pipe size
pipe size
(OP)
When do change from I.D. to O.D. in sizing pipe?
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RE: pipe size
Sorry but your question is un-clear. If you are asking about sizing pipes for flow of fluids then the ID is always used. If you are asking about actual pipe sizes then these are based on the Nominal Size (e.g. 2",3",4",6",8" etc). The actual ID of a pipe is dependant upon the pipe schedule. The OD of an actual pipe is dependant on the pipe size. For example we have:-
Nom Pipe Size Pipe O.D. Pipe I.D.
3" 3.5" Depends on Schedule
4" 4.5" Depends on Schedule
6" 6.625" Depends on Schedule
8" 8.625" Depends on Schedule
10" 10.75" Depends on Schedule
12" 12.75" Depends on Schedule
14" and Above - the Pipe OD is the nominal size of the pipe and the ID depends on the pipe schedule.
RE: pipe size
RE: pipe size
Large-diameter steel pipe can be custom made in varying OD's as well.
RE: pipe size
When you measure the flow quantity or volume of the liquid inside, then ID should be used. When you measure just the pipe size, nominal size or OD should be used.
Thanks,
Aravind Sujay
RE: pipe size
RE: pipe size
Is it really that easy? I don't see it. Consider using ASME B36.10 for steel and B36.19 for stainless. That's what I do and it usually works for me.
RE: pipe size
http://virtualpipeline.spaces.msn.com