Calor gas

[Boustrophedon]

I have a great big tank full of really cheap butane and yet here I am buying camping stuff at over a fiver a tin. So the obvious question is; how do I get the calor gas into the loco?

[Big Jim]

Freeze, slice and stuff in in lumps?
You could probably make up an adaptor but you may waste more than you use.
(Halfords have 4 tins for a fiver at the moment)

[Chris Cairns]

There are some details of an adaptor for the 4.5kg gas bottle on the 16mmngm Yahoo Group (attached here).

Suggest you get in touch with Keith Bucklitch for more details (contact details on the 16mm NGM DVD).

I use the camping gas canisters with an asian converter for EN417 fittings - B & M currently selling 4 for £3:99.

Chris Cairns

Edit - appears we can no longer attach PDF files here?

[Boustrophedon]

Thanks. Looks like I will have to make one.

[daan]

Keep in mind that the pressure of a big tank could be a bit higher than in a tin. At work we have pressurised gas in cylinders over 200bar. I doubt that the little gascontainers in a roundhouse can handle such pressure.. I presume your butane cylinder isn't at that pressure, but maybe a pressure regulator and some sort of manometer could be usefull?

[Boustrophedon]

Keep in mind that the pressure of a big tank could be a bit higher than in a tin. At work we have pressurised gas in cylinders over 200bar. I doubt that the little gascontainers in a roundhouse can handle such pressure.. I presume your butane cylinder isn't at that pressure, but maybe a pressure regulator and some sort of manometer could be usefull?

No. The pressure is entirely due to the vapour pressure of the liquified gas and will be the same. Butane and Propane will both liquefy under pressure (at room temperature), unlike say oxygen, ethane or methane which can only be stored as a compressed gas at room temperature.

[daan]

Sounds logic as how you tell it, Boustrophedon, I was having the 200 bar pressurised gas-cylinders in mind at my work.. Thanks for rectifying..