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Author Topic: Disposable Gas Cylinder Safety question  (Read 1332 times)
SeVeNeVeS
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« on: August 28, 2015, 08:34:55 am »

Ive got 2 spent cylinders I want to use on a project.



Ive punched out the fill and exit points in the garden and they seem completely empty now.

Are they now safe to weld/ solder and drill?

Although not pretty, I'd quite like to keep my facial features in tact.

Many thanks for any advice.
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Narsil
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« Reply #1 on: August 28, 2015, 10:13:46 am »


Absolutely not. It only takes a tiny amount of fuel vapour to explode and even if it seems empty it's quite likely that there is a certain amount trapped inside.

Fuel containers should be treated with great caution the only safe way to cut them is to thoroughly flush them out and fill with water or inert gas.
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SeVeNeVeS
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« Reply #2 on: August 28, 2015, 10:52:32 am »

I did forget to mention they have been flushed with water, more than several times.

Thanks for the reply, if I dont post for a while you know why........ to the blowtorch........

........................
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Maets
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« Reply #3 on: August 28, 2015, 01:00:13 pm »

That type of cylinder can be worked on. You already have it open. Drilling or cutting with a saw should be at zero risk. With several holes in it, you can bring a torch to it and see what happens.

With holes it won't explode. Might burn but no explosion risk.

All that being said. Proceed with caution and wear protect equipment.
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Maets
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« Reply #4 on: August 28, 2015, 01:55:38 pm »

Thought I would add: In the 24 years I have been cutting open cylinders, I have had 9 close calls.  If I am a cat, then the next one is it. For the most part it was thinking they were open, but not. 

Be careful.
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SeVeNeVeS
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« Reply #5 on: August 28, 2015, 04:53:07 pm »

Risked an 'ole and chucked in a match at arms length (on a stisk).... still here to tell the tale, no flash or burn, many thanks for the advice.

Onwards we go, with eyebrows intact, still bushy and bright  Grin

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Maets
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« Reply #6 on: August 28, 2015, 04:54:36 pm »

If you suddenly stop showing up on BG we will send the fire department.  Grin

Looking forward to seeing what you do with this.
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SeVeNeVeS
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« Reply #7 on: August 28, 2015, 05:05:15 pm »

Just want to add for anyone attempting this, there is still a hell of alot of pressure and gaseous residue left after it seems empty, so, yep....... BE CAREFULL!
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GCCC
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« Reply #8 on: August 29, 2015, 12:52:30 am »

Just want to add for anyone attempting this, there is still a hell of alot of pressure and gaseous residue left after it seems empty, so, yep....... BE CAREFULL!

Sorta like me after Tex-Mex, then...
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SeVeNeVeS
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« Reply #9 on: August 29, 2015, 05:32:35 am »

Just want to add for anyone attempting this, there is still a hell of alot of pressure and gaseous residue left after it seems empty, so, yep....... BE CAREFULL!

Sorta like me after Tex-Mex, then...
Grin
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Wilhelm Smydle
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« Reply #10 on: September 14, 2015, 04:33:13 am »

With small cylinders its best to punch a hole at a distance.
.38, or larger seams to work well.
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Drew P
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« Reply #11 on: September 14, 2015, 12:51:23 pm »

Or have someone else do it for you.

 Cheesy
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