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Balloon time helium tank

Post about things you have launched or thought about launching. Also post about various materials used for building cannons. No posts about explosive projectiles!
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Balloon time helium tank

Unread postAuthor: spikerbond » Mon Sep 06, 2010 4:33 pm

I was wondering if this tank would be safe to use: http://www.balloontime.com/display.php?section=products&page=products_largetank

it says not to refill it, but i dont see why i couldnt. i was also wondering if any of you know how much pressure this could hold.
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Unread postAuthor: clemsonguy1125 » Mon Sep 06, 2010 4:56 pm

http://www.instructables.com/id/Reusing ... lium-Tank/
I found this, make sure to coat the inside with paint to prevent rust, also dont use with high pressure.
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Unread postAuthor: Technician1002 » Mon Sep 06, 2010 6:01 pm

I have one of those. It appears to be identical to my Freon tanks. When full they deliver 14.9 cubic feet of gas, so they are shipped with the pressure of approximately 200-250 PSI.

My 2 inch air cannon is built in the Freon twin to this tank. I regularly run it at 100 PSI.

The tank does have a safety blow out disk. As far as I can tell, the disk requires over 300 PSI to fail.
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Unread postAuthor: spikerbond » Mon Sep 06, 2010 7:45 pm

thanks for you help, maybe ill be able to make a pop can launcher with this :D
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Unread postAuthor: Technician1002 » Mon Sep 06, 2010 8:23 pm

Put in a larger valve than the original. I recommend one like this;

Original;
Image

In modification;
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Can damage;
Image
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