Using R-134a To purg lines?

[Xeon th MG Pony]

I was thinking of why not use R-134a to purg lines while brazing? it's abondant fairly cheap, some what inert.


lol realisticly I'm thing it's ideal to purg the whole loop with though for when de-brazing stufe off the compressore.

[Jort]

serious? its a refrigerant..

burning it is not good for your health afaik:)

[Unknown_road]

r134a isn't inert. it burns, so it's isn't a good idea (reaction product of it is very bad for your health)

[Xeon th MG Pony]

I know, I guess my humer is that fare off.

All refrigerants tend to mealt the lungs when burnt, though R-134a takes ALOTE of heat to burn FYI. But for what I seriously was planning to do with it was to use it when evacing the compresser.

[Unknown_road]

I know, I guess my humer is that fare off.

All refrigerants tend to mealt the lungs when burnt, though R-134a takes ALOTE of heat to burn FYI. But for what I seriously was planning to do with it was to use it when evacing the compresser.

your torch will provide more then enough heat for r134a to burn FYI, believe me I found it out myself. My troath was soar for few hours.

in your start post you say you want to use it for de-brazing and now for evacuating your system... offcourse you can use it for evacuating your system although it is less efficient as dry nitrogen.

[Xeon th MG Pony]

Well I was hoping the fact it was oxygen devoid would allow me to get away with debrazing without any issue's but now that I think about it ya it will autocombust the second the old brazing stufe was blowen out, the line purging while brazing was a joke though

[runmc]

We take PhaseChange with complete seriousness. There are people here who are learning and might try one of your suggestions. Please save your jokes for the chat forums.

[Xeon th MG Pony]

well it was a question and a joke in one, I had a good idea it wouldn't work but wanted a second opinion.

I gues I keep forgeting this isn't a real industry type forum, sorry I'm not used to forums with a high level of beginners so I'll try and keep them type of Q/Js to my self.

[Gray Mole]

I just saw this post and I've got to get out to the workshop to finish up some stuff, but couldn't leve this one alone.

The level of safety and adherence to both guidelines of safety and legal issues has been very questionable lately, but this is beyond the 'flammable gas' purging question.

knowingly venting refrigerants is illegal. Purging with a refrigerant gas is knowingly venting so is NOT legal. That's bad enough.

But most refrigerant gasses when heated to extremes will produce toxic/poisonous fumes. The damage can range from asphyxiation to lung damage to poisonous death.

This goes well beyond the legal or ethical standpoint to risking yours or someone elses life if they even consider doing it.

Common safe purging gasses...

Nitrogen, CO2, Argon.

Flammable purging gasses ONLY to be used by qualified, experienced welding tech's...

Propane, Butane.

This is by no means a full list, but if you're even considering purging with a 'questionable' purging gas, or using a refrigerant, DON'T. It likely isn't legal, and might just kill you.

And on a side note, please think twice about talking seriously about dangerous practices or illegal/unethical practices on this forum. It's bringing bad press here, and inspiring the more impressionable noobs to phase to hurt themselves trying it.

Cheers

Gray

[Xeon th MG Pony]

Ah but the law here says long as it is in an air duster can it is legal, so one must remember that each country laws are diferant. But I do Understand what you are saying, and after some good ol hind sight I realized it was a rather stupid idea, but rather then deleating my post I'll bear my mistake, and let others see it was a bad idea.

[{.bLanK} GoD]

I heard burning refrigerant and/or refrigerant oil produces a type of musturd gas. I may be wrong.

[Xeon th MG Pony]

No you are perfectly correct, it decomposes into a substace sort of like phosgene, a very nasty and very deadly choking agaent, some thing to be scared of at the best of times.

When I asked that I wasn't thinking about the stored heat when the gas hit oxygen. like I said it was a mind numbed inspired question.

[Unknown_road]

well it was a question and a joke in one, I had a good idea it wouldn't work but wanted a second opinion.

I gues I keep forgeting this isn't a real industry type forum, sorry I'm not used to forums with a high level of beginners so I'll try and keep them type of Q/Js to my self.

why the additude? you ask a question, we answer and you say you already knew it and it was a joke?? no you didn't knew it, I can clearly see that from your posts afterwards. It's no shame if you don't know something right away and could have thought of yourself but please relax a little.

you should make jokes about dangerous things on a industrial type forum either because it is all public.

[Xeon th MG Pony]

well I should have knowen beter thats why, This may not be my main trade but I've studied hard at it, and I realy let the ball drop, I kinda had a feeling there was a reason it wouldn't work but just wasn't to shure why not. but now you guys pointed out and it seemed so clear on hind sight. Yes I'm hard on my self, it's kept me alive thus fare.


And to be totaly honest I am kinda embarased about missing why it wouldn't work, can we please let this disapear?