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Old 07-12-2007, 08:33 PM #43
acidrain
 
 
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Jeez people, I learned in IPS in 7th grade that oxegen is't flamable.
It is , however, an oxidizer (duh), and is needed for combustion.
It's not a fuel... period.

In theory, yes, an O2 bottle could be used for HPA (as long as the pressure rating is not exceeded), but who in their right mind would fill it?
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Old 07-12-2007, 08:39 PM #44
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http://designinsite.dk/htmsider/kb0168.htm

that one is an old sight, but if you look at the label, it's clearly a 3000psi tank. i wouldn't be suprised if an hpa tank could be used for oxygen, as long as the right regulator was mounted.

but i get your point. it's not ment for paintball, so i doubt anyone would fill it unless it had all the right DOT codes
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Old 07-12-2007, 09:05 PM #45
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They may be off on some of their stuff and certainly now and then they are. But this statement is iron clad and tells it all.

Quote:
Highly concentrated sources of oxygen promote rapid combustion and therefore are fire and explosion hazards in the presence of fuels. Oxygen itself is not the fuel, but as a reactant, concentrated oxygen may allow combustion to proceed dangerously rapidly.
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Old 07-13-2007, 06:21 PM #46
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Oxygen itself is not flammable but it is in fact an oxidizer and is a very crucial part in a combustion equation. If you take a Bunsen burner lighter and try to light pure oxygen nothing will happen. If you think taking a candle or a lighter and putting it in oxygen proves it is flammable itself which would in turn make it a fuel you are very wrong. In that situation there is already a fuel because the lighter or candle can burn on its own.
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Old 07-13-2007, 07:07 PM #47
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Quote:
Originally Posted by acidrain View Post
Jeez people, I learned in IPS in 7th grade that oxegen is't flamable.
It is , however, an oxidizer (duh), and is needed for combustion.
It's not a fuel... period.

In theory, yes, an O2 bottle could be used for HPA (as long as the pressure rating is not exceeded), but who in their right mind would fill it?
QFT.

Oxygen wont burn. it needs fuel and a ignition source


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Old 07-13-2007, 07:23 PM #48
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here's a good way of putting it. if oxygen were a fuel, in our environment, a fireplace would blow up the world
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Old 07-13-2007, 08:04 PM #49
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QFT.

Oxygen wont burn. it needs a oxidizer and a ignition source


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Nick, I think you typed that too fast and meant to say that oxygen IS the oxidizer or that "Oxygen won't burn. It needs a fuel and an ignition source" or something like that.

Getting back to the tanks. Any pressure cylinder be it for air, oxygen, argon or CO2 will have a DOT stamp in the US and a TC stamp in Canada. Usually both for the North American market. You can fill them with any gas as long as it doesn't exceed the max pressure stamped on the tank and provided the hydro date is valid.

I was talking to the guys at my local scuba shop and they mentioned that the hydro tester in our area has stamped new valid hydro dates on welding and other gas bottles that are over 100 years old. They check 'em inside to ensure they are not rusting and if good they hydro them. If they pass they get a new stamping. Some bottles have been through so often that the necks are full and they are stamping them on the base. The necks and bases being the thicker areas.

So if your oxygen bottles are the right pressure and you can put a scuba valve on them so they work with a fill station there's no reason at all why you can't get a welding supply place to fill them. Scuba shops used to require a valid certification card since they were worried about folks going diving with tanks filled by the shop but not knowing the right stuff and drowning or embolizing. But if you can go in and convince the shop that you're just using the air for paintball (if you're a teen then take one of your parents) you MAY get them to fill it for you. But they may not too.

The other option is to get a few bud's together and split on the rental and fill charges for a big welding shop sized 5 foot high bottle. Again, you'd need a parent of age to sign for the rental. You'll need a special fill adapter but if you can get one then you'll easily get 40 or so fills before it's down to around 1500 psi.
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Old 07-13-2007, 08:23 PM #50
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you could buy a fill station and fill the tank then charge your friends to use the air to fill their tanks or just use the air yourself
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Old 07-13-2007, 08:56 PM #51
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I am currently working on rigging up a fitting to use a small oxygen tank... the ones i have are stamped "Op. Press. 2945 PSI" so I figure they hold almost 3000 psi, and I have 5 of these tanks, so if i can dream up some adapter for cheap, i will just use those until they are all empty... then i dunno...
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Old 07-13-2007, 09:43 PM #52
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sweet cause i think im getting 3 or 4 =]
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Old 07-13-2007, 11:04 PM #53
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I am currently working on rigging up a fitting to use a small oxygen tank... the ones i have are stamped "Op. Press. 2945 PSI" so I figure they hold almost 3000 psi, and I have 5 of these tanks, so if i can dream up some adapter for cheap, i will just use those until they are all empty... then i dunno...

If they are smaller then they won't last long even when banked together. Definetly not worth the cost of the fittings to gang them together unless you can get them refilled. Also you need to use fittings, tubing and hoses that are all rated for more than that pressure. Nothing you can buy from the local hardware store is rated for this sort of pressure. Don't try it unless you get the right stuff or the fittings or lines could blow and you could end up with shrapenl flying around.

We all take it for granted because it seems so easy at the field and in our HPA bottles tucked in our armpits. But 3000 psi is not something to be treated lightly. It can easily end your life if it pushes some metal around like from a fitting that shatters.
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Old 07-13-2007, 11:16 PM #54
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If they are smaller then they won't last long even when banked together. Definetly not worth the cost of the fittings to gang them together unless you can get them refilled. Also you need to use fittings, tubing and hoses that are all rated for more than that pressure. Nothing you can buy from the local hardware store is rated for this sort of pressure. Don't try it unless you get the right stuff or the fittings or lines could blow and you could end up with shrapenl flying around.

We all take it for granted because it seems so easy at the field and in our HPA bottles tucked in our armpits. But 3000 psi is not something to be treated lightly. It can easily end your life if it pushes some metal around like from a fitting that shatters.
I have worked at a paintball store off and on for almost 10 years now. I understand the pressure and the dangers associated with it. The parts I have at my disposal are all rated at high pressures. They are used for running high pressure compressors and air tanks. Im just going to see if it will work.
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Old 07-13-2007, 11:18 PM #55
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Nick, I think you typed that too fast and meant to say that oxygen IS the oxidizer or that "Oxygen won't burn. It needs a fuel and an ignition source" or something like that.
thanx for catching that. i was busy while writing that out
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Old 07-13-2007, 11:37 PM #56
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I have worked at a paintball store off and on for almost 10 years now. I understand the pressure and the dangers associated with it. The parts I have at my disposal are all rated at high pressures. They are used for running high pressure compressors and air tanks. Im just going to see if it will work.
Then you're all set.

If you can set up a little fill bank for cheap and get it refilled somewhere on a regular basis you'll be all set for some private field fun with a few buddies. Good luck with the project.

Do you have any idea of how many cu inches they are when empty or what the filled volume is? Tanks seem to vary in how they are described. In paintball we call them by their unfilled volume and add on the pressure rating. In scuba we call them by the volume they hold when filled. It can sure get confusing and makes for a poor basis for comparisons.
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Old 07-14-2007, 12:25 AM #57
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Then you're all set.

If you can set up a little fill bank for cheap and get it refilled somewhere on a regular basis you'll be all set for some private field fun with a few buddies. Good luck with the project.

Do you have any idea of how many cu inches they are when empty or what the filled volume is? Tanks seem to vary in how they are described. In paintball we call them by their unfilled volume and add on the pressure rating. In scuba we call them by the volume they hold when filled. It can sure get confusing and makes for a poor basis for comparisons.
tank diameter is about the same size as a 47/3000 steel tank, but is is a little over 2 1/4 feet tall... they all fit into this little cart thing

EDIT: I thought that if i can rig up a remote line... I would wear some of my grandpas old clothes and some leather dress shoes and go play with an old spyder and be dragging that tank behind me...
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Old 07-14-2007, 12:50 AM #58
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tank diameter is about the same size as a 47/3000 steel tank, but is is a little over 2 1/4 feet tall... they all fit into this little cart thing

EDIT: I thought that if i can rig up a remote line... I would wear some of my grandpas old clothes and some leather dress shoes and go play with an old spyder and be dragging that tank behind me...
YOU SHOULD USE MY SPYDER WITH BREAKBEAM BUT YOU WOULD NEED A BIG PODPACK ITS FAST =]
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Old 07-14-2007, 12:54 AM #59
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YOU SHOULD USE MY SPYDER WITH BREAKBEAM BUT YOU WOULD NEED A BIG PODPACK ITS FAST =]
i was thinking my old Compact 2000 with a huge drop, expansion chamber, 14" J&J Ceramic barrel, and 2pc Dye "Carbon" grips.
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Old 07-14-2007, 01:39 AM #60
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fine spyder war of ups

amg classic
rare i.s. board with break beam eyes
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acp frontblock reg adaptor very rare
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i win =] j/k but are those carbon or actually carbon fiber grips?
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Old 07-14-2007, 02:00 AM #61
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ok this is an air tank Q
and now all were all scientist
he doesnt want to hear you scientist argure how to cure cancer hes asking to fill a air tank
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Old 07-14-2007, 12:17 PM #62
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but are those carbon or actually carbon fiber grips?
as far as the war goes... mine was recently given approval by my grandpa as far as how it looks... I think it would go good with an oxy/HPA tank in a cart

they are clear plastic with a carbon-fiber-ish type sticker on the inside
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Old 07-14-2007, 01:43 PM #63
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.......I thought that if i can rig up a remote line... I would wear some of my grandpas old clothes and some leather dress shoes and go play with an old spyder and be dragging that tank behind me...


LOL! Let me know how it works out. I'm not that far off needing that setup for real with a T fitting to go to my nose as well as the marker....
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