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To: Frank
To: Deutschmann <fhd@in*.ne*>
Subject: Re: O2 fills
From: Richard Pyle <deepreef@bi*.bi*.Ha*.Or*>
Cc: techdiver@opal.com
Date: Thu, 13 Apr 1995 12:27:51 +22305714 (HST)

On Thu, 13 Apr 1995, Frank Deutschmann wrote:

> Richard Pyle sez:
> > However, some friends
> > of mine who used to use scuba or oxygen cylinder valve to regulate the
> > fill rate found that in a short time the teflon valve seats were burned
away.
> 
> Realize that you will ultimately end up breathing the by-products of this
> combustion, particularly carbon monoxide.  (Teflon combustion in O2-rich
> atmospheres is rapid and incomplete.)

Which is one of the two reasons why we incorporated a SS needle valve to
regulate the flow instead of either of the cylinder valves. The other
reason was concern for an oxygen fire ignited at these sites.

Aloha,
Rich

deepreef@bi*.bi*.ha*.or*

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