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Blowing into a sprinkler valve

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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Blowing into a sprinkler valve

Unread postAuthor: Petrie » Wed Dec 20, 2006 2:29 pm

I just got my first sprinkler vavle for my birthday and i tried blowing into it and it wont hold air
is that a problem?? If so how can i fix it? If not whay does it do this??

~petrie
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Unread postAuthor: pyromanic13 » Wed Dec 20, 2006 2:40 pm

no, not a problem... yyou just can't generate enough pressure (you probebly can get 1/2 psi)
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Unread postAuthor: noname » Wed Dec 20, 2006 5:46 pm

Your lungs can produce about 5 psi, at least 20 is required for the valve to equalize and seal.
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Unread postAuthor: jrrdw » Wed Dec 20, 2006 6:26 pm

Lubricate the diaphram before you start useing it.
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Unread postAuthor: Petrie » Wed Dec 20, 2006 10:48 pm

thanks I was pretty worried there for a second
you guys have been a great help

~Petrie
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Unread postAuthor: pyromanic13 » Thu Dec 21, 2006 2:43 pm

noname wrote:Your lungs can produce about 5 psi, at least 20 is required for the valve to equalize and seal.


thats surprises me because I cant imagine blowing a 3 lb thing into the air.
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Unread postAuthor: noname » Thu Dec 21, 2006 6:42 pm

Psi: pounds per square inch
Goddamn, why the hell am I even answering this?
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Unread postAuthor: Bluetooth » Thu Dec 21, 2006 6:48 pm

I kinda agree about that noname :lol: ! Where did you get the idea that it means you could blow a three pound object into the air??? With a pneumatic pumped to 100 psi could you shoot a 100 pound person into the air? No.
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Unread postAuthor: iknowmy3tables » Thu Dec 21, 2006 7:14 pm

I geuss I could move it an inch in the air if the weights were on a frictionless 1x1 square piston that I was blowing into.
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Unread postAuthor: pyromanic13 » Thu Dec 21, 2006 11:31 pm

noname wrote:Psi: pounds per square inch
Goddamn, why the hell am I even answering this?


why did you think I don't know what psi means?
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Unread postAuthor: noname » Fri Dec 22, 2006 12:10 am

pyromanic13 wrote:thats surprises me because I cant imagine blowing a 3 lb thing into the air.


Evidently you have no idea what you're talking about.
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Unread postAuthor: pyromanic13 » Fri Dec 22, 2006 9:57 pm

ok, this is how I'm imagining it... a one inch pipe with a one inch metal rod that weighs 3 lb in it. I can't imagine blowing into it and haveing the rod lift.

Evidently we are thinking of two different examples.

now can you stop being an asshole, and tell me why the fork you think I'm so stupid?
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Unread postAuthor: noname » Fri Dec 22, 2006 10:45 pm

Psi and pounds are completely different. Pounds per square inch refers to the weight on each square inch of something. If you inflate your lungs all the way and keep breathing in more and more air little by little, the air in your lungs can be compressed up to around 5 psi. This does not in any way mean you can blow a 5 pound object into the air.
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Unread postAuthor: pyromanic13 » Sat Dec 23, 2006 12:35 am

why does that matter? the thread is about how much pressure you can push out into the valve... whatever I don't care any more, you were just being aggresive for no reason.
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Unread postAuthor: noname » Sat Dec 23, 2006 12:43 pm

Well excuse me, did you not say that if I could produce 3 psi, I could blow a 3 pound object into the air?
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