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Thad in AR. 
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Joined: 12 Sep 2009
Location: Arkansas
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 Topic: Acetylene torch questions
Posted: 29 Oct 2023 at 7:16pm |
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I recently bought a very nice like new Victor acetylene torch.
It’s the smaller one (100) I believe?
It’s missing the torch handle but has everything else.
Cutting head, rosebud, 3 welding tips hoses and gauges .
Mt question is this, do I need back flow protectors or flash back arrestees and what’s the difference?
Also looking for a torch handle to go with it.
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Codger
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Joined: 23 Dec 2020
Location: Utopia
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Posted: 29 Oct 2023 at 7:33pm |
Yes, you need the flashback arrestors. They protect YOU and are a worthy investment/requirement.
You are after what will be referred to as the "mixer". The Victor and Harris/Calorific designs have been copied for years, but the used originals can be had on Ebay and are worth rebuilding being supported well.
I have original "Smith" torches and gauges and they are prized possessions.
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That's All Folks!
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HudCo
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Location: Plymouth Utah
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Posted: 29 Oct 2023 at 8:11pm |
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i have realy no need for flashback pre venters but i do have quiki quick disconectes on all of the torches and on allthe regulators we use oxygen disconct on the argon, helium, nitrigen, gold gas, oxygen, and acyetlene disconect on the acetelene, and propane , i do alott of cutting with propane
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desertjoe
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Posted: 29 Oct 2023 at 8:20pm |
 Thad in AR. wrote:
I recently bought a very nice like new Victor acetylene torch.
It’s the smaller one (100) I believe?
It’s missing the torch handle but has everything else.
Cutting head, rosebud, 3 welding tips hoses and gauges .
Mt question is this, do I need back flow protectors or flash back arrestees and what’s the difference?
Also looking for a torch handle to go with it. |
Hey Ole Buddy,,,I think I may have the handle you looking for,,,I'll check in the morning as it is down to 31° here and light snow,,,,can't figure how I got on ole Shameless's CHIT list,,,,,? 
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steve(ill)
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Location: illinois
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Posted: 29 Oct 2023 at 9:06pm |
flash back arrestors are just that... they prevent flash back if something goes wrong... And they dont cost but a few dollars, so why not use them ? ........... also, they are required by OSHA for all Businesses.
Kind of like seat belts... You dont need them 99% of the time, but when you run into a brick wall, you wish you had it on !! 
Edited by steve(ill) - 29 Oct 2023 at 9:07pm
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Like them all, but love the "B"s.
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DMiller
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Location: Hermann, Mo
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Posted: 30 Oct 2023 at 7:24am |
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Many of the newer torch mixer heads already incorporate Back Flow preventers, my replacement torch to my antique Union Carbide set I could no longer get regulator parts for is built that way.
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Thad in AR.
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Posted: 30 Oct 2023 at 9:32am |
Codger wrote:
Yes, you need the flashback arrestors. They protect YOU and are a worthy investment/requirement.
You are after what will be referred to as the "mixer". The Victor and Harris/Calorific designs have been copied for years, but the used originals can be had on Ebay and are worth rebuilding being supported well.
I have original "Smith" torches and gauges and they are prized possessions. |
I also have a large Smith set. The gauges have nice steel covers for use on a welding truck. The oxy gauge needs rebuilt. This smaller set will be nice for everyday use.
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Codger
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Posted: 30 Oct 2023 at 9:43am |
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I'll look at the shop for the contact information of a gent I use to rebuild regulators. He is inexpensive yet very good if parts can be sourced.
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That's All Folks!
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Thad in AR.
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Posted: 31 Oct 2023 at 5:24am |
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Are back flow protectors and flash back arrestees the same thing?
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Codger
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Posted: 31 Oct 2023 at 9:26am |
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Yes they are in the application.
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Scott B
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Posted: 31 Oct 2023 at 9:58am |
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Well Thad. I was fixing to get my tanks and equipment out to start torching an old truck box that was used for feed storage. Now you've got me thinking I'm going to blow up. Definitely going to check and see if I have arrestors on the new torches/regulators i bought!
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D17 Series 1
Allis B- 1939
Allis B- 1945
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Codger
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Posted: 31 Oct 2023 at 10:15am |
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Thad in AR.
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Posted: 31 Oct 2023 at 1:54pm |
Scott B wrote:
Well Thad. I was fixing to get my tanks and equipment out to start torching an old truck box that was used for feed storage. Now you've got me thinking I'm going to blow up. Definitely going to check and see if I have arrestors on the new torches/regulators i bought! |
If you bought them new in the last few years you probably have built in
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Coke-in-MN
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Posted: 01 Nov 2023 at 8:09pm |
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I have both the Victor medium mixing chanber and the large one with cutting head only , I have been using propane as fuel for cutting for last 25 years and just accetylene for brazing work . Did buy a rosebut for the propane as the one for acceteline poped and flashed when run with propane . Was thinking of going to MAPP Gas as around here most places will not fill accetilene tanks now
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Faith isn't a jump in the dark. It is a walk in the light. Faith is not guessing; it is knowing something.
"Challenges are what make life interesting; overcoming them is what makes life meaningful."
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Tracy Martin TN
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Posted: 01 Nov 2023 at 9:13pm |
The arrestors or backflow are for when an awe  happens, if the line gets severed or burn, stop the flame from getting to the tank. Really a good thing to have. HTH Tracy
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No greater gift than healthy grandkids!
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