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PHOTO #4 Removed tube sample
NOTE: Failure in tube
PHOTO #4
Bottom Half - Note Minimal Corrosion
Liquid
PHOTO #5 Severe groove depth adjacent
to edge of support
PHOTO #6
PHOTO #7
PHOTO #8
PHOTO #5
Top Half - Note Corrosion
PHOTO #6
Bottom Half - Note Minimal Corrosion
PHOTO #7 Cross Section
Tube split to show top & bottom
-
Left & right sides show minimal corrosion. Liquid covered.
-
Inner left & right (top circumference of tube) show heavy corrosion. Liquid/Vapor.
PHOTO #8
Top Half - Note Corrosion
Unexpected Tube Failure in
HDS Stripper OVHD Air Cooler
chronicle companion images
PHOTO #2
NOTE: Close up of Failure
PHOTO #1
Top half of tube looking at failure
PHOTO #3
Top Half of Tubing - Note Corrosion
Liquid/Vapor
Acid Attack/Corrosion in Sulfuric Alky Unit
chronicle companion images
Active
Failure
PHOTO #2
Previous Failures (44)
PHOTO #3
Closer Look
Failures
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PHOTO #1
Active Failure Noted During Inspection Process
PHOTO #4
NOTE: Light Attack to Tubing
Light
Attack
PHOTO #5 Acid Type Corrosion
NOTE: Deposit Related Corrosion Line
Corrosion
Line
PHOTO #6
Corrosion Cell at Backface of Tubesheet
Corrosion
at Cell
PHOTO #7
Severe O.D. Pitting of 75%+ Depth. Random Locations
75%+
Depth
PHOTO #8Severe Attack Wastage
NOTE: Almost no Attack to Carbon Steel Components
Example
PHOTO #9
Closer Look
INSPECTION PHOTOS
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