Sunday, January 24, 2021

[MW:31955] Tolerance for straightness of the pipeline

Dear Experts,

I want to approve an FQP for Pipe erection, and in that FQP I want to mention the tolerance limit for the straightness of the pipeline.

I had also referred to relevant specifications and different codes including ASME B31.3 process piping but acceptance criteria is not mentioned anywhere.

Pipe line belongs to Ash slurry, HFO/LDO, and service water pipe used in power plants and the material is IS 2062.
Here I would like to clear that query raised to know the acceptance tolerance as per code in straightness of pipe line at final inspection.

Please suggest on which basis I can mention the tolerance limit for straightness of the pipeline in FQP.

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