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Drew

I wrote:

> 80 Cu Ft Cylinder is the volume of gas contained within the cylinder
> measured at 1 bar.

Drew wrote:

>..., this statement is incorrect. An
>'80' actually holds slightly less than 80 cu ft of air at it's rated
>pressure (207 bar / 3000psi) Thus 80 cu ft / 207 bar = @ 0.38 cu ft. at
>1 bar.

I guess there were two interpretations to what I wrote.  An 80 when   
emptied of gas would read 0 bar gauge pressure whereas in fact there   
would be 1 bar (ambient) absolute pressure.  The volume of gas would then   
be the same as the water capacity i.e. 0.38 Cu Ft.

What I was indicating was that a full cylinder 80 Cu Ft at 207 bar / 3000   
PSI when emptied would discharge into the atmosphere (i.e. 1 bar) a total   
of 80 Cu Ft of gas.

Dave
shimell@se*.co*
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