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Propane to NPT adapter

Post questions and info about combustion (flammable vapor) powered cannons here. This includes discussion about fuels, ratios, ignition systems, safety, and anything else relevant.
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Propane to NPT adapter

Unread postAuthor: PVC Arsenal 17 » Mon Jun 18, 2007 7:28 pm

I saw these brass adapters once that screw onto a propane tank (soldering torch kind) and have male NPT on the opposite end.

Does anyone know where to get one?
It could make for better portable air supply in my pneumatics. Screw on a tire chuck and you have a $3 air supply.
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Unread postAuthor: noname » Mon Jun 18, 2007 7:38 pm

Blowtorch propane tanks and camping ones have the same nozzle. :wink: I haven't seen those around, but if you unscrew the torch nozzle thing, there's threads. I had some random compression fitting which actually screws into those threads, and that's how my propane meter works. I think it might have been 3/16" or something.
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Unread postAuthor: Velocity » Mon Jun 18, 2007 8:02 pm

You can buy those adapters online, in many different places. They are generally pretty expensive, for not that many people use them. A lot of the spudgunning stores sell them as well. I have one too. Not only are they useful for fueling pneumatics, they are great for building propane meters as well.
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Unread postAuthor: PVC Arsenal 17 » Mon Jun 18, 2007 8:29 pm

Now thinkin about it, that's a bad idea. Propane runs at what, 900psi?

A tire chuck couldn't handle that.
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Unread postAuthor: singularity » Mon Jun 18, 2007 8:34 pm

i think you confused co2 with propane, propane is around 125psi. propane liquefies around 125psi thats why they use it in gas airsoft guns, its not to high pressure and it lasts a while because its liquid when pressurized.
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Unread postAuthor: PVC Arsenal 17 » Mon Jun 18, 2007 8:36 pm

Shows how much I know...

*furiously searches google for disposable propane thread to 1/4" male NPT adapter.
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Unread postAuthor: FreakyShotGlass » Mon Jun 18, 2007 8:45 pm

Propane only runs at like 120 - 150 psi I've got a propane tank for my pneumatics and it works perfectly. I'm gonna post a thread on my setup in the not to distant future. There is a vid of me filling one of my guns with it here.
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Unread postAuthor: Zorrowannabe9 » Mon Jun 18, 2007 9:06 pm

Well if you buy one of those really cheap ass torch heads, the tube part will screw off (its lock-tited on, so use some heat and muscle to get it off). When you get it off, it will be 1/4" compression fitting threads on one end, and the propane on the other. From their you can buy a comp to NPT adapter and your all set.
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Unread postAuthor: MisterSteve124 » Mon Jun 18, 2007 9:24 pm

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Unread postAuthor: PVC Arsenal 17 » Mon Jun 18, 2007 9:31 pm

That would be it. Thanks.
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Unread postAuthor: frankrede » Mon Jun 18, 2007 9:57 pm

I see them at camping supply stores sometimes
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