quick question about tank size........

turbo matt · Post by **turbo matt** » Mon Feb 27, 2006 11:49 pm

what is the formula for figuring out the volume of a tank? lpg that is. gallons too.

i dream of a tank that is 24" around and 30" long. single tank for my baja truck. way too expensive to have made so i am going to fork lift tanks.

franz · Post by **franz** » Tue Feb 28, 2006 8:51 am

I come up with about 55 usable gallons. It is next to impossible to have a LPG tank made, there are strict ASME code requirements as to wall thickness, radius of ends, welding standards, and so on. You may be able to scour some salvage yards and fine one like that. I have seen some on bobtail (propane delivery) trucks that come close to your size.
As for using Forklift cylinders, they are not approved for over the road use in the US (DOT, NFPA, Fire Department) since they do not have restraining capabilities.
A forklift is not considered over the road.
By the way, these only hold an average of 7 3/4 gallons for a 33 lb cylinder.
Franz

turbo matt · Post by **turbo matt** » Tue Feb 28, 2006 10:31 am

my truck is strickly off-road. more of a toy than truck.
what is the math to figure out the volume of a tank?

cow_rancher · Post by **cow_rancher** » Tue Feb 28, 2006 11:28 am

pi X radius squared X lenght = volume in whatever you used for measurement, i.e inches.

When you say 24 inches around, do you mean diameter, or circumference?

So... if you ment diameter

3.14 X 144 (12" x 12") X 30 = 13565 cubic inches

1728 cubic inches/foot

13565/1728 =7.85 square feet

7.48 gal / square foot water

58.7 gallons... figure 80% full

About 47 gallons total.

If you ment circumference

24 X 30 = 720 / 1728 = .41 X 7.48 = 3 gallons, so you probably ment Diameter.

Post by **Frank** » Tue Feb 28, 2006 2:29 pm

A 24" diameter for a 30" long tank is a bit unusual. If you any intention of driving your truck on the road, Sleegers has a 14" diameter tank (propane capacity of 52.6 litres or 13.9 US gallons) that may suit your needs:

Alternatively, a trunk-mount tank may work for you as well. Here's a tank used in Ford Crown Victorias with a propane capacity of 94 litres (24.8 US gallons):