UTT

Ultrasonic Thickness Testing

UTT is one of the more common NDT techniques due to ease-of-use. Ultrasonic thickness testing measures the wall thickness of a properly prepared sample (pipe) by touching the transducer to the surface of the pipe.

This method is very good at measuring the thickness of a single-layer sample – optimally, a clean, flat, sample at moderate temperature.

For all measurement locations, insulation needs to be removed so the transducer comes into direct contact with the bare pipe.

When determining the best method for your industry and company requirements, there are many factors that should be evaluated. Below is a high-level baseline that is a great place to start, including standard requirements and (UTT) Ultrasonic Thickness Testing’s ability to meet these requirements.

REQUIREMENT RESULT
Safety
I need daily operations to continue uninterrupted during facility inspection.

There is no risk of radiation with UTT, it is 100% safe to resume operations while testing

Meets need
Preparation
I do not have/do not want to commit resources to prepare pipes for inspection.

UTT requires removal of insulation and surface preparation at testing location, even on a slightly corroded pipe

Does not meet need
Data
I need accurate information about the state of tested pipe and indications of threat.

Measures corrosion and pipe wall thickness in moderate detail. Measurements are prone to erroneous results on pitted or freezing pipe, and require built-in assumptions.

Meets need with exception
Scope
I need all piping and vessels in my facility or designated inspection area tested.

UTT can inspect all piping – nested and suspended.
Technicians can test up to 50 locations per day with UTT.

Meets need
Timeliness
I need vulnerabilities in my system identified quickly.

UTT is able to provide real-time results for immediate further investigation where necessary

Meets need

For more information about other NDE/NDE methods for pipe inspection click a technology below:

VISUAL PULSED EDDY CURRENT CONVENTIONAL RADIOGRAPHY REAL-TIME RADIOGRAPHY RADIOMETRIC PROFILING

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