Using a propane tank for air... questions
#1
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Using a propane tank for air... questions
I've got a few extra propane tanks. The kind used in small bbq grills. Anyway, I've already emptied, cleaned, and welded on brackets to mount it, but I'd like to know how much pressure is ok? I was going to use it as an air tank in my truck's toolbox for my train horn and maybe for inflating tires. Already have the compressor. My guess is it's about 5 gals. Is 120psi too much?
#3
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Im not sure I would want to add compressed air in a propane rich environment
Too many safer methods of air tanks (like some schedule 40 A53 pipe and pipe caps)
I know free is hard to beat, but so is blowing a 5 gallon tank of compressed air.
Too many safer methods of air tanks (like some schedule 40 A53 pipe and pipe caps)
I know free is hard to beat, but so is blowing a 5 gallon tank of compressed air.
#4
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If I'm not mistaken propane tanks are rated well over 120 psi.
Consider a full tank sitting in the sun, I'm sure the pressure goes sky high.
I wouldn't have any problem at all using them, the smell might take a long time to come out but the gas will be long gone.
Consider a full tank sitting in the sun, I'm sure the pressure goes sky high.
I wouldn't have any problem at all using them, the smell might take a long time to come out but the gas will be long gone.
#5
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the new tanks have pressure relief valves buit in (hence the reason you only get one good bbq out of a tank)
EDIT:
http://wolfstone.halloweenhost.com/H...neAirTank.html
Admins feel free to delete if the content is questionable, I quite honestly didn't look..
EDIT:
http://wolfstone.halloweenhost.com/H...neAirTank.html
Admins feel free to delete if the content is questionable, I quite honestly didn't look..
#6
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I'd pressureize it several times and then turn it upside down to vent it. Propane is heavier than air so this should get it out of the tank. The mercaptins will haunt you for quite some time however. You might try flushing it out with some light oil or diesel.
As long as you get all of the gas and fumes out of it it shouldn't be a problem. People have been using freon tanks for a long time and I'm sure propane tanks are built to higher standards.
Edwin
As long as you get all of the gas and fumes out of it it shouldn't be a problem. People have been using freon tanks for a long time and I'm sure propane tanks are built to higher standards.
Edwin
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My dad has had a few of those around for years, they work great for that purpose. Make sure you put a shut off valve on top, they always seem to leak down after a while. 120 is about the most I've put in one, might just be the most the compressor can put out.
#9
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Propane has a vapor pressure of 172 psi at 100*F. I believe the tanks are rated to 250 psi. If the tank has an opd valve, it is restricted as to the amount of gas volume it will pass. Older non opd tanks work better for air.
#13
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Propane that is in a regular 5 gallon BBQ bottle is stored at around 200- 250 PSI at ambient temperature and they hydro test them around 2 times the service pressure if I remember correctly since the wall thickness is so thin. You should have no safety problems using air.
However allot of people do use old empty R-22 bottles for air tanks and there is no problems but I believe the traces of the R-22 react with the oxygen and are corrosive and weaken the tank lining.
But that is just what I have been told.
And I have used them for years with NO problems.
Jim
However allot of people do use old empty R-22 bottles for air tanks and there is no problems but I believe the traces of the R-22 react with the oxygen and are corrosive and weaken the tank lining.
But that is just what I have been told.
And I have used them for years with NO problems.
Jim
#14
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Originally Posted by Jim Lane
Propane that is in a regular 5 gallon BBQ bottle is stored at around 200- 250 PSI at ambient temperature and they hydro test them around 2 times the service pressure if I remember correctly since the wall thickness is so thin. You should have no safety problems using air.
However allot of people do use old empty R-22 bottles for air tanks and there is no problems but I believe the traces of the R-22 react with the oxygen and are corrosive and weaken the tank lining.
But that is just what I have been told.
And I have used them for years with NO problems.
Jim
However allot of people do use old empty R-22 bottles for air tanks and there is no problems but I believe the traces of the R-22 react with the oxygen and are corrosive and weaken the tank lining.
But that is just what I have been told.
And I have used them for years with NO problems.
Jim