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Thread: Oxy Acytelene Welding
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15-04-2008, 09:47 PM #1
Oxy Acytelene Welding
Hello Guys,
I have a question concerning the selection of the oxy acytelene kit
I am using the above procedure for welding Copper pipes Type L according to ASTMB88-96 my problem is that I don't know which weding tip size should I select as my copper pipe diameter is 21/8'' and how should I select the tip.
could i use a double tip or one is enough?
If any body can provide me with a guide for the tip selection or even give me the selection or a supplier or anything concerning this issue I would be very grateful.
Thank you in advance and best regards
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15-04-2008, 10:26 PM #2
Re: Oxy Acytelene Welding
Alright
http://www.twi.co.uk/j32k/protected/band_3/jk3.html
This is helpfullIf it ain't broke, it doesn't have enough features yet.
Damo
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15-04-2008, 10:35 PM #3
Re: Oxy Acytelene Welding
Hi Hipposs,
I used to find using a size 18 nozzle worked for me on 2.1/8" tube, but then I only had four sizes, No.3 for small stuff, No.7 for medium, No.13 for big, and No.18 for bigger sizes. It worked for me, but I haven't done upward of 2.1/8" for a few years and cant remember what size nozzle I used for 4.1/8". I'm sure someone else will be able to shed some light.
Regards, Andy C.
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15-04-2008, 10:42 PM #4
Re: Oxy Acytelene Welding
For those pipe sizes you will nee the largest nozzle you can find.
Personally, I favour THIS type, commonly known as "shower-heads". The have 7 or more orifices built in to the tip, giving lots of heat over a wide area.
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15-04-2008, 10:44 PM #5
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15-04-2008, 10:46 PM #6
Re: Oxy Acytelene Welding
"A loved child have many names"
(Chinese proverb)
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15-04-2008, 10:52 PM #7
Re: Oxy Acytelene Welding
That link i posted up top,is that chart any good?
If it ain't broke, it doesn't have enough features yet.
Damo
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15-04-2008, 11:11 PM #8
Re: Oxy Acytelene Welding
I have used tips similar to those described by The Viking. Thed do cover a large area with a large flame, but you still have to move the tip around to evenly heat larger pipes. And be careful with the oxygen settings. You do not want a cutting torch!
My best advice is to heat the pipe uniformly all the way to the depth of the fitting socket and not get in a big hurry. Large pipes take time to braze well.Last edited by US Iceman; 15-04-2008 at 11:12 PM. Reason: editing
If all else fails, ask for help.
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15-04-2008, 11:16 PM #9
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Re: Oxy Acytelene Welding
I dont know there, but here I have nozzles marked
0,5-1
1-2
2-4
6-9
9-14
14-20
and I using 6-9 and 9-14 for 54mm CU pipes.
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15-04-2008, 11:40 PM #10
Re: Oxy Acytelene Welding
Since getting a pepperpot burner i've used nothing else (except a mapp gas blow lamp on small stuff) Every oxyacc set should have one, great for compressor changes etc.
Years ago i did some 3 1/8 pipe but for that we just drilled out a nozzle to get a bigger flame....don't try this!Last edited by monkey spanners; 15-04-2008 at 11:41 PM. Reason: smilies etc gone w*nky
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16-04-2008, 07:13 AM #11
Re: Oxy Acytelene Welding
Or this ones at the bottom of the pages http://www.mir.be/NL/catalogue.php?cid=11
It's better to keep your mouth shut and give the impression that you're stupid than to open it and remove all doubt.
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16-04-2008, 12:12 PM #12
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16-04-2008, 07:46 PM #13
Re: Oxy Acytelene Welding
thanks guys your posts have been of a great help for me
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17-04-2008, 10:17 AM #14
Re: Oxy Acytelene Welding
Citb Brazing Recomend Pepperpots
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