Compressible Fluid Maximum Velocity

[tabtab]

Hi Everybody,

What is the maximum permissible(allowable) velocity of compressible fluids for peroidic services such as relief valves vent stacks?

Reguards

 

[Latexman]

From a physical standpoint, it's sonic velocity. From a practical standpoint, each company is different and may have their own guidelines.

Good luck,
Latexman

 

[hacksaw]

kinda depends on the specifics of your installation.

inside the relief valve it is often sonic, while you want to avoid sonic conditions in the discharge piping

 

[tabtab]

Thanks Latexman,
Would you please inform me from some practical range?
Regaurds

 

[TD2K]

There's been lots of threads on this question, have you searched the site?

 

[Latexman]

Of the three companies that have owned the business I work for (rumors of a fourth surfaced in the business news last week!), two allowed sonic velocity at the end of the tailpipe, and one has no policy on it (at least I haven't found it yet).

Others have stated their company policies here. As TD2K suggested, use Search (between Forum and FAQs). It's pretty slick.

Good luck,
Latexman