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Schrader in Australia?

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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Schrader in Australia?

Unread postAuthor: flex180 » Sat Nov 07, 2009 2:53 am

Does anyone have any idea where i can buy a schrader valve in australia? and also.....how do i install it? thanks heapps
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Unread postAuthor: jmadden91 » Sat Nov 07, 2009 3:30 am

They're everywhere mate. I buy them from supercheap, or I go to tire places and they generally give them to me for free (ask for a tubeless tire valve). I just chopped one off an old bike tyre as well. The threaded ones are hard to find.

I just epoxy them in usually, but for my high pressure gun I stripped the rubber off and soldered it into a male quick connect
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Unread postAuthor: flex180 » Sat Nov 07, 2009 3:31 am

the threaded ones are the ones im after... how would i install an un-threaded one to a pneumatic spudgun?

EDIT: oops sorry didnt read the whole thing properly.... would epoxy be alright for a gun going no higher than say 120 psi?
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Unread postAuthor: jmadden91 » Sat Nov 07, 2009 3:37 am

Sure would. There are other ways to though mate, have a look around the showcase and see how people have attached them. I haven't been able to find any threaded schraders in Aus.

Often the rubber ones have sort of a rubber bulb at the end, if you leave that on as well as epoxy you shouldn't have any problems
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Unread postAuthor: flex180 » Sat Nov 07, 2009 3:38 am

thanks for the help, one last question, when you installed your valves with epoxy, did you drill the hole, then push the in from the outside and epoxy around them or do it form the inside out?
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Unread postAuthor: jmadden91 » Sat Nov 07, 2009 3:41 am

No worries mate, From the inside out. That way the bulb at the end will help hold it in so theoretically, it can't come out.
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Unread postAuthor: flex180 » Sat Nov 07, 2009 3:43 am

what if the fill valve is at the end of a chamber that is like, 80cm long and 40mm pvc?
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Unread postAuthor: jmadden91 » Sat Nov 07, 2009 3:51 am

Lol I put it in before its glued up. Make sure it goes through at least two layers of PVC btw. I would suggest you chop the end cap off your chamber, get a new one, drill a hole in it, insert your fill valve from the inside out, epoxy it in place, and then glue the new one on your chamber. You would lose 50mm tops
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Unread postAuthor: flex180 » Sat Nov 07, 2009 3:54 am

haha yeah i know that... but my 2 layers comprise of, 40mm pvc and an endcap, how do i put it through both without them being stuck together?
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Unread postAuthor: jmadden91 » Sat Nov 07, 2009 3:56 am

ha yeh good point, on my pvc one its just through the end cap. Its thicker than the 40mm pipe at least :?
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Unread postAuthor: flex180 » Sat Nov 07, 2009 3:57 am

hmmm, has it ever blown up, and what psi did you take it to?
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Unread postAuthor: jmadden91 » Sat Nov 07, 2009 4:13 am

Only around 60psi, my pump was useless and I scrapped the gun before I got a new one. Have a look though the showcase and see what everyone else does mate.

I reckon you should strip the rubber off one and solder it into a male fitting. That way you will have a threaded schrader, that you can tap into your cannon without chopping it. I did it with here, and the solder has held ~250psi so far.

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Unread postAuthor: flex180 » Sat Nov 07, 2009 5:06 am

I will look around the showcase, thanks for help and patience mate
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Unread postAuthor: Pookydarts » Sat Nov 07, 2009 6:02 am

Hey Flex, as above, it's all good. Tubeless schrader valves just pull straight through a hole drilled in a class 18 end cap. I've never used epoxy with them and never had any trouble with leaks, the more pressure, the tighter they seal! Make sure you measure the stem and drill the hole a LOT smaller than the measurement, as they will start to extrude as the pressure increases, pretty much the smallest hole you can get it to go through, with lube. (...No JSR...)
I've had them over 175psi and they look funny, but haven't failed on me yet, for 200 psi + go for the threaded option, ask around the tire shops that cater to the farmers and their tractors. I got given a handful a few months ago, all really difficult to find the taps for though. :?
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Unread postAuthor: flex180 » Sat Nov 07, 2009 7:25 pm

Ok, i kinda understand, but not completely, have u got any pics that you could show me?
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