Semi-auto valve for under $20

[Zeus]

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.

[AircannonSweden]

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

[jackssmirkingrevenge]

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.

[Zeus]

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

[DragonAllianace]

Hi, Thanks for the guide
Where can i get the QEV? I live outside the USA
Thanks

[jackssmirkingrevenge]

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.

[DragonAllianace]

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

[jackssmirkingrevenge]

This should clear it up.

[dewey-1]

I updated the slide valve to show O-rings.
I had to "guesstimate" the locations and size!

[jackssmirkingrevenge]

That's a good guestimate, nice one

[lipecpereira]

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

[jackssmirkingrevenge]

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.

[lipecpereira]

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.

[jackssmirkingrevenge]

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

[wyz2285]

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