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Bolt High Pressure

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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Bolt High Pressure

Unread postAuthor: Petitlu » Fri Jan 06, 2012 3:34 pm

Hello!
I have just made this tight bolt head, it is very solid, it resists 2200psi:

Image

Image

test:

60bar / 870psi

[youtube]http://www.youtube.com/watch?v=Yx59eI-aTrg[/youtube]

150bar / 2200psi

[youtube]http://www.youtube.com/watch?v=gbLn_raWkMI[/youtube]


after all these tests the cylinder head does not have anything !

I will test until 4500psi ! :D
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Unread postAuthor: POLAND_SPUD » Fri Jan 06, 2012 5:20 pm

cool
but you should use water or some other liquid to pressure test stuff
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Unread postAuthor: Petitlu » Fri Jan 06, 2012 5:32 pm

yes it is a good idea!
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Unread postAuthor: ramses » Fri Jan 06, 2012 10:13 pm

Definitely fill the system to be tested with water next time. Unless you were trying to create a spectacular failure if it were to fail.

That said, great job on the breech! What are you using for your pressure source?
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Unread postAuthor: Petitlu » Sat Jan 07, 2012 3:36 am

thank !
I test with water too, because sometimes a system can be liquid-tight but not air

I use a bottle of carbon high pressure (4500psi) of 7 liters to pressurize.

During the test there were only 2200psi in it so I stopped at this pressure.

Just before manometer I have a leaking valve, I must also repair ... :(

I will do the test at 4500 psi next week :D
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Unread postAuthor: jakethebeast » Sat Jan 07, 2012 6:00 am

Nice work on the breech! You se pretty confident about your work, that pressure is pretty high :D
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Unread postAuthor: Petitlu » Sat Jan 07, 2012 7:32 am

thank you
I intend to do a breech for my PAC "Elurick" that pulls in 3000psi
This one is a prototype, I test the maximum strength

http://www.spudfiles.com/forums/pac-120 ... rt,90.html
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