Issues related to pipeline inspection grades in the pipeline characteristic table
Thread Content
The inspection grades for pressure pipelines according to GB/T20801 are divided into 5 levels, while the inspection grades for pipeline welds according to GB50184 are also divided into 5 levels. Question: 1. Are the two pipeline inspection grades equivalent? 2. The pipeline characteristic table only specifies the inspection level for the pipeline; is it necessary to indicate whether magnetic particle testing, penetrant testing, radiography, or ultrasonic testing should be used? 3. The pipeline characteristic table only specifies the inspection level for the pipeline; it does not indicate whether to inspect the longitudinal seams or the fillet welds, nor does it specify what exactly needs to be inspected – all of this requires detailed design
The inspection grades for pressure pipelines according to GB/T20801 are divided into 5 levels, while the inspection grades for pipeline welds according to GB50184 are also divided into 5 levels. Question: 1. Are the two pipeline inspection grades equivalent? Answer: It varies. 2. The pipeline characteristic table only specifies the inspection level for the pipeline; is it necessary to indicate whether magnetic particle testing, penetrant testing, radiography, or ultrasonic testing should be used? It should be noted that 3. The pipeline characteristic table only specifies the inspection level for the pipelines; as for whether to inspect the longitudinal seams or the fillet welds, and what exactly needs to be inspected, these details require a thorough design No need
If the inspection levels of the two specifications are different, what is the difference? Which inspection level is used as the basis for the pipeline characteristic table?
Very professional. Recently, our project has only reviewed the pipe pressure class and flange class.