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Semi-auto valve for under $20

Come find a how-to on how to do something, or come write your own for other people.
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Unread postAuthor: Zeus » Thu Sep 27, 2012 5:17 pm

Not at all, my 1/8" slide valve is always smooth as silk, and pilots the 1/4" QEV perfectly.

I'm quite impressed with the power too, h
andles an 8mm ID 1m barrel without a problem, and that's with a small chamber.
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/sarcasm, /hyperbole
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Unread postAuthor: AircannonSweden » Fri Sep 28, 2012 2:15 am

Zeus wrote:Not at all, my 1/8" slide valve is always smooth as silk, and pilots the 1/4" QEV perfectly.

I'm quite impressed with the power too, h
andles an 8mm ID 1m barrel without a problem, and that's with a small chamber.


Okey, thanks :)
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As always,have a nice day - FPSrussia
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Unread postAuthor: jackssmirkingrevenge » Fri Sep 28, 2012 2:36 am

Zeus wrote:Not at all, my 1/8" slide valve is always smooth as silk, and pilots the 1/4" QEV perfectly.


What I do find is that they get a bit "sticky" if left unused for some time, but once you move it once it goes back to being smooth.
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Unread postAuthor: Zeus » Fri Sep 28, 2012 3:22 am

Considering I got it last week, it hasn't had a chance to get sticky. But rubber tends to do that all the time.

I'm very impressed with the QEV too, almost as good as my diaphram valves
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/sarcasm, /hyperbole
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Unread postAuthor: DragonAllianace » Mon Oct 15, 2012 7:01 am

Hi, Thanks for the guide
Where can i get the QEV? I live outside the USA
Thanks
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Unread postAuthor: jackssmirkingrevenge » Mon Oct 15, 2012 7:35 am

DragonAllianace wrote:Where can i get the QEV? I live outside the USA


This one and many others on eBay ships worldwide:

http://www.ebay.com/itm/1pcs-QE-02-Pneu ... 1e71b908b0

eBay is the best place to get them cheap. Unfortunately this is not an item you would find stocked in most ironmongeries/hardware stores.
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Unread postAuthor: DragonAllianace » Mon Oct 15, 2012 3:54 pm

Thanks.
I really suck at this, so excuse me if i didnt read the guide fully, How does it work? I mean how could i setup it up? If you could tell me i would greatly thank it
And where did the air go on the video, to the can or just outside the QEV?
Thanks in advance
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Unread postAuthor: jackssmirkingrevenge » Mon Oct 15, 2012 11:54 pm

This should clear it up.
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Unread postAuthor: dewey-1 » Fri Feb 01, 2013 12:41 pm

I updated the slide valve to show O-rings.
I had to "guesstimate" the locations and size! :)
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Unread postAuthor: jackssmirkingrevenge » Sat Feb 02, 2013 1:30 pm

That's a good guestimate, nice one :)
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Unread postAuthor: lipecpereira » Sat Feb 16, 2013 12:24 am

I'm trying to build the system with full auto pop off valve, but air leaks from the nipple. Instead of delrin, pvc I used because I do not have delrin (where can I buy it or find it?). Must have a small hole in the disk? Sorry for the mistakes of English. Haha I'm Brazilian and new in the forum
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Unread postAuthor: jackssmirkingrevenge » Sat Feb 16, 2013 5:39 am

Show us some pictures :) I found that mine leaked without a rubber seal on the front of the piston, never bothered adding it though as it was just a proof of concept thing.
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Unread postAuthor: lipecpereira » Sun Feb 17, 2013 3:04 pm

my QEV is a QE-01. I had to enlarge the hole to put the pop off valve. pvc used instead of delrin with a very soft spring. I tested with a old refrigerator compressor through who apparently does a lot of pressure. But leaked air in nipple. I will take pictures.
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Unread postAuthor: jackssmirkingrevenge » Tue May 14, 2013 10:27 am

Lookie what the postman brought in :)

For those of you who think slide valves are not "trigger like" enough, I bought a couple of rather smart poppet style three way valves, each for under $10 posted from eBay.

Will give them a whirl and let you all know what they're like :)
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Unread postAuthor: wyz2285 » Tue May 14, 2013 4:25 pm

Probably leak pass 200 psi, or even less, or not.
MAY contain plastic parts
(my experience).
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