Chris,

See http://www.lpgas.com/what.htm.  They say that depending on air temp,
the pressure in the tank is 15-230PSIG. Actually, at -44 degrees, the
pressure would be zero, but that would be unpleasant to achieve (BTDT :-)

Becasue tanks need to be certified, having a custom tank deigned would be
horribly expensive.  You are probably better off finding a stock tank that
will fit the frame of the bus.

                           Steve Dolan

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On Sat, 25 May 2002, 80 Westy Pokey wrote:

> I am toying with the idea of a dual fuel setup (there is a
> guy in the UK that has kits for air cooled vans). But to
> make this worthwhile at all I need more propane capacity,
> well beyond just adding a second standard sized westy tank
> under the sliding door (No I dont want to put the tank
> inside the van, nor do I want a larger or second gas tank).
>
> Must a propane tank be cylindrical to hold the gas safely?
> What kind of PSI do they hold? My scuba tanks are rated for
> 3000 PSI and I assume they too are cylindrical for
> engineering reasons.
>
> In an ideal world, laws of physics aside (OK maybe the sides
> could be rounded), I would love to get a tank that was only
> about 4 to 6" tall x 12" wide x 36" long. This would fit
> neatly under each sliding door.
>
> What about the possibility of putting two 6" tanks side by
> side between the fame rails for a total of 4 tanks? How
> would you link them all together? How would you do a fill?
>
> Just dreaming...
> Chris
>
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