No. Ultrasonic testing requires direct contact with the pipe requiring excavation.  While alternatives exist in the form of ultrasonic “pigs” that travel inside the pipe, many issues exist including a high cost.  Additionally, guided wave can be used to inspect underground pipe, however the length of scanning ability can be greatly reduced by pipe and ground conditions.

There is an alternative called “pigging,” which sends a large device through the pipe itself and is the only option for riser piping behind walls or underground pipe.  Limitation exists relative to pipe size, and substantial preparations are required, including the temporary removal of the piping system from service.  Clean pipe benefits its accuracy, and for that reason a high pressure cleaning prior to testing is often advised – itself a time consuming process.  We can provide further information on pigging and guided wave upon request.

CorrView International, LLC
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