Re: [APD] Re: empty CO2 cylinder -- tests, acid, and valves

["S. Hieber" <shieber at yahoo_com>]

There will be a small hole on the side of the regulator
which will have a small doohickey threaded into it.  The
doohickey, which might or might not look something like a
nut (as in nut and bolt)  will have a small hole in it too
but no gas will be escaping.  You will see this on the M3
regulator -- facing the knob, it's on the left side at
about the 8 o'clock position.

I think you can consider roughly 10 psi as low and 20 or
higher as relatively high. It's not written in stone;
there's no official standard.  It's like a rule of thumb.

Scott H.

--- Shireen Gonzaga <whimbrel at comcast_net> wrote:
> Robert H said:
>  > Since I started using a regulator with a fixed, low,
> working pressure
>  > I have not had any problems at all. Of course it also
> has a needle 
> valve.
>  > So whatever the reason, it works and I will not ever
> go back to using
>  > run of the mill high pressure regulators, even if just
> putting a 
> needle
>  > valve on it will solve the problem.
> 
> Robert, what are the regulator settings that define a
> high vs. low
> pressure system?
> 
> 
> Scott H said:
>  > both the cheap and the more expensive ones have
>  > an integral blow off valve in case the "low side"
> pressure
>  > gets too high.
> 
> Scott, how can I tell if my regulator has a blow off
> valve? (It's
> an M3).
> 
> 
> thanks,
> 	shireen
> 
> 
> Shireen Gonzaga
> Baltimore, MD
> 
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