I'm not one of the rocket scientists, why do you say it will heat
excessivly? It seems as if the helium would carry the heat out of the system
better.

At 07:29 PM 11/19/97 -0700, Harold Gartner wrote:
>>Why do you need the expensive Haskel. Why can't you cascade your O2 then=
 top
>>the rest off with heliair out of your compressor (setup a flowmeter at the
>>compressor intake then analyze output & adjust flow of helium until you=
 get
>>desired mix, send it to the tanks to get final mix) you should be able to
>>use every bit of the helium without needing a haskel and its simple.=
 Besides
>>you need the compressor anyway so why buy two expensive items that basicly
>>do the same thing. We take delivery of our Rix soon and that is what we=
 plan
>>to start working with right away unless somebody comes up with a real=
 danger
>>to doing this - if nobody else has tried this then I guess we will be the
>>test dummys :-)
>>
>>Fill whips, Rix SA3, haskel & lots of fittings - $8000 +/- vs. Fill whips=
 &
>>Rix SA3 & a few fittings - $2500 +/-
>>The decision was easy. (We can get several more Rix units with this kind=
 of
>>pricing if anybody is interested)
>
>I own a RIX SA6 and a Haskel pump. Don=B9t try to use the compressor for=
 this
>purpose. First, it will heat up more than desired and burn up the rings=
 much
>faster. Those things are bitchy enough to rebuild and you don=B9t want to=
 do it
>more than you need to.
>
>I use the Haskel for O2 only and it=B9s O2 clean. As I=B9m using a=
 rebreather I
want
>full O2 fills (3000-3300 psi) and I cascade my He from 4 storage tanks. I
seldom
>lose any significant amount of He - even when I was doing open circuit=
 trimix -
>this way. If I do get down to the last few hundred psi of the He I can=
 transfer
>using the Haskell.
>
>Hal
>
>Harold H. Gartner III
>hgartner@ra*.or*
>
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