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Re: CO2 induced corrosion



> 
> From: Stephen.Pushak at saudan_HAC.COM
> Date: Mon, 15 Jan 96 10:17:52 PST
> Subject: Oxygen/CO2 regulators corrode?
> 
> Jay Bickford wrote:
> > >> Most
> > >> regulators with gauges are designed for compressed oxygen
> > >> and the welding supply guy told me that the acidic CO2 gas
> > >> will corrode them. 
> > >
> > I converted an old oxygen regulator to use as a CO2 regulator.
> [snip]
> > I suppose there could be some internal difference in the 
> > regulator that I'm not aware of, but all of the welding
> > regulators I've ever seen have been made of brass, whether 
> > they were set up for acetylene, oxygen, or CO2. 
> 
> Sorry for the confusion; I read my post later and realized it
> was misleading. Regulators are made of brass; the bourdon tube
> inside the gauge is steel and that's what the guy in the shop
> was referring to (I think). Wouldn't pure O2 also be just as 
> corrosive?
> 
>
	Neither CO2 or oxygen will be corrosive if dry, as they
certainly should be in a tank.


Paul Sears       Ottawa, Canada