Disposable Gas Cylinders

[rabu]

Hi I have a few Disposable gas cylinders (1 propane 2 MAPP), the type that go on the Rothenberger super fire 2 and other blowtorchs. Does anyone know of the best place to get rid of them? thanks.

 

[ColJack]

empty or full?

 

[rabu]

Empty.

 

[cornishwizard]

I put my unwanted full ones on the bonfire, I never saw them again
empty ones go in the rubbish bin

 

[Paul Barker]

I only use the propane one and rather fancy making an adapter to fill it from a bigger bottle. They must only contain about 25p worth of gas.

Never liked MAP gas.

 

[Stivino]

Your local recycling centre should have a place for gas bottles.

 

[muggles]

I only use the propane one and rather fancy making an adapter to fill it from a bigger bottle. They must only contain about 25p worth of gas.

Never liked MAP gas.

Well they say on the side non-refillable, so it'll be interesting to see how you get on with that, presumably some sort of pressure regulator would be required between large and small bottles. If you do it, post in the CC to let us know how!!

 

[Paul Barker]

You could measure the pressure in a new one, T a guage on the connecting tube open the donor bottle just a crack and shut it when the pressure guage is up to pressure. The guage would show pressure in the receiving bottle and the umbilical which is the same.. Then wehn you undo the umbilical the propane will be held by the automatic valve.

 

[neds]

Hmm doubt it will be worth refilling old bottles really and they are at high pressure not like your regular Butane lighter refill bottles!

I prefer MAP much more economical, gets hotter quicker but if you're not careful can easily lose control. The propane gives you more control. the MAP can also help you dispel small amounts of water in the pipe.

 

[muggles]

You could measure the pressure in a new one, T a guage on the connecting tube open the donor bottle just a crack and shut it when the pressure guage is up to pressure. The guage would show pressure in the receiving bottle and the umbilical which is the same.. Then wehn you undo the umbilical the propane will be held by the automatic valve.

Sounds simples.... but remember the thread on the top of the torch bottle isn't BSP, it's a finer pitch than that (I think), finding something to fit could be slightly tricky.

 

[hammerswinger]

Sounds simples.... but remember the thread on the top of the torch bottle isn't BSP, it's a finer pitch than that (I think), finding something to fit could be slightly tricky.

This the adaptor you need to fill the bottles that fit the Rothenberger super fire 2.....Thinking of getting one of these myself.

http://cgi.ebay.co.uk/ws/eBayISAPI.dll?ViewItem&item=350315064549&ssPageName=STRK:MEWAX:IT


Here's a video of the adaptor in action:

http://www.youtube.com/watch?v=CG5uUq1tNek&NR=1



Cheers.

 

[muggles]

Ideal, now all we need is a bulk supplier of MAPP.......

 

[Paul Barker]

Thanks I've ordered one.

 

[neds]

I suppose you could get a few refills out of them so not a bad idea. I'd be just a tad bit wary about how the valves would hold up in the cylinders after a few refills.

 

[hammerswinger]

I have an adaptor for my Rothenberger super fire 2 torch so I can use Primus or Calor 340 cylinder on it but exchanging these cylinders is now quite expensive, to exchange a Calor 340 cylinder costs £5.75, the cylinder contains 340 grams of gas, hence its name.

1 litre of LPG weighs approx 500 grams.

So when you consider that 1 litre of LPG for a car at a fuel station is £0.60p it shows how much we are being ripped off with calor or any other cylinder exchange.


Cheers.