important as today's Mission Critical Piping Systems are, the current methods of
inspecting those systems are rather antiquated and grossly under perform. Often times, Facility
Managers or Property Owners only get partial information, forcing them
to make undereducated decisions and consequently making unnecessary
repairs; or more importantly, relying on substandard pipe to protect
their property, equipment, products, and staff.
SoniTech NDT has taken a huge leap
forward with this issue, by offering a technology that provides a very
high level of detail in a cost effective manner, unattainable by any
other means available today; all while working behind the scenes without interruption of your daily operations.
SoniTech's Predictive Maintenance Program incorporates
both traditional UT ultrasonic "time of flight" thickness testing along
with its proprietary patented Ultrasonic Localized Guided Wrap Wave (ULGW) scanning system
to quickly, simply, and
accurately detect and monitor anomalies within a piping system.
This unique patented ULGW inspection system identifies areas of pipe that show
internal corrosion or other issues. The scanning head is placed on the
of the pipe, which excites guided ultrasonic wrap waves into the pipe and then receives the resulting sound wave information. To assess the data, SoniTech
compares the measured waveforms against a database of ultrasonic
signatures for pristine pipe of equal diameter, schedule, and alloy. The
difference between the two wave forms will reveal the internal
condition of the pipe.
The signal on the left shows a good pipe and the signal on the right is bad.
the left, you can easily see the measured signal on bottom closely
matches that of the baseline on top, whereas on the right, there is clear signal degradation between the baseline and measured signals.
areas of concern are then further
inspected with the ultrasonic thickness gauge to generate a second set
of data, providing additional insight as to the conditions detected
inside the pipe. Ultrasonic thickness testing is a highly accurate and
proven resource, but it alone cannot detect corrosion build up, trapped air or water, ice, or
other than wall thinning.
The combination of SoniTech's patented Ultrasonic Localized Guided Wrap Wave (ULGW) technology and traditional
ultrasonic UT thickness measurements has
proven highly successful in finding corrosion nodules and wall thinning
both wet and dry systems, air pockets trapped in wet systems, water
pockets left in dry systems, and ice plugs in sub freezing environments.
While scanning, SoniTech technicians mark
the exact area of pipe where readings are taken, making it quick and
easy to reference those areas in the future. All data collected is then
compiled into detailed reports and referenced to the markings on the