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BWXT $   $  
As of . Minimum 20 minute delay.

Since 2004, BWXT has successfully performed UT inspections on steam generators and preheater heat exchangers.  

This UT Inspection allows more accurate depth sizing and better flaw discrimination. With this information we are able to form a history of each tube inspected and anticipate the life expectancy of the tube and monitor discontinuity growth rates such as pitting, fretting and corrosion wall loss.

This information also allows system engineers to foresee aggressive pitting, fretting at support structures and corrosion detection at an earlier stage.

It is also used to characterize Eddy Current Inspection findings and concur thru-wall percentages as the codes allow.

Ultrasonic probes are driven into individual heat exchanger tubes at predetermined locations by an external motor control and rotated 360 degrees to capture 100 percent tube wall conditions. All operations are carried out remotely by Acquisition operators. The data is then transferred to Analysis Technicians where the final results are analyzed, tabulated and forwarded to the responsible system engineers for final disposition.

This Ultrasonic Tube Inspection has proven inspection capabilities to find minute indications that cannot be detected by other inspection techniques. With these capabilities we are able to prevent release of contaminants and radioactivity into the environment and help ensure the operating cycle of the component is maintained.