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Threaded schrader valves

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: spanerman » Sat May 05, 2007 8:18 am

ive been using the rubber ones on my copper QEV...and i just teasted it to 250psi and the rubber tore leaving one half of the valve in the gun and the other half the other side of my garden so only use the rubber car types under 10bar;)
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Unread postAuthor: chaos » Sat May 05, 2007 8:40 am

yer lol i always seem to look at the pressure ratings after something fails :roll:

i looked at the website of the manufacturer and said

"for use under 60 pounds per square inch"

i had it at 260psi and it nearly went through my hand :shock: (it missed though)

it didn't though so just be warned if your using the rubber pop in valves without reinforcement (epoxy ect)
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Unread postAuthor: spanerman » Sat May 05, 2007 8:43 am

TBH it was stupid and i wouldent even trust them with epoxy;) im getting some metal ones in the next week
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Unread postAuthor: mark.f » Sat May 05, 2007 9:05 am

Nobody's ever thought of simply shaving them down a little and clamping in a 1/2" compression nut? 8) :wink:

<img src="http://i10.photobucket.com/albums/a123/markfh11q/stairstepper.jpg">
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Unread postAuthor: spanerman » Sat May 05, 2007 9:10 am

its a pitty 1/2ich compresion fittings are like hens teethe in the uk:(
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Unread postAuthor: mark.f » Sun May 06, 2007 6:08 am

No worry. Just measure the closest size to it, (1/2" = ~12.5-13mm), and use the same principle.
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Unread postAuthor: cash68 » Sun May 06, 2007 1:17 pm

I got mine at autozone for $2.99
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Unread postAuthor: cork9 » Wed May 09, 2007 6:49 pm

i got my from mcmaser for like 5 bucks. threaded.
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Unread postAuthor: frankrede » Wed May 09, 2007 7:00 pm

cork9 wrote:i got my from mcmaser for like 5 bucks. threaded.

You were ripped off.
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Unread postAuthor: jssizzle » Wed May 09, 2007 7:03 pm

cork9 wrote:i got my from mcmaser for like 5 bucks. threaded.


I just bought on off mcmaster and it was $1.93.
That seems a little more reasonable.
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Unread postAuthor: cork9 » Wed May 09, 2007 7:05 pm

ya i dont know i forgot long time ago
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