Larger Oxygen Tank for Mapp/Oxy Brazing Torch?
Jonathan M. Elson
Kenneth Silverstein (ken...@vividnet.com) wrote:
: I've been getting a lot of use out of my Mapp Gas/Oxygen torch. (I
: think it's called a Tote Torch by Bernzomatic). It's frustrating and
: expensive to use the 1.1 cu ft disposable Oxygen cylinders, which, of
: course, I go through about 10 times faster than the fuel ones. Is there
: any way to use a larger, refillable Oxygen cylinder with this setup?
: The torch only has metering valves w/o a regulator/gauge assembly. I
: imagine I'd have to use a regulator on the larger tank to adjust the
: pressure down to that of a 1.1 cu ft tank (whatever that is), and this
: regulator would have to connect to the LH thread of metering valve on
: the existing hose.
That is not correct. The MAPP is just a valve, but the Oxygen is
regulated.
I got a purchase/exchange 20 Cu Ft cylinder from our local welding/gas
supplier, a single stage regulator, and even the fitting for adapting
the regulator output to the Bernzomatic hose. This all cost a little
over $100, including the first fill of the tank. I just refilled it
for the first time - $10! So, that is 20 x the contents of the
Bernzomatic O2 tanks, for 12% more money (assuming ~$8 for the Bernzomatic
O2 tank). I still use the MAPP tanks, which last long enough to make
it reasonable on cost and convenience. Just throw away the Bernzomatic
regulator (or keep it for Sunday emergencies, when you can't get a refill
on the large tank).
I use two large hose clamps to strap the MAPP tank to the side of the O2
tank.
Jon
Barry Criner
Does anyone remember the Solidox torch? Bought mine from a guy selling
them out of the trunk of his car. The tablets you burned to produce O2
were really a pain in the butt to use. You had to plan your welding
time carefully. I converted mine to a small O2 bottle and standard
regulator.
Kenneth Silverstein
I've been getting a lot of use out of my Mapp Gas/Oxygen torch. (I
think it's called a Tote Torch by Bernzomatic). It's frustrating and
expensive to use the 1.1 cu ft disposable Oxygen cylinders, which, of
course, I go through about 10 times faster than the fuel ones. Is there
any way to use a larger, refillable Oxygen cylinder with this setup?
The torch only has metering valves w/o a regulator/gauge assembly. I
imagine I'd have to use a regulator on the larger tank to adjust the
pressure down to that of a 1.1 cu ft tank (whatever that is), and this
regulator would have to connect to the LH thread of metering valve on
the existing hose.
Anyone have any advice on how to do this?
Robert LaGrand
Kenneth,
Jon gives very good advice. My wife makes silver jewelry with
lampworked glass beads and uses a *lot* of oxygen. We did roughly
the same thing except I replaced the MAPP gas with Propane because
it burns cleaner for glass & jewelry. I believe MAPP is intended for
use in single bottle fuel/air torches where higher temperatures are
needed. I eventually replaced the Bernz-o-matic propane side with an
RV sized propane tank and a 2 stage regulator but we are still using
the little torch. It's great!
Recently I posted a question about using used oxygen concentrators from
the home healthcare industry in her studio instead of bottled oxygen.
I attached one to her glass torch and another one to the little
torch and they are working well as a replacement for bottled oxygen.
They produce oxygen on demand so there are additional bonus features
such as allowing me to eliminate from my home the potential health/fire
hazard that a large quantity of oxygen represents and freeing me from the
need to refill the large tank and it's companion Sunday emergencies.
Because I wrote that I had acquired a large number of these units several
people have e-mailed me about purchasing one. If you want to try one there
are quite a few of them left and they are only a little more expensive
than the bottle/regulator set-up.
Robert in Kansas
In article <5tco93$em2$1...@newsreader.wustl.edu>, jme...@artsci.wustl.edu
(Jonathan M. Elson) wrote:
> Kenneth Silverstein (ken...@vividnet.com) wrote:
> : I've been getting a lot of use out of my Mapp Gas/Oxygen torch. (I
> That is not correct. The MAPP is just a valve, but the Oxygen is
> regulated.
>
> I got a purchase/exchange 20 Cu Ft. cylinder from our local welding/gas
d...@telus.net
> Kenneth Silverstein (ken...@vividnet.com) wrote:
> : I've been getting a lot of use out of my Mapp Gas/Oxygen torch. (I
> : think it's called a Tote Torch by Bernzomatic). It's frustrating and
> : expensive to use the 1.1 cu ft disposable Oxygen cylinders, which, of
> : course, I go through about 10 times faster than the fuel ones. Is there
> : any way to use a larger, refillable Oxygen cylinder with this setup?
>
> : The torch only has metering valves w/o a regulator/gauge assembly. I
> : imagine I'd have to use a regulator on the larger tank to adjust the
> : pressure down to that of a 1.1 cu ft tank (whatever that is), and this
> : regulator would have to connect to the LH thread of metering valve on
> : the existing hose.
>
> That is not correct. The MAPP is just a valve, but the Oxygen is
> regulated.
>
> the regulator output to the Bernzomatic hose. This all cost a little
> over $100, including the first fill of the tank. I just refilled it
> for the first time - $10! So, that is 20 x the contents of the
> Bernzomatic O2 tanks, for 12% more money (assuming ~$8 for the Bernzomatic
> O2 tank). I still use the MAPP tanks, which last long enough to make
> it reasonable on cost and convenience. Just throw away the Bernzomatic
> regulator (or keep it for Sunday emergencies, when you can't get a refill
> on the large tank).
>
> I use two large hose clamps to strap the MAPP tank to the side of the O2
> tank.
>
> Jon
David Billington
what I use these days with my oxy propane torch. In the UK they're
available on ebay and at least one glass supplier sells them for glass
bead making https://tuffnellglass.com/contents/en-uk/d103.html . I know
of one guy that has IIRC 8 which he connects together for making larger
glass pieces. IIRC the connection is 9/16 UNF and I made the nut myself
and used a 1/4" hose tail, don't over tighten as the Devilbiss one I
have has a brass connection which is moulded into plastic the the small
plastic lug can shear DAMHIK. Easy to get at and repair though.
Jim Wilkins
news:7f70c5df-8f82-4439...@googlegroups.com...
> I got a purchase/exchange 20 Cu Ft cylinder from our local welding/gas
> supplier, a single stage regulator, and even the fitting for adapting
> the regulator output to the Bernzomatic hose.
the oxygen regulator to the bernzomatic hose. Do you know supplier? Thanks.
Mike (d...@telus.net)
Can you measure the diameter and pitch of the thread you are looking for?