians can implement while the equipment is in service.

Expert NDT Services

Applied Technical Services is a leading nondestructive testing provider. Our certified NDT technicians offer their expert services to national and international clients. We serve a wide array of industries, such as:

  • Chemical
  • Construction
  • Oil and gas
  • Power generation
  • Petrochemical
  • Manufacturing
  • Nuclear
  • Renewable energy

Our experts work to optimize our clients’ productivity by minimizing unscheduled downtime and machine failure. Our corrosion inspection services give clients an accurate understanding of asset conditions. We offer quick, detailed, and accurate reporting so that clients can make prompt, informed decisions regarding their equipment. If you have any questions about testing or data, our customer service will connect you with the most relevant expert available who can help to resolve your query. If you need a FAC inspection, contact ATS today.

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