Functionally
if you are the "Piping Material Engineer (PME) developing the Piping Line Class
Specifications than you would need to consider all of the following and more:
·
The
commodity (water, steam, oil, sulfuric acid, etc)
·
The
fluid state (gas, liquid, slurry)
·
The
pressure (Design & Operating)
·
The
temperature (Design & Operating)
·
Corrosion
allowance
·
The
expected design life of the plant
·
The
material (aluminum, carbon steel, stainless steel, 9 chrome, etc.)
·
The
applicable Code
Please
note, the flange rating (Class 300) has nothing to do with the required
pipe-wall thickness.
basically if we want to give an example refers to std reference about the wall thk, say...150# spec, service is fluid, material is CS...what is the wall thk refers to?
STD WT/ sch.40 or we can say sch.80 or higher...just for quick reference to someone from IE or CS asking for the pipe WT.
Wall Thickness for 8"-300# Rating
Re: wall thk determination
