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Old 08-02-2011, 09:50 PM   #1
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Hi pressure scuba tank to fill up tires???

I had a buddy of mine tell me that it is possible to use a scube tank, 3000psi, to fill up tires. It makes since to me, all you would need is a regulator and the right fittings right? Is this even possible? has anyone used this idea before? The idea would to use it over and over again, and then take it to be filled up once its out.

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Old 08-02-2011, 10:11 PM   #2
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Old 08-03-2011, 12:59 AM   #3
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Theres a lot of good stuff on there but nothing for sure, However i did find a co2 tank kit, cost 200 bucks, but had everything you need to use it just as a tire inflator..pretty neat max psi was 150
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Old 08-03-2011, 01:17 AM   #4
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I use a scuba tank to fire my tennis ball launcher....at speeds up to 140 mph.


It leaves bruises.
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Old 08-03-2011, 01:33 AM   #5
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I use a scuba tank to fire my tennis ball launcher....at speeds up to 140 mph.


It leaves bruises.
I don't know what this has to do with the thread...but I don't care because that's freaking awesome!
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Old 08-03-2011, 04:12 AM   #6
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My father worked for a welding supply company and we would use Nitrogen tanks. They sell all the regulators and fittings and will refill as needed. The tanks we used were the large stand up tank, but smaller were available. Might stop into a place like that and check it out.
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Old 08-03-2011, 07:23 AM   #7
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If you're going to use a HP SCUBA cylinder for air storage, keep in mind that you'll also need a regulator and fittings. And most SCUBA shops are going to require a yearly visual inspection and a hydrostatic test every 5 years before they'll fill it for you.
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Old 08-03-2011, 07:34 AM   #8
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Just get a CO2 tank setup and call it done. Most SCUBA places require a dive certification before they'll fill a SCUBA tank with air. CO2 tanks also require testing/inspection every few years, but you can fill up w/o a certification at welding places or even fire extinguisher shops.
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Old 08-03-2011, 07:38 AM   #9
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Me being I fireman, I takealong an old scba tank to refill tires, blow up air mattress, and pool floats when we go camping, its great! 4500 psi, or 45 minutes breathing time(if used on an airpak)
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Old 08-03-2011, 08:01 AM   #10
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I have seen it used the guys hooked it yup to his bc hose off his reg
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Old 08-03-2011, 08:30 AM   #11
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Here's my reg and line, rated for 5000 psi, soft tip blower and needle for inflating balls and stuff is in center console, I like it, works good
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Old 08-03-2011, 09:30 AM   #12
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As one who owns three scuba tanks, I would (and do) use a 10 lb. C02 tank or compressor before I'd use them.
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Old 08-03-2011, 09:43 AM   #13
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As one who owns three scuba tanks, I would (and do) use a 10 lb. C02 tank or compressor before I'd use them.
Jerry, I saw your info on jeepforum in the link that someone posted earlier in this thread. It gave a list of the stuff that you are running for around 140 bucks. Do you have an estimate of how many air ups or tires you can fill with the 10 lb tank? I have a compressor, but since going to 35s, it has shown to be slower than when I was on 32s. So I have been considering the CO2 option...
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Old 08-03-2011, 09:56 AM   #14
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I'm probably getting somewhere between four and five offroad trips from one fillup. That's taking four 35" tires from 7-10 psi to 25 psi. I'm not really tracking it that closely but I'm thinking that is pretty close. One thing that is pretty cool is the ability to tell exactly how much C02 is in the tank by weighing it with my digital bathroom scale. The tank's empty (tare) weight is 14 lbs. and it holds 10 lbs. of C02 so that means it weighs 24 lbs. full. 19 lbs. means a half-full tank, etc.
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Old 08-03-2011, 10:02 AM   #15
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Originally Posted by Jerry Bransford View Post
I'm probably getting somewhere between four and five offroad trips from one fillup. That's taking four 35" tires from 7-10 psi to 25 psi. I'm not really tracking it that closely but I'm thinking that is pretty close. One thing that is pretty cool is the ability to tell exactly how much C02 is in the tank by weighing it with my digital bathroom scale. The tank's empty (tare) weight is 14 lbs. and it holds 10 lbs. of C02 so that means it weighs 24 lbs. full. 19 lbs. means a half-full tank, etc.
Thats not bad at all. I may have to look into that. I hate waiting 20-30 minutes to fill up my tires when everyone else is almost done. Thank you.
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Old 08-03-2011, 10:20 AM   #16
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Originally Posted by Jerry Bransford View Post
I'm probably getting somewhere between four and five offroad trips from one fillup. That's taking four 35" tires from 7-10 psi to 25 psi. I'm not really tracking it that closely but I'm thinking that is pretty close. One thing that is pretty cool is the ability to tell exactly how much C02 is in the tank by weighing it with my digital bathroom scale. The tank's empty (tare) weight is 14 lbs. and it holds 10 lbs. of C02 so that means it weighs 24 lbs. full. 19 lbs. means a half-full tank, etc.
Another nice benefit of using CO2 is that when it's compressed it becomes a liquid, if the tank ruptures the liquid will have to boil off to become a gas again. Compressed air compresses about 400:1 ratio, if the tank ruptures at 3000/4500psi you're basically sitting on a bomb.
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Old 08-03-2011, 10:37 AM   #17
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Originally Posted by necromancer_tat

Another nice benefit of using CO2 is that when it's compressed it becomes a liquid, if the tank ruptures the liquid will have to boil off to become a gas again. Compressed air compresses about 400:1 ratio, if the tank ruptures at 3000/4500psi you're basically sitting on a bomb.
Maybe, but Ill run into a burning building with this carbon fiber "bomb" on my back!!!! Lol if its my time, then its my time, I know yalls way is better, but my way is free (to me)
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Old 08-03-2011, 11:15 AM   #18
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I don't know what this has to do with the thread...but I don't care because that's freaking awesome!
It's relevant to the thread by proving you can do just about anything with 3000 psi
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Old 08-03-2011, 11:17 AM   #19
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Originally Posted by Jerry Bransford
I'm probably getting somewhere between four and five offroad trips from one fillup. That's taking four 35" tires from 7-10 psi to 25 psi. I'm not really tracking it that closely but I'm thinking that is pretty close. One thing that is pretty cool is the ability to tell exactly how much C02 is in the tank by weighing it with my digital bathroom scale. The tank's empty (tare) weight is 14 lbs. and it holds 10 lbs. of C02 so that means it weighs 24 lbs. full. 19 lbs. means a half-full tank, etc.
Raw
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Old 08-03-2011, 11:21 AM   #20
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Raw?

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Old 08-03-2011, 11:23 AM   #21
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Raw?

(I think I'm just getting too old for today's terms )
Hell I'm 31 and I'm lost too!! Please explain
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Old 08-03-2011, 11:37 AM   #22
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I too am a SCUBA diver and a Firefighter, so I have access to a 4500 psi compressor to fill SCUBA and SCBA bottles for free. Compared to CO2 I don't get a lot of tire fill ups on compressed air or nitrogen because the gas is in a compressed state and the more you use the lower and lower the tank pressure gets. I went to CO2 because it is in a liquid state and the gas is formed from evaporation of the liquid CO2 in the tank and the bottle stays at a constant 750psi @70*F until the liquid has evaporated. Not to mention I would not want to take a risk of compromising my air tanks for breathing. The CO2 tank does not have to sustain my life in a hazardous environment.
Like Jerry I made my own CO2 set up for a lot less than the ready made kits.
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Old 08-03-2011, 11:48 AM   #23
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Originally Posted by Jerry Bransford
Raw?

(I think I'm just getting too old for today's terms )
Synonym of awesome.

Never thought of weighing a co2 tank.
But I'm a do-er not a thinker.
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Old 08-03-2011, 12:43 PM   #24
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Quote:
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I too am a SCUBA diver and a Firefighter, so I have access to a 4500 psi compressor to fill SCUBA and SCBA bottles for free. Compared to CO2 I don't get a lot of tire fill ups on compressed air or nitrogen because the gas is in a compressed state and the more you use the lower and lower the tank pressure gets. I went to CO2 because it is in a liquid state and the gas is formed from evaporation of the liquid CO2 in the tank and the bottle stays at a constant 750psi @70*F until the liquid has evaporated. Not to mention I would not want to take a risk of compromising my air tanks for breathing. The CO2 tank does not have to sustain my life in a hazardous environment.
Like Jerry I made my own CO2 set up for a lot less than the ready made kits.
My kit was just over $100 when I made it myself (tank, CO2 reg, hose, and tire attachment).
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Old 08-03-2011, 01:56 PM   #25
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My father worked for a welding supply company and we would use Nitrogen tanks. They sell all the regulators and fittings and will refill as needed. The tanks we used were the large stand up tank, but smaller were available. Might stop into a place like that and check it out.
I am definetly going to have to look for some in my area, i found a couple co2 tanks on craiglist. so we will see.
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Me being I fireman, I takealong an old scba tank to refill tires, blow up air mattress, and pool floats when we go camping, its great! 4500 psi, or 45 minutes breathing time(if used on an airpak)
I was a fire explorer before joining the military, i love scbas,
Quote:
Originally Posted by Jerry Bransford View Post
I'm probably getting somewhere between four and five offroad trips from one fillup. That's taking four 35" tires from 7-10 psi to 25 psi. I'm not really tracking it that closely but I'm thinking that is pretty close. One thing that is pretty cool is the ability to tell exactly how much C02 is in the tank by weighing it with my digital bathroom scale. The tank's empty (tare) weight is 14 lbs. and it holds 10 lbs. of C02 so that means it weighs 24 lbs. full. 19 lbs. means a half-full tank, etc.
I am definetly leaning towards the co2 tank. the only thing that is stopping me is having to fill up the tank everytime it runs out, that has to get kind of expensive.
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My kit was just over $100 when I made it myself (tank, CO2 reg, hose, and tire attachment).
What size tank, and how much is it to fill it.
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Old 08-03-2011, 01:58 PM   #26
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Where can you get CO2 filled at?
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Old 08-03-2011, 02:01 PM   #27
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I use 20# tanks and it costs me $15 per CO2 fill up. They can be filled at most welding supply stores as well as fire extinguisher/ Fire suppression system companies. The fire extinguisher stores will have the mounts for the tanks as well.
erickpl- Thats about the same price I paid including hydro-testing the tank, fill, fixed rate regulator, etc.
One thing worth mentioning. I used a milton S-657 double swivel at the regulator for the hose to connect to. The stock o-rings would shrink with the cold temps (-70*F) of the CO2 and leak. So I bought some silicone o-rings and installed them and it has not leaked since.
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Old 08-03-2011, 03:13 PM   #28
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[QUOTE=Ggg;1434940Compared to CO2 I don't get a lot of tire fill ups on compressed air or nitrogen because the gas is in a compressed state and the more you use the lower and lower the tank pressure gets. I went to CO2 because it is in a liquid state and the gas is formed from evaporation of the liquid CO2 in the tank and the bottle stays at a constant 750psi @70*F until the liquid has evaporated.[/QUOTE]

This is exactly why people use CO2 WAY more than scuba tanks. But if you have a scuba tank, it will work.
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Old 12-25-2012, 10:32 PM   #29
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I just got the 10lb Smittybilt system. How are you guys mounting them in your Jeep, or are you? Or do you just have some velcro straps and strap them in? post pics and where you got your mount, please.
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Old 12-26-2012, 09:48 AM   #30
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The scba tanks work well. Dont even use a regulator, just a little judgement on how far to crack the valve. When older style bottles reach hydro date we usually give them away. Scott 4500 lasts a long time filling tires or running air tools on the trail. No more dangerous then us in the firefighting profession using them to inflate rescue boats and ramps, air bags, or spaat tools and air chisels. Like anything, if your careless or stupid, you can get hurt. But ya cant fix stupid, not even with duct tape.

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