Lpg torch

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Lpg torch

Postby Nathan02 » Tue Jun 26, 2018 6:59 am

Hi guys,
Curious to weather someone may be able to point me in the direction of a good lpg torch for 9kg bottle?

Regards
Nathan
Last edited by Nathan02 on Tue Jun 26, 2018 7:00 am, edited 1 time in total.
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Re: Lpg torch

Postby woodduck » Tue Jun 26, 2018 7:46 am

I was in Bunnings yesterday and it looks like they have a new range of trade flame gear in. Doesn't look overy cheap but it's something that will last a long time.
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Re: Lpg torch

Postby Nathan02 » Tue Jun 26, 2018 7:47 am

Thanks wood duck. Will this cut the mustard on brazing 4"?
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Re: Lpg torch

Postby woodduck » Tue Jun 26, 2018 8:16 am

Only soft solder mate and hard soldering 1/4" for easy flanges :handgestures-thumbupleft:
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Re: Lpg torch

Postby woodduck » Tue Jun 26, 2018 8:28 am

I should expand on that for ya sorry. I built my 6" rig with an lpg torch so it will handle it. Ive got 2 tips though, one about 25mm for biger stuff like 6" and ennealing stuff if I need to flatten pipe for plates etc and one that is about 10-15mm for smaller more controlled work like less than 4". All soft solder though.

Hope that helps
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Re: Lpg torch

Postby Nathan02 » Tue Jun 26, 2018 8:30 am

yep thought so mate cheers. Will go with the oxy. Bloody keen to get this bubbler moving along! all modules cut, and perf plates made, starting to get into the nitty gritty with the PC and RC build and soldering up the downcomers.
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Re: Lpg torch

Postby warramungas » Tue Jun 26, 2018 8:35 am

Pics please! We're all big fans of a little copper porn!
:text-worthless:
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Re: Lpg torch

Postby Nathan02 » Tue Jun 26, 2018 9:21 am

hey warra im a picture posting noob! How would I go about doing so? Would also be great for gaining advice from you fellas that have tackled numerous builds before if something doesn't look right
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Re: Lpg torch

Postby woodduck » Tue Jun 26, 2018 12:41 pm

woodduck
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Re: Lpg torch

Postby YarraRanges » Tue Jun 26, 2018 12:49 pm

If you want to go oxy you can buy an oxygen gas bottle now from most engineering suppliers. When it's empty you just take back and swap it for a full one and just pay for the oxygen. Its a lot cheaper than renting a bottle from BOC at $120 or more per year.
Rather than going acetylene you can go LP gas. It's a lot cheaper and will do hard brazing no problems. Once again you can get the regulator from most engineering suppliers.
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Re: Lpg torch

Postby woodduck » Tue Jun 26, 2018 1:07 pm

Any particular reason you want to go hard solder?
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Re: Lpg torch

Postby bluc » Tue Jun 26, 2018 2:29 pm

Bunnings also do oxy/acetylene bottle swap setup. I brazed but its not needed. I sat modules on a gas bbq and helped it along with a mapp gas torch 5% solder. Was a pain in the ass in places like rc where there is a lot of copper in a small space which acts like a heatsink, and long sections like pc .

I ended up buying a torch like woodduck linked to and used that along with the map torch and it worked better than bbq burner.. :-B
Last edited by bluc on Tue Jun 26, 2018 2:29 pm, edited 1 time in total.
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Re: Lpg torch

Postby Nathan02 » Tue Jun 26, 2018 2:57 pm

Hey woodduck I just find that silver solder flows easier and you dont have to stuff around fluxing and cleaning joins
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Re: Lpg torch

Postby woodduck » Tue Jun 26, 2018 5:03 pm

Fair enough mate :handgestures-thumbupleft: I've found the opposite myself but I guess it's what ya used to.
Enjoy the build, I look forward to it
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Re: Lpg torch

Postby coffe addict » Wed Jun 27, 2018 8:17 am

I have an LPG torch from bunnings and was able to hard silver solder the 4in column I made. I had to be out of the wind and exercised some patience on heat up but even the rc wasn't too difficult.
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