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The process side of the exchanger shows all areas including the baffle
with excessive material loss.

A ruptured exchanger tube was discovered after a hydro test.
It appears the tube failed due to thinning of the tube wall.

Shell-side inspections with remote video tools such as videoscopes are used to verify the
condition of the tubes and shell and the extent of shell-side fouling in an exchanger.

Shell-side corrosion and fouling can be identified and evaluated using remote video camera
systems such as small-diameter, articulating videoscopes.

Exchanger Tube Bacterial Corrosion

This bacterial corrosion was caused by an ineffective cooling water treatment program.A
videoscope was used to determine the extent of the corrosion throughout the facility.
Non-contact measurement software was used to quantify the pitting.

Exchanger Tube Pitting

Video scopes are excellent tools for determining the internal conditions of exchanger tubes.
Techniques such as eddy current only supply numbers for supposed wall loss. Remote video
can differentiate conditions such as fouling, scale, corrosion, and pitting before using
software to accurately measure features.

Tube Walls Thinned and Blown Out

Vibration may have been associated with the tube failure
where the tube has completely broken off.

Exchanger Tube Broke off at Baffle

Many of our clients have used videoscopes to locate and determine the cause of
failures in tubes.

Tube Walls Thinned and Failed

A hole is clearly visible and with ID pitting indications as well.

Tube Walls Thinned and Pitted

Aluminum had deposited and built up in this tube over time. The presence and thickness of
this build-up was verified using a remote camera system and non-contact measurement
software.

Hydrotest – Tube Cracked and Torn

Aluminum Build-up in Exchanger Tube

Cooling Water Side Conditions

Conditions: Tube OD / Exchanger Shell Side

This video shows corrosion at the start of a tube near the tube sheet.

Tube End-region Corrosion

This video shows corrosion at the rolled area of the tube.

Corrosion at Rolled Area of Tube

This video shows tube corrosion and wall loss.

Corrosion and Wall Loss

A videoscope was used to inspect this tube for fouling. Debris was also noted in this tube.

Condenser Tube Fouled & Foreign Object

This foreign object was noted during a tube side inspection of an exchanger

Fin Fan Tube Scale & Foreign Object

This video shows heavy scale/fouling on the ID of an exchanger tube.

Exchanger Tube Scale Fouling

Pitting corrosion is clearly visible in this video of the inside diameter of a heat exchanger
tube.

Internal Pitting Corrosion of Heat Exchanger Tube

This video shows cluster pitting on the inside diameter of tubes in a heat exchanger.
Non-contact measurement software is able to provide size measurements of features such as
pitting.

Cluster Pitting Due to Sour Glycol
in Heat Exchanger

Initial Pre-Cleaning Inspection of Exchanger Tube Bundle for Preparation Prior to Chemical
Cleaning. This video shows random tubes of the Exchanger with excessive scale fouling.

Pre-Cleaning Inspection of Exchanger Tube