Is flaw detection required for the vent pipeline leading to the flare? The pipelines are quite large: Φ529*8 and Φ325*8
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Is it necessary to perform flaw detection on the vent pipelines leading to the torch? The diameters of these pipelines are Φ529*8 and Φ325*8. I think vent pipelines generally don’t have much pressure, so is flaw detection still required? If so, what is the typical proportion of pipelines that need to be inspected?
According to the specifications, it is definitely necessary; however, this step is usually omitted in practice. Steam can be injected to check for leaks!
Let’s do flaw detection instead. We’re not that big, but for flaw detection
A simple airtightness check can be carried out, but in the long run, flaw detection inspections are still necessary
Determine the flaw detection ratio according to the specified grades of SHA, SHB, SHC, and SHD!
The inspection cost for such large pipes is very high; they are mainly used at low pressures and are threaded pipes