Paul,
A similar question arose possibly 8-10 months or so ago where a member was going to carry out pneumatic testing of a pipe line which may have been for water only. I seem to remember that as it was for water that the integrity test was at a greatly reduced pressure due to the viscosity of air vs. water. I have had a look in some of my saved mail and I don't seem to be able to find it. I may be off on a wombat track but I do seem to remember something about this.
Cheers,
Robin
>
> RICK wrote:
>
> > Tha standard of pnuematic test pressure is 110% of the maximum design
pressure of the system in question and testing in excess of that pressure
would be hazardous considering the compressibility of the test media. In
practice pneumatic testing is minimized.
>
> 110% is typical for pneumatic testing as far as I know. Pneumatic
> pressure testing is much more dangerous than hydro (think violent bursts
> instead of gradual leaks) and is used for lines/systems that have to be
> free of liquid.
>
> Paul
>
>
>
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Received on Fri Dec 03 19:59:00 2004
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