Pipeline span issue
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Why doesn’t the pipe span table in the manual specify the span with what amount of corrosion allowance? Different corrosion allowances also have an impact on the span of the pipes
The pipe span tables in the manual usually provide recommended spans under standard conditions; the reason no allowance for corrosion is taken into account is that the degree of corrosion varies depending on factors such as region, environment, and material, and it is difficult to predict. In practical applications, the span should be adjusted appropriately based on specific conditions and the corrosion resistance of the materials, taking engineering experience into account. .
The pipe spans specified in standards and manuals refer to those for standard wall thicknesses, such as Sch40, Sch80, etc., while the corrosion allowance is already taken into account when calculating the appropriate pipe wall thickness