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Mailing List: techdiver

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In your message dated Wednesday 8, November 1995 you wrote :
> > I am so fed up with the problems of getting a mix fill round here (NW 
England) 
> > that I'm going to have to do it myself. Helium cylinders here (from British 
> > Oxygen anyway) only have a 137 bar (2000 psi) fill pressure, so even 
cascaded, 
> > you're going to loose a lot. My question is this:
> 
> When I use a 3-cylinder cascade system, my first cylinder is about 
> 200-300psi by the time my third cylinder is down to fill pressure.  
> Hence, I don't waste too much, even without a booster pump.
> 
> Aloha,
> Rich

Try using Linde Gas or Air Products for gas. Their helium comes in 50 litre 
water capacity cylinders charged to 250 bar :-)
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Chris Hellas

EMail:-   chris@de*.de*.co*.uk*,    100422,2334@co*.co*              
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