Where to find check valves?

[acs2997]

Hello all,
I'm trying to find small check valves that I can put into a 2" piston, but everywhereive gone, the check valves are larger than my actual piston.

Does anyone know where I can find small check valves?

[jackssmirkingrevenge]

[acs2997]

Where would I find something like that? That's pretty much exactly what I need. Wait, isn't that the valve used on bikes? Maybe I'm wrong but that's what's used on racing bikes

[jackssmirkingrevenge]

http://www.ebay.com/itm/New-Bicycle-Inn ... 2ebe06915a

[acs2997]

Thanks! Yeah, my friends dad does a lot of cycling, I'm sure I can get one from him. Thanks, I never would've thought to use one of those.

[jackssmirkingrevenge]

You could also use a schrader instead of a presta, but because of its internal spring you will have significantly lower pressure in the chamber than in the pilot (assuming you want this for an o-ringed piston).

[acs2997]

Yeah, I'll probably go with the presta. How fast will it beagle to fill up e air chamber? Will it significantly restrict how fast it fills? I'm trying to make a semiauto gun, and I want the rate of fire as high as possible

[jackssmirkingrevenge]

How fast will it beagle to fill up e air chamber? Will it significantly restrict how fast it fills?

Pretty fast

[youtube][/youtube]

Depends on the size of your chamber, a largish one might take a couple of seconds to fully pressurise.

[acs2997]

I'm only shhooting paintballs, I'm not Punkin Chuckin here. The air chamber is about a foot and a half of 2" pvc. Thnk thats a god size?

Btw, I love the video

[Brian the brain]

God size would be slightly bigger.

A rubber flap over a tiny hole will work as a checkvalve.
Assuming the sealing face will be made outof a sheet of rubber...all you would need is a tiny hole on the side, between the seat diameter and the outside.

have the rubber sheet cover the entire front of the piston....and drill...

[mark.f]

If your piston is o-ringed (and actually seals in the carriage), you probably don't want a completely airtight check valve too. Leaving it charged, a small leak in the pilot could reduce pilot pressure enough to fire accidentally.

Clide (a user on these forums) made check valves using a male-female adapter and plug, a small spring, and an airsoft bb for this exact purpose.

[acs2997]

Is that in his slider?

[mark.f]

No, it's the Straight Through Valve (inline piston valve). But he used them on a lot of his barrel sealers.

[acs2997]

Alright. I'll play around with it a little bit, I'll see what works and what doesn't. Thanks for the input, I've had an experience with accidental firings, not exactly the best day in my life