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Noob air cannon trigger question

Posted: Thu Dec 06, 2012 12:14 pm
by air_dannon
Hi Everyone,

I'm looking to put together a copper spud gun and understand the easy to implement pressure release valve method for a trigger device. I saw this when looking for a non-ripped-from-bike-tire Schrader valve (which I'm having a hard time locating nearby me, Home Depot-No, Ace Hardware-No, Autozone-No)? Anyway, would this work, or has anyone used this as a trigger mech on a gun? (see pic) I'm assuming here that when pressed in pressure is allowed through? Thanks

Posted: Thu Dec 06, 2012 12:58 pm
by jrrdw
Schrader valve at your local autoparts store or from McMaster-Car.

Posted: Thu Dec 06, 2012 2:26 pm
by wyz2285
How the hell can that thing operate at 250000 psi :shock:

Posted: Thu Dec 06, 2012 2:44 pm
by MrCrowley
wyz2285 wrote:How the hell can that thing operate at 250000 psi :shock:
Maybe it isn't a European site (or isn't using European notation) and the period is actually a decimal point and not a numeric separator comma :wink:
250PSI sounds more likely anyway :D

Posted: Thu Dec 06, 2012 2:58 pm
by wyz2285
Maybe it isn't a European site (or isn't using European notation) and the period is actually a decimal point and not a numeric separator comma
I don't know anywhere that's like that and I have been to China :roll: but 250 psi does make much more sense.

Posted: Thu Dec 06, 2012 3:04 pm
by MrCrowley
UK/US/Aus/NZ etc all use a period as a decimal point and not a numeric separator. Norgren is a U.S. company so it's probably safe to assume that 250.000PSI represents 250PSI and the extra three zeros after the decimal are a standard used by the Norgren website for valves/regulators/equipment that need to be accurate to one thousandth of a PSI.

I could be wrong, I'm just basing that off the information at hand :P

Posted: Thu Dec 06, 2012 6:00 pm
by jackssmirkingrevenge
Given how it opens, I don't see how this could be more effective that a ball valve.