Nitrogen or CO2
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New User
Joined: Jun 2004
Posts: 7
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From: Alberta, Canada
Nitrogen or CO2
Quick question. I have a Nitrogen tank that was used for pressureing up microwave cables. I realize I will need a high flow valve to make it useful, but what I need to know, is what is safer/ better to have CO2 or Nitrogen, what kind of transport problems will I have (dangerous goods stickers for Nitrogen?), and can I re-fill a Nitrogen tank with CO2? Thanks.
More Turbo
Joined: May 2004
Posts: 545
Likes: 8
From: BC, Canada
What you are using the gas for? I think they are both are inert gases. C02 is usefull for wirefeed welders (not for thin stock though). It's a lot cheaper than mig gas mix. Yes, a 2 stage regulator will be right. ...Terry
Posting Legend
Joined: Sep 2001
Posts: 30,255
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The Nitrogen bottles I have seen sitting beside the road are rather large, 5' tall and 2' in diameter.
I have an old CO2 fire extinguisher tank that I have thought about converting to a portable compressed "air" source and filling it with liquid CO2.
Liquid Nitrogen and dry ice were always fun to play with in the labs. You have to be careful with them just like any other dangerous material.
I have an old CO2 fire extinguisher tank that I have thought about converting to a portable compressed "air" source and filling it with liquid CO2.
Liquid Nitrogen and dry ice were always fun to play with in the labs. You have to be careful with them just like any other dangerous material.
Hotshot
Joined: Feb 2004
Posts: 11,697
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From: Marengo, Iowa
For $30 go to Wally world and get their portable tank, strip it of the gear if you wish, and mount it. Lighter, tested, and you can always set it up to be removeable.
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New User
Joined: Jun 2004
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From: Alberta, Canada
I don't have the great big tanks, this is a small portable one we used to use for pressuring up microwave cable. Its about the same size as a scuba tank. Nice aluminum look finish, brass gauges, carry handle. Thats why I grabbed it.
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Joined: Jun 2004
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From: Tavistock, Ontario
The placards law usually has exemptions for small quantites but if you need them they would be for compressed gas. there green and have a picture of a gas cylinder on them. Unless there flamable then you would need the one for flamable compressed gas. I'd look it up for you but Transport Canada just changed a bunch of the requirements and i dont drive truck anymore so i havent kept up on it. If you want to go this route i would call Transport Canada and ask them. You could also call any company that deals with gases they'll be able to tell what the laws are. But if it requires placards you will likely need a dangerous goods permit also. The OBA system definetly has less red-tape involved.
Postmaster
Joined: Nov 2000
Posts: 2,557
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From: Texas
I had bought a small air tank at a tool show one time. I welded some bracket on it andd mounted it to the frame of my truck under the bed. Then I plumbed some fittings in the side of the bed for air chucks.since I had the quick connects, I could air it up at home easy enough but if I was on the road, THe tire stem type air fill valve worked graet for filling as well.
Before anyone asks, yes it was a bowtie vehicle, and yes, I always needed air. My truck was used for hauling mesquites to the bbq houses in town and I was always getting flats from them foot long thorns (slight exageration). Between plugs and compressed air, I was never stranded more than a few minutes.
Before anyone asks, yes it was a bowtie vehicle, and yes, I always needed air. My truck was used for hauling mesquites to the bbq houses in town and I was always getting flats from them foot long thorns (slight exageration). Between plugs and compressed air, I was never stranded more than a few minutes.
Post Fiend
Joined: Oct 2002
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TeeHee....
I am SURE you are correct about those foot long thorns !!!
reminds me of a bud that was going to look at some property to buy southwest of DFW...
Opened the gate - rode around the fields for a bit - and while closing the gate when finished...
noticed all four tires going down :-)
If I hadn't been with him, I would have cracked up....
3 hours later and lot's of walking - we were headed home !!!!
Found out later that 2 or 3 foot tall grass had mesquites that had been cut down just long enough for them to be hard as nails (which is probably what the original settlers of this area used them for !!! in addition to weapons
I am SURE you are correct about those foot long thorns !!!
reminds me of a bud that was going to look at some property to buy southwest of DFW...
Opened the gate - rode around the fields for a bit - and while closing the gate when finished...
noticed all four tires going down :-)
If I hadn't been with him, I would have cracked up....
3 hours later and lot's of walking - we were headed home !!!!
Found out later that 2 or 3 foot tall grass had mesquites that had been cut down just long enough for them to be hard as nails (which is probably what the original settlers of this area used them for !!! in addition to weapons