Gas Pipe Sizing
Gas Pipe Sizing
(OP)
Good Morning,
Could anyone help me to find the formula to design the pipe diameter and thickness if I know the pressure, temperature, CFM, type of gas and length of pipe?
Could anyone help me to find the formula to design the pipe diameter and thickness if I know the pressure, temperature, CFM, type of gas and length of pipe?





RE: Gas Pipe Sizing
Are you moving the fluid a long distance (and worried about pressure drop)? Otherwise velocity and CFM will drive line size.
RE: Gas Pipe Sizing
Note that many online calculators etc are only valid for low pressure systems where Pin and P out only change by 10% or less
Thickness is from the relevant design code or material spec.
High pressure, long pipelines, large differences in Pin to P out are more complex, but often a rough approximation can be made or you divide your pipe into segments and iterate between them.
see https://www.lmnoeng.com/Flow/weymouth.php for a bit of an explanation
Did you do any research into this?
Remember - More details = better answers
Also: If you get a response it's polite to respond to it.
RE: Gas Pipe Sizing
Start there.
RE: Gas Pipe Sizing
I don't have the velocity. Following are rest of my parameters:
Pressure = 450 PSI
Pipe Capacity = 100 CFM
Pipe Length = 300 ft
Gas = Nitrogen
Yes, I did some research, but couldn't find out an appropriate answer.
RE: Gas Pipe Sizing
That is the best bet.
RE: Gas Pipe Sizing
RE: Gas Pipe Sizing
RE: Gas Pipe Sizing
RE: Gas Pipe Sizing
Remember - More details = better answers
Also: If you get a response it's polite to respond to it.