because of the low intermediate pressure of about 120 to 145 psi going to
the second stage there is nothing you have to do special to the second
stage.Only the first stage, the valve, and the tank has to be o2 cleaned
i hope this helps.


                                                                  Larry

-----Original Message-----
From: marty hopkins <hopkins@ca*.co*>
To: Techdiver Post <techdiver@aquanaut.com>
Date: Saturday, October 16, 1999 12:19 AM
Subject: Need advice on G250 and 100% Oxygen


>I was recently told that the G250 poppet seat is Neoprene ...
>Is there anything I should do
>or need to know about this before using this reg for 100% oxygen
>other than cleaning in general for oxygen
>
>I've got mostly new Mk20's & G250's and would like to just keep one set of
>parts etc.
>
>Thanks in advance
>
>Marty H    Canada
>

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