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Expansion Tank

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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Expansion Tank

Unread postAuthor: miskaman » Sun Apr 13, 2008 10:10 pm

I've heard you need an expansion chamber if you want to safely use Co2 in a cannon. Is that true? Because I've seen guns with and without such chambers running on regulated Co2.
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Unread postAuthor: Gippeto » Sun Apr 13, 2008 10:24 pm

No, you do not need an expansion chamber, IF you use a regulator to reduce the pressure, OR your canon was built to handle the unregulated pressure safely.

An expansion chamber would allow a given volume of co2 (say a 12g cartridge) to expand to a lower pressure for direct use in your cannon.
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