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help attaching a shrader vlave

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: Lard Lad » Mon Dec 17, 2007 11:32 pm

i found a replacement tire valve at the car parts store. its not one of thoes rubber pull through ones, its a metal one that clamps down on a rubber washer. would i be abble to tap a hole in the end cap and put this through or would it weaken the cap. I have seen it done this way in other projects, i just dont thing the nut and thereads plus the washer would be l;ong enough to po through a double layer of pvc, also where would i go about getting a 1/4 in threaded shrader valve or a 1/8.
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Unread postAuthor: BigGrib » Tue Dec 18, 2007 12:13 am

if you are doing it in an end cap you can probably get away with a single layer in the curved end of the end cap if ya know what i mean thats how i do for my pnuematics
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Yea, that's definitely going to get you at least a tazer.

<a href="http://www.youtube.com/watch?v=AkMkGOpAF4s">DONT TAZE ME BRO.. DONT TAZE ME... AHHHH</a>
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Unread postAuthor: Lard Lad » Sat Dec 22, 2007 12:52 am

i've got a shrader valve similar if not identical to the one here
[url]http://www.napaonline.com/MasterPages/NOLMaster.aspx?
PageId=470&LineCode=NTH&PartNumber=90252&Description=Tire+Valve[/url][/code]
would i be abble to drill a hole in a regular pvc end cap and just tighten this vale in? The thing im not sure about in the round part on the bottom that the o ring rubber sealing thing sits on would be to wide to fit inside the pvc and seal properly. So would i be abble to attach this to the end cap without compromising its structural integrity? i have seen a couple of other projects with this kind of a set up. Also does anyone know where to get a 1/4 in threaded shrader valve? and don't say bc arms, their website isn't secure.
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Unread postAuthor: Lard Lad » Sat Dec 22, 2007 12:56 am

oh ok thanks, so puting the valve in thae cap isnt going to make thae cap structurally unstable, so if i do this it isnt not going to explode and kill me because i put the valve thrugh a single layer of pvc. also what sized hole should i dril for this valve, shoud i just try different drill bits untill one fits?
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Unread postAuthor: Zippster » Sat Dec 22, 2007 11:23 pm

I dont see what's so hard about this.
Most fittings save those exotic ones have inter-compatible threads, which is a godsend with all these gauges and what-not. All my cannons have both a gauge and a schrader usually on a tee at the rear of the chamber. Screws right in, and no fuss after that. And for the schrader valve, I use those little rubber ones then hose-clamp them down over a 3/8" barb. Works great, and if you tighten it enough you have nothin to worry about.
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