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Date: Sat, 12 Jun 1999 09:12:47 +0200
To: kurt fitch <kurtfitch@ho*.co*>, techdiver@aquanaut.com
From: Hans Petter Roverud <proverud@on*.no*>
Subject: Re: Advise on PP blending
At 11:14 PM 6/10/99 -0700, kurt fitch wrote:
>
>Can anyone offer advise on the distance the O2 bank needs to be from the 
>mixing panel? Because of my shop layout, the O2 bank as to be approx. 30ft 
>away from the panel. But GMC state that this is very dangerous because of 
>ADIABATIC COMPRESSION?
>I look forward to your replies.

The only way distance may relate to adiabatic compression is how you run
the oxygen line. The main things to avoid are quarter-turn valves and
"interesting" turns and couplings. It may TEND to be less cleanly
configured the longer the line gets since one may TEND to run the line into
a lot of nooks and crannies, as well as piecing together several lengths
and get too many couplings. Just avoid all that!
Adiabatic compression occurs when you stop a flow of gas instantly, most
easily accomplished with a quarter-turn valve. These valves are responsible
for most oxygen flashes in poorly designed systems. 

regards,

Hans  
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