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#41
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On Sun, 26 Dec 2004 06:04:35 GMT, zatatime wrote:
On Sun, 26 Dec 2004 05:23:12 GMT, "G.R. Patterson III" wrote: wrote: They also tell me that bulk medical tanks are "purged" once, inspected, and filled. ABO tanks are "purged" twice, inspected, and filled. Welding tanks are given a quick conformity inspection and filled. Where and how often? What I mean is this. I go down to a shop in Piscataway to get my welding bottles filled. They exchange bottles there, so I actually just pick up a new bottle. Is the "bulk bottle" the one they give to me, is it a storage container they keep, or is it even further up the supply chain? I'm not sure how big your supply company is, but I can tell you what happens with mine. When I drop off a tank, I get a new one that has been inspected and filled at the welding supply company. Smaller wedling shops get shipments of tanks pre-filled from the larger ones. I think this is what you were asking. Hope it helped. I'd never get an aircraft oxygen tank filled at a welding supply shop. Our local supplier supplies welding shops, hospitals, and industry I'm pretty sure one branch also supplies aviation, but perhaps Dennis knows more specifically. Roger Halstead (K8RI & ARRL life member) (N833R, S# CD-2 Worlds oldest Debonair) www.rogerhalstead.com z |
#42
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On Sun, 26 Dec 2004 05:23:12 GMT, "G.R. Patterson III"
wrote: wrote: They also tell me that bulk medical tanks are "purged" once, inspected, and filled. ABO tanks are "purged" twice, inspected, and filled. Welding tanks are given a quick conformity inspection and filled. Where and how often? What I mean is this. I go down to a shop in Piscataway to get my welding bottles filled. They exchange bottles there, so I actually just pick up a new bottle. Is the "bulk bottle" the one they give to me, is it a storage container they keep, or is it even further up the supply chain? Kinda depends what type of facility you have locally. Some facilities just ship out empties, and ship in full "exchange" bottles. I'm sorry if I wasn't clear, by bulk tank, I was referring to the typical 4+ foot tall bottle, opposed to a walk-around size O2 bottle. I've got a set of small oxy/acet tanks that were given to me years ago. Initially, I had to purchase a different acet tank (at a reduced cost, trading in my obsolete tank). I pay a higher "exchange" rate when swapping tanks. If I was leasing tanks, the "exchange" fills would be cheaper. "Welding" O2 tanks are inspected for hydro date, and the valves are given a look see to ensure condition, and that they aren't valves subject to replacement (there are bulletins occasionally against "bad" valves). Any required repairs are accomplished, and they are filled. "Medical" and ABO tanks go through a similiar process, but are "purged" prior to refilling. Our ABO exchange tanks come from somewhere outside of the local facility, usually with only a couple of days lead time. TC |
#43
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#44
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On Sun, 26 Dec 2004 23:08:49 -0500, Roger
wrote: When I drop off a tank, I get a new one that has been inspected and filled at the welding supply company. Smaller wedling shops get shipments of tanks pre-filled from the larger ones. Our local supplier supplies welding shops, hospitals, and industry I'm pretty sure one branch also supplies aviation, but perhaps Dennis knows more specifically. I guess you're one notch above in the supply chain. z |
#45
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Roger, my source of information is the guy who drives the liquid oxygen
truck... In the past he delivered to all customers from the same truck...They now have a large truck they use mainly for hospital and larger industrial deliveries from Flint to Traverse City, because of the volume required at each fill... They have smaller trucks that deliver to small volume customers, welding shops, etc. because the small trucks can back down the alleys, and get into tight areas more easily... . He said the hardest part when his employer bought the big tanker trucks and split off the smaller routes was teaching the new drivers how to find the back alley shops all over the state he had been delivering during the previous 15 years... He is literally a walking street map... Name a town and an intersection from Flint, north, and can usually name the businesses in the area... I suspect there are increasing regulations on ABO tanks at the retail level simply due to the need for the folks who work at various levels of government to justify their salary, office, and secretary... But the bottom line is that if you are going to use oxygen in the plane and fill the tank more than once a year, you are money ahead to buy a pair of brand new 80 cubic foot, welding oxygen bottles ($140 each) and the adapter hoses (~$100) and refill the airplane bottle yourself... You get the 80CF bottle refilled at the local air gas dealer or welding shop for $14 (here in Michigan, ymmv)... For those who feel that this simply cannot be safe because it doesn't cost enough, go ahead and pay the Airgas dealer $50 for each refill.. Denny... |
#46
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"Viperdoc" wrote in
: Our FBO charges $40 for a fill of my tanks, regardless of size. I took it to our local compressed gas dealer, and they refused to fill the tank, since it required ABO, The next key word is "or equivalent" !! which is tested to a higher standard than welding oxygen or medical oxygen, even though they all come from the same source. Actually, welding oxygen has a higher purity requirement than either medical or ABO. But hardly matters... if they don't want to do it, not much point in arguing with them. ----------------------------------------------- James M. Knox TriSoft ph 512-385-0316 1109-A Shady Lane fax 512-366-4331 Austin, Tx 78721 ----------------------------------------------- |
#47
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#48
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Because medical O2 vendors never "fill" bottles. They simply exchange.
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#49
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Robert M. Gary wrote:
Because medical O2 vendors never "fill" bottles. They simply exchange. Speak for yourself. The medial O2 vendor that I use never hand a problem doing a fill on my tank. Its an E sized bottle and he just mixes it in with the rest of that tanks he fills that day. The downside is that he has to have it over night. The upside of the downside is that he will deliver it to my place of work the next day free of charge. If anybody in the Columbia River Gorge area needs a tank filled, I'm using Mid-Columbia Medical Equipment in The Dalles. -- Frank Stutzman Bonanza N494B "Hula Girl" Hood River, OR |
#50
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On 27 Dec 2004 04:56:45 -0800, "Denny" wrote:
Thanks, simply cannot be safe because it doesn't cost enough, go ahead and pay the Airgas dealer $50 for each refill.. Would they charge that much at AirGas when a full size refill is only $10 to $14? OTOH, I already have one tank and it wouldn't take much to get another. I lease mine, but there is little difference in cost and it's all up front. Besides, if anything happened to me they could just return them. $100 for the filling line really isn't much and I think it'd be worth it just for night flying. Owning brings up some other issues. Roger Halstead (K8RI & ARRL life member) (N833R, S# CD-2 Worlds oldest Debonair) www.rogerhalstead.com Denny... |
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