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Dual (two stage) refrigerator compressor?

Post questions and info about pneumatic (compressed gas) powered cannons here. This includes discussion about valves, pipe types, compressors, alternate gas setups, and anything else relevant.
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Unread postAuthor: MrCrowley » Thu Dec 01, 2011 6:21 pm

Nice work! Thanks for the information about your trials with the two-stage fridge compressor setup, have been thinking of doing something similar for some time but, like POLAND_SPUD said, it's difficult finding cheap, large, high pressure vessels.
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Unread postAuthor: Gun Freak » Thu Dec 01, 2011 6:26 pm

I'm so trying this with my fridgy. Mine is only 1/20 HP so it needs some help.
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Unread postAuthor: al-xg » Thu Dec 01, 2011 6:37 pm

CO2 fire extinguishers are rated way past what fridge compressors can produce, that can be found in reasonably large sizes too.
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Unread postAuthor: jackssmirkingrevenge » Thu Dec 01, 2011 8:48 pm

al-xg wrote:CO2 fire extinguishers are rated way past what fridge compressors can produce, that can be found in reasonably large sizes too.


Hear hear.

Also be on the lookout for one of these:

Image

The smaller tank is usually highly rated, I have a 3 litre one rated to 4500 psi from one of these things.
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Unread postAuthor: MrCrowley » Thu Dec 01, 2011 8:50 pm

al-xg wrote:CO2 fire extinguishers are rated way past what fridge compressors can produce, that can be found in reasonably large sizes too.
I've yet to find one for cheap yet, all the ones on auction sites are generally full are go for over $100. We have an old one on the side of our house, might just nick it and see if my dad notices :D
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