SPECIALIZED services

Remote Access Video Inspections (RAVI) is a safe and popular method of investigating areas and locations that are not accessible by conventional means. RAVI can be employed in situations that pose a potential hazard to workers trying to investigate a situation with conventional techniques.

The use of a small, waterproof and extendable camera means that tight locations can be access for inspection and the results are able to be digitally recorded in either video or still picture format that endure as proof of the inspection findings. This form of inspection has a wide variety of applications and can be used in almost any industry.

One situation where RAVI was employed to great satisfaction of our clients was the investigation of pump & motor installations during the commissioning phase of a chemical plant start-up. RAVI was employed to avoid the otherwise expensive and potentially dangerous situation of accessing the motor & pump entryway to ensure no construction debris remained that could potentially damage or destroy new and expensive pumping systems. Instead of employing a team Piping and Rigging workers to remove large bore pipes to gain access to the tight locations, RAVI was safely employed to investigate and record the results. Because the results were documented in digital format, our client was then able to provide proof to the owners that all passageways were clear and that due diligence had been exercised to ensure damage was avoided to the new machinery.

Typical RAVI applications are:

• Internal Sections of Crane Booms
• Gear Housings
• Normal construction steel with Austenitic chrome alloy steel welded cladding (Ex. Boilers, vessels, etc.)
• Welds, Castings, Forgings, Weld Overlays, Wrought materials
• Weld materials
• Piping Applications
• Insulation Deficiencies
• Cylinder Inspections
• Drains, Traps
• Pumps & Motors
• Automotive Applications

Holiday Coating testing detects pinholes and flaws in a protective coating that have been applied to conductive materials to protect against corrosion. It is important that flaws are detected early, preferably immediately after the coating is applied. The Holiday Coating test is suitable for most coatings including bonded epoxy, coal tar epoxy, paints, polyester, polyurethane, pipeline tapes, heat shrinks and asphalt. Low voltage tests are conducted on thin coating films. Coatings over .05 mm generally require use of the Higher Voltage Spark Tests. The coatings test is performed by moving a probe across the coated surface until flaws or pin holes are located by voltage “sparks” escaping through the coating and registering on the Holiday Coating testing devise. Discontinuities are marked by Vingrity NDT technicians for repair.

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