LPG Liquid Line Sizing

[npf]

All:

I am currently working on LPG terminal project. For LPG line sizing, what pressure drop and velocity guidelines should be considered? LPG operating temperature is about-40F

Also I am trying to find out the isolation philosophy to be used for isolating piping and equipments and where an ESDV should be used as oppossed to manual or an automatic XV valve for my P&ID development.

Does API or NFPA address these issues?

Any help or comments would be appreciated.

Regards,
npf

 

[BigInch]

Can you be more specific about exactly what type of LPG facility you're designing?

While you're thinking about that, check these,

http://www.access.gpo.gov/nara/cfr/waisidx_07/49cfrv2_07.html

http://www.access.gpo.gov/nara/cfr/waisidx_07/49cfrv3_07.html

go here and search "LPG"

http://www.access.gpo.gov/cgi-bin/cfrassemble.cgi?title=200749

CFRs for NGL facilities might help.

http://www.access.gpo.gov/nara/cfr/waisidx_07/49cfr193_07.html

"I'm all in favor of keeping dangerous weapons out of the hands of fools. Let's start with typewriters."
- Frank Lloyd Wright (1868-1959)

 

[dcasto]

nfp58. Without knowing the whole system, there is no way to tell what you need. Typically an ESD at the bountries would be called for.

 

[BigInch]

At the very least.

"I'm all in favor of keeping dangerous weapons out of the hands of fools. Let's start with typewriters."
- Frank Lloyd Wright (1868-1959)

 

[npf]

All:

Thanks for the information. Right now we are working on LPG terminal project.I will try to look onto NFPA58 for more information.

Regards,
npf

 

[BigInch]

Road tanker terminal, rail tanker, pipeline terminal, barge terminal... all of the above?

"I think it would be a good idea."
- Mahatma Gandhi (1869-1948),
when asked about Western civilization