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Home made 3way valve

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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Home made 3way valve

Unread postAuthor: Crna Legija » Sun Jul 11, 2010 7:31 am

Its not done yet i need to get 3 O-rings and fille in two more groves in the nuts, ill try go to bunnings tomorrow. The tees are 1/2'' i used 3 nuts and a peace of all thread for the rod.

i should have gone with 3/8 because this thing is massive, its bigger than the 3/4'' valve its going to pilot :lol:
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3way2.jpg
with the rod in side
3way1.jpg
rod out side
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Unread postAuthor: POLAND_SPUD » Sun Jul 11, 2010 7:46 am

so far it looks pretty good
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Unread postAuthor: MRR » Sun Jul 11, 2010 9:06 am

It definitely looks good but lets see how it performs under high pressure conditions. Are you planning to use Locktight or something on the nuts when it's finished?

Another idea would be to squeeze a rubber gasket between two nuts and two washers, put the all thread into a drillig machine and grind the gasket down with a piece of sandpaper till it fits perfectly into the 1/2" nipples.

Overall it is a good idea to use a threaded piece of rod. The way I built my 3-way was a p.i.t.a. :)
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Unread postAuthor: POLAND_SPUD » Sun Jul 11, 2010 9:25 am

or you can use a threaded rod to build a spool... you just need a few metal washers and some nuts... I've never tested thi but I guess it should work fine
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Unread postAuthor: inonickname » Sun Jul 11, 2010 9:55 am

If you want a smaller, sleeker one you know who to call :D

I like it..but it's a little big.
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Unread postAuthor: Gun Freak » Sun Jul 11, 2010 12:42 pm

Yeah it's pretty bulky, but it gets'er done :wink: Good job.
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Unread postAuthor: Crna Legija » Wed Jul 14, 2010 5:51 am

i whet to bunnings today and they don't have any orings the would fit, tomorrow ill try to squish a bit of rubber in between two nuts like MMR said.

i was gonna put epoxy in place of locktight because that stuff it a rip off at bunnings.

i would get you to machine a sleek one but i got a new job and they are teaching me how to use the lathe and mill, so hopefully they let me make some cool stuff. i only work on fridays its like work expenince but for a hole year aka vcal (victorian c.unts are lazy)

thanks for the kind words.
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Unread postAuthor: qwerty » Wed Jul 14, 2010 9:43 am

Arghh they look awsome but i still don't understand how they fully work.
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Unread postAuthor: Crna Legija » Thu Jul 15, 2010 12:48 am

its not that hard
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Attachments
naamloosxl.png
in that pic the valve it filling the gun. but if you push the nut across a bit the first tee is sealed and the second opens up piloting the gun
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