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Thread: question on air tanks,

  1. #1
    Boolit Buddy
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    Question question on air tanks,

    currently scoping out air sources before I buy a gun,

    I see all the scuba tanks ect, and see the costs, and wonder why we never hear about using the air tanks from a weld supply place, (which I have a inside line on stuff),

    any reason I cannot use regular tanks ???
    best one of the month,

    about unique and IMR unequal, They really did duplicate it, made it equally unobtainable

  2. #2
    Boolit Master GARD72977's Avatar
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    You can use any tank that holds 3k PSI. I would want at least 4500psl. There are guys that use 6000psi nitrogen tanks. The cost of regulators and fill hoses get expensive quick. Those big tanks aren't mobile.

    If you already have a tank and regulator you will just need a fill those.
    " If you cant do it with a 308 , you dont need to do it!

  3. #3
    Boolit Master GARD72977's Avatar
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    One more thing. The airgun tanks have a slow fill valve. This just slows down how fast you fill your gun. It makes it easier to get to a accurrate fill pressure.
    " If you cant do it with a 308 , you dont need to do it!

  4. #4
    Boolit Master

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    Go with a CF Tank. You'll get more fills between trips to the dive shop than a standard aluminum tank a 3500 psi. The weld tanks are only filled to 2300 psi I believe and the are kindy awkard to handle.

  5. #5
    Boolit Master
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    Just as a possible alternative... When indoor (gunpowder-propelled) shooting became verboten at a club I belong to, the alternative was to switch to -- for winter shooting -- PCP air rifles. My choice, which I *do* regret maybe 2% or 3% , was to buy a Hill air pump and an extra air cylinder for my PCP rifle. It was indeed the cost effective way to go. The only "bad part" it -- for this 70-yr-old -- is it IS a bit of a work-out to fill the cylinders to requisite pressure. In my case, I c-clamped a hinge to my drill press table, with a 7-foot (scrap) angle iron also fastened to the now-free half of hinge. I slip a nylon cable-tie to "connect" Hill pump handle with the aluminum angle iron, and -- albeit it takes between 12 and 15 minutes to do -- I get each cylinder filled -- time is now greater than effort . I didn't want to spend the bucks to deal with tanks; there are no evenly remotely fillers close to commercially fill them if I had; and, they have a finite life before needing to be periodically hydro-statically tested (what fellow in welding store told me). I bought my Hill pump on-line from Pyramid Air -- again, you may wish to explore your pros and cons re using a pump rather than a tank. Good luck!
    geo

  6. #6
    Boolit Buddy rsterne's Avatar
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    Whatever you do, absolutely DO NOT USE OXYGEN to fill a PCP.... Any residual oils inside the gun can combust and explode if you do.... While Argon is "safe" to use, the performance is poor.... Stay with Nitrogen or Air.... Many welding tanks are only filled to 2300 psi, which obviously won't fill a 3000 psi airgun.... You can buy Nitrogen in 6000 psi bottles, but they weigh 300 lbs.... So the answer to your question is "maybe", but make sure you use the correct gas, and that your tank is safe at the pressure you want to fill it at....

    Bob

  7. #7
    Boolit Master
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    I bought a couple of scott SCBA tanks off of ebay. They're out of the 15 year service date but the condition is good and they work fine. Plenty of them on ebay.

    Ebner

  8. #8
    Boolit Master
    georgerkahn's Avatar
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    The wife of a close friend was putting air in one of her low auto's tires, and the portable air tank fragmented! The shrapnel from this tank took the meat -- e.g, skin, muscles, and all - from her wrist to elbow on her left arm. She was most fortunate that after almost three months of treatment at a 175-mile distant hospital she was transported to, between extensive graftings and surgeries, she did not lose the limb, and has 30%-50% use of it -- this after two and one-half years! NOTE: the portable tank had a 200psi rating and Rick, her husband, believed the pressure when it blew was in the eighty psi range! For PCP use, the pressure range on filled tanks is from two THOUSAND, five hundred to THREE THOUSAND p.s.i.. There is a reason why tanks are being sold on eBay... If/should you go that route -- PLEASE do yourself and others a big favor and have them hydro-statically tested!!! The "service date" is there for a reason!!!
    geo

  9. #9
    Boolit Master
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    Quote Originally Posted by ebner glocken View Post
    I bought a couple of scott SCBA tanks off of ebay. They're out of the 15 year service date but the condition is good and they work fine. Plenty of them on ebay.

    Ebner
    As georgerkahn said those SCBA, SCUBA and I would say any pressure tank needs to be inspected by code, both Visual at X amount of years and Hydro-statically every X amount of years. That was something our VFD had done religiously, no sense in chancing a blowout that could seriously wound or even kill someone.
    Also and especially if it is a fiber wound tank, it is possible for a fiber wound tank to have interior damage and look ok on the outside if it had been hit on the edge of something. Please have it tested.

  10. #10
    Boolit Master
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    My bad, perhaps I should have told a bit more. No way would I have a tank with 4500 psi in it without being inspected and tested. In the circle of people I associate with this is a nonissue. As long as the tank has been treated reasonably well and has not been exposed to solvents, ect 99.9% of them out there will pass inspection just fine. I don't believe any of us have a 20 year old tank we are going in and out of burning buildings with. It does help to know the history of the tank, many of them are cycled very little in the 15 year service life. They hang on a wall in case of an emergency to escape with and are used once a year for training (these are the ones you want to find). The guys that scare me are the ones that have a almost new tank they store on a shelf right under a jug of acetone.

    Yes, any tank that holds this kind of pressure is a potential bomb, treat it with due respect.

    Ebner

  11. #11
    Boolit Master

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    Thanks Ebner,
    I was that guy yesterday, yes a pint can of acetone is stored above where the tank sat. Sure the can was closed, but gravity is so darned persistent.
    The tank is moved away from there, while a more secure storage plan is contemplated.

  12. #12
    Boolit Buddy
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    I started out with a 4500 psi hand pump which I got off FleaBay for $35 delivered. It works ... BUT ... its a cardio work out. If you have a weak heart or fear of a heart attack while exercising you might want to consider another option. I considered buying a large tank and then having a local fire department fill it but that is not always convenient. After much deliberation I purchased a small portable CF Benjamin tank, direct from Crosman, using a 25% discount code which is AGNATION . Then I purchased Yong Heng 120V 4500 psi compressor from FleaBay for $180 and it works GREAT!!! It takes 7 seconds to fill my PCP rifle from my compressor or I can fill my CF Benjamin tank in about 5 minutes. If I am shooting at home, I fill my rifle direct from the compressor and if I am out hunting. I put my CF tank, in a Thrift Store, $2 book bag / back pack and top my rifle off in the field. I have no regrets and would do it all over the same, except going the hand pump route.

  13. #13
    Boolit Buddy
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    Smile this old age stuff sucks,I forgot about this thread, till now,

    wow, talk about lots of good info, ok, heres where Im at now,

    got the grandkid a crosman challenger, for the local 10m shooting sports group, now he can leave the stock and sights set for him instead of wasting range time fiddling with what ever gun he got given,

    as to the scuba tank end of things,semi local place (2 hr drive)will not refill unless you have a divers cert, and tank has been tested ,

    the one guy that gets the tank filled for the club, uses the local firedept to recharge that tank, which is fine, but I was looking being a little independent than relying strictly on one angle to recharge your air source, at the clubs place,

    as to the welding gas supplier, they only carry air in the larger tanks, that are at 23-2500psi depending on what the temp is, and the price is below a scuba tank , (which runs 325 used around here, through people I know), , without the filling hassles, this is worth a lot in some ways, considering the stink eye looks I got when asking around about getting a scuba tank refilled, with some local fire dept people and a 10 minute talk till they understood I really was not going to try diving with it, if I had one,

    so that's where im at right now,
    best one of the month,

    about unique and IMR unequal, They really did duplicate it, made it equally unobtainable

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Abbreviations used in Reloading

BP Bronze Point IMR Improved Military Rifle PTD Pointed
BR Bench Rest M Magnum RN Round Nose
BT Boat Tail PL Power-Lokt SP Soft Point
C Compressed Charge PR Primer SPCL Soft Point "Core-Lokt"
HP Hollow Point PSPCL Pointed Soft Point "Core Lokt" C.O.L. Cartridge Overall Length
PSP Pointed Soft Point Spz Spitzer Point SBT Spitzer Boat Tail
LRN Lead Round Nose LWC Lead Wad Cutter LSWC Lead Semi Wad Cutter
GC Gas Check