[Jewelry making - Article 00013] - [Orchid] O2 Little Torch on big tank

[H. Deiser]

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    I'm planning on hooking my Little Torch into my main service (big
    outside tank, black pipe = high pressure line running into the
    workshop).  My guys needed to know the technical specs on the torch
    so they could hook it in properly (required pressure, adapter type,
    whatever) which I didn't know so I called Rio Grande, thinking I
    would be able to get a spec sheet mailed to me. 

    Instead the guy at Rio Grande acted like I was brain damaged to even
    ask, said he'd never even heard of trying to do such a thing (you
    guys have, haven't you?  Seems I've seen postings about this in old
    archives).  I wasn't sure enough of what the guys wanted to really
    even know what to ask.  He finally ended up telling me the little
    torch needed 15 lbs of pressure (sounds pretty high for a small
    torch, seemed to me) and had no idea about adapters.  He was even
    sort of surly about it.  I DID manage to wangle the 800 number for
    Smith out of him, though, luckily. 

    The guy at SMITH said the max pressure a little torch would ever
    need is TEN (not fifteen) lbs and gave me the name of the connector
    on the regulator that comes with it so that the guys would know what
    adapter they needed.  In fact he sort of choked when I told him what
    Rio Grande had told me, so I guess I'm glad I called them. 

    I would say I trust the manufacturer more than a surly Rio Grande
    employee so I guess that's the info I'll pass on to my guys.  I will
    say that this is the first and only time Rio Grande personell have
    been, shall we say, less than helpful.  As far as I can figure, I'm
    going to require two regulators from my main tank, one to step down
    tank pressure to the 1/2 lb that household appliances use and one to
    step it down to the 10 lbs the Little Torch apparently needs (then
    the actual torch regulator after that).  Hopefully the guys are
    going to be more certain of this than I am. 

    I'd like to hear from anyone else currently running a O2 little
    torch of their main supply tank in case there's anything else about
    doing it this way that I should know (and I will have the flashback
    arrestors). 

    Also any info about storage of O2 tanks would be good - like safe
    temp ranges.  I do know they need to be battened down (fastened
    securely in an upright position) so they don't fall over and turn
    into a missile.  Other than that I don't know much about the O2 or
    where to place it. 

Thanks.
Sojourner


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