Re: [APD] Inverting CO2 tank

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

Running an outlet tube up past the tank and putting the
regulator on the end of that is one way to keep the
regulator up above the tank.

But hey, have you guys laid a tank down to see if what you
are saying is true? That the regulator freezes and and the
CO2 doesn't flow right, etc.?

Try a little empircism; you might be surprised.

sh
--- Dennis Dietz <ddeitz4843 at charter_net> wrote:

> > S. Hieber wrote:
> >
> > >The frosting is from the rapid escape of the
> presurised
> > >contents and doesn't really have much to do with the
> tank's
> > >orientation.
> > >
> > >sh
> > >
> > >>I had around 300lbs left in my tank, so I took of the
> > >>regulator and let
> > >>'er rip. The bottom half of the tank frosted. From a
> dead
> > >>sleep my two
> > >>cats ran out of the house like bats outta hell from
> the
> > >>noise.
> > >>
> > >>Whee waaah.
> > >>
> > >>Chris.
> > >>
> > Well, actually I believe it would. The frost line yes,
> is a direct
> > result of the depressurization. The tank was left in
> the standing
> > position and depressurized. The frost line appered from
> the liquid line
> > and crept downward with it until the tank was empty,
> which makes sense.
> > If the tank was upside down and the valve opened, the
> same would happen,
> > but the frost line would move outward, towards the
> empty side of the
> > container as the gas escapes. I do believe that liquid
> C02 might jet out
> > of the valve however.
> >
> > So the effect is the same, there's just this notion of
> "right side up"
> > that we have to contend with and is giving us all this
> trouble. If the
> > tank were on it's 'side', valve 'upward' and pressure
> released, the
> > frost line would appear horizontally across the tank
> and move 'down'
> > until empty.
> >
> > So what kind of valve is used in space? The tank
> contents (if liquid)
> > wouldn't conform to one side of the tank opposite the
> valve.
> >
> > - Chris.
> >
>   All this is true but the real question is: Can the CO2
> tank be layed down
> and still work.   No.  If the tank is inverted to the
> point where the liquid
> CO2 is in able to escape through the valve, then it will
> escape, either all
> over you or into you regulator.  Either way, you and your
> regulator will be
> ruined because at 800+ psi and freezing temps.  A tank
> could be tipped
> slightly but its hard to see how much CO2 is in a solid
> steel/aluminum tank.
> Paint baller use them inverted all the time, haveing
> larger 5-10 lbs
> cylinders with just a braided pressure line and the
> corret fitting to attach
> to the small cylinders on the markers(guns) .  Turn tank
> so valve is at
> bottom, attach to the cylinder and open valve.  Liquid
> CO2 will go fromthe
> big tank to the small one.  They use little pocket scales
> to judge when the
> small one is full.  HTH:)
> 

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