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Old 11-25-2013, 12:22 PM   #1
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Boating/Silversmithing - transporting Acetylene and Gasoline

When traveling in our MH I am considering taking two flammables in our MH: acetylene for silversmithing and gasoline (in outboard and external gas can.

I have checked densities and it seems that gasoline vapors are more dense than air and acetylene vapors are less dense than air.

  • I have a couple of compartments that have removable caps on the floor and I think that it would help prevent a buildup of gasoline fumes in those compartments.
  • With acetylene being less dense than air I don't feel comfortable (after reading info from a welding company) about carrying acetylene in a closed compartment. I could install a vent in the upper part of the compartment door that may mitigate the accumulation of acetylene should the tank leak.
I could replace the acetylene torch with a propane torch or a propane/oxygen torch and I could get my propane from the tank in the MH or carry a small propane tank in the thru coach LPG storage compartment - vented to exterior thru the bottom.

Any thoughts concerning transporting these two flammables would be appreciated.


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Old 11-25-2013, 04:13 PM   #2
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Acetylene is the most dangerous gas to mess with. The tank must be stored upright and to use. If stored on its side, it must be placed upright for a minum 2 hours before use. Also, remember that if the gas does leak out, it can self ignite (explode) with a slight shock. I would not have it in a MH. I think your propane idea is a much better one. Here is a picture of a van that had a cylinder on its side. Not a pretty picture.


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Old 07-30-2014, 01:26 AM   #3
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make sure its up right and get a racing gas container its like foam inside
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Old 07-30-2014, 01:49 AM   #4
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I guess cobra hasn't transported hydrogen. Acetylene tanks are just a large generator of acetylene. If transported on there sides the chemicals inside that hold the gas in suspension will leak out into valve. If hooked up to a regulator the reg will be damaged by the chemicals inside the tank. The gas if unpressurized is as flammable as gasoline fumes, they just rise to the top. If pressurized above 15psi or so then boomage can occure. If you have a small cylinder I would haul in a vented storage bin chained upright. Your gasoline I would worry more about. Lots more BTUs per cubic foot of gas, vapor.
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