I have a keg. Gas tank?

[WristPin]

Its a full size-15.5 gallons

I may use it as an addtional gas tank.
obviously i would have to fill only the keg, and route extra hoses for the vent and return.

My idea is so that way i will have that much more gas when im out wheelin, and it will look cool.

only problem is, i dont have the equipment to weld it up, once i modify the pressure tube.

when it is full of beer, it weighs 140-170 pounds. I dont know if gas weighs more or less.

it may pose a problem however with the gas being above were it usually is, meaning the atmospheric pressure may cause unwanted leaks.

what do you think?

 

[WristPin]

i do have two kegs.
I could use both. but the other for compressed air for tires.

Now that is worth doing.

 

[Bogo]

For a street legal, no. Trail only vehicle, yes. Basically you don't want to get caught with a non legal fuel cell in an accident. A pickup bed full of loose jerry cans is cheaper in an accident. Another thing to remember is gas expands when it warms up. The keg won't have the expansion space needed. If you take a close look, all fuel tanks have a bit of an area that can't be filled up do to the geometry of the fuel inlet and the shape of the tank. That is there for expansion of the liquid fuel. Otherwise it is a good idea as kegs are sturdy.

 

[missouriman]

no way would I put 125 psi into a keg.
the thought scares the heck out of me.

 

[WarDamnEagle]

no way would I put 125 psi into a keg.
the thought scares the heck out of me.

x2. Wristpin, I wouldn't use a keg for a gas tank or an air tank. I just tried to google the pressure rating for a keg and couldn't find anything. I doubt that they are rated for more than a couple of bar (30 psig). The amount of potential energy stored in 15.5 gallons of compressed air is substantial and not to be taken lightly.

 

[WristPin]

Damn.

Because of the variety of keg or container sizes, designs, materials of construction, histories of use and abuse, states of structural fatigue, a precise maximum safe internal pressure has been difficult to determine. Also, the degree of hazard associated with a structural failure of the keg or container varies with the degree to which the liquid has already been drawn from the keg, i.e., the quantity of remaining gas volume. An internal pressure of 60 psi gauge is generally considered the maximum safe upper limit. However, when high gas pressures obtain in the keg, albeit within the safe limit of 60 psi gauge, overcarbonization of the beer may occur resulting in a change in the taste of the beer. Surges of gas pressure into the keg thus deleteriously affect the quality of the beer withdrawn from the keg.

 

[WarDamnEagle]

In the FWIW category.....gasoline has a specific gravity of 0.68 and beer has a sp. g. of 1.02 to 1.16 (water is 1.0 @ atmospheric pressure and 4 Celcius).

Therefore, gasoline would weigh about 62% of the equivalent amount of beer (0.68/1.09 = 0.624).

I do have another idea for you....why don't you rig an Engel fridge to hold a keg and keep................................beer in it!

Of course that might be the most dangerous option of all.