Inspection of tubing involves which of the following?

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Inspecting tubing requires checking its condition, its ability to hold pressure, and its cleanliness and wear status because each aspect protects against different failure modes in service. Visual inspection looks for surface defects such as cracks, corrosion, dents, kinks, or misalignment, and checks fittings, clamps, and supports for proper installation and signs of overheating or leakage. Pressure testing verifies the tubing can withstand the service pressures without leaking or bulging; a hydrostatic or pneumatic test at the specified pressure (and duration) reveals hidden weaknesses that aren’t visible to the eye. Cleaning and wear checks ensure the interior is free of debris and corrosion products that could block flow, and that the inner diameter hasn’t eroded from rubbing or abrasion, which would reduce flow or lead to failure under pressure.

Together, these steps cover the main ways tubing can fail in operation, so performing all three types of inspection provides a complete assessment.