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Shrader valve pressure limit

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Shrader valve pressure limit

Unread postAuthor: -1 » Tue Jul 11, 2006 12:37 am

Hi everybody.

Does anyone know how much pressure a schrader valve can take before breaking? I am planning to use one with a small pneumatic spud gun to be pumped up by a regular bike pump.

Thanks.
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Unread postAuthor: Torch » Tue Jul 11, 2006 12:43 am

Depends on brand/type/etc I think. The one im going to use for my gun is metal and can hold 225 psi, I saw a normal rubber one in the auto store and can only hold 100 psi.
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Unread postAuthor: -1 » Tue Jul 11, 2006 12:48 am

Yeah i want to get to around 200, i'll make sure to get a metal one then.

Probably be very hard going over 100 psi with a bike pump.
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Unread postAuthor: Benny » Tue Jul 11, 2006 4:18 am

Actually, ive taken one of the rubber ones to 300 psi.
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Unread postAuthor: frogy » Tue Jul 11, 2006 11:42 am

I've saw a rubber HP snap-in that could take 300 psi...

And the metal tank valve can take 300psi

And don't fill a PVC gun to 200psi, mainly not because of the PVC, but because sprinkler valves can't take 200psi, and ball valves are too hard to turn with just 100psi, yet alone 200psi.....
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Unread postAuthor: benstern » Tue Jul 11, 2006 12:50 pm

The maximum that actual valve can handel is 500 psi.
But you mostly want to find the max psi of the valve stem.
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Unread postAuthor: -1 » Tue Jul 11, 2006 9:18 pm

Heh i'm gonna pump it to 200 psi anyway. :D
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Unread postAuthor: MrCrowley » Tue Jul 11, 2006 9:42 pm

how long would it take to hand/foot pump a chamber 100mm diameter 700mm long?
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Unread postAuthor: carlbelcher » Tue Jul 11, 2006 9:46 pm

You can buy schrader valves that are rated up to 3000psi on mcmaster.
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