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3 way valve?

This area is for the discussion of BB or airsoft sub machine guns, and or other small arms such as pellets.
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3 way valve?

Unread postAuthor: killshot11 » Sat Jul 16, 2011 2:21 pm

I have been using the search here and looking on like google but i cant find anything on like an explanation of how a 3 way valve works or how it works with a QEV, so could somebody help me out?
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Unread postAuthor: POLAND_SPUD » Sat Jul 16, 2011 2:51 pm

here -> http://www.spudfiles.com/forums/directi ... 20438.html

read it all


here is an easy to understand diagram
Image
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Unread postAuthor: killshot11 » Sat Jul 16, 2011 5:07 pm

so is the green part of that diagram the 3 way? and is there a QEV in there?
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Unread postAuthor: POLAND_SPUD » Sat Jul 16, 2011 5:12 pm

hat's the part directly attached to the 3 way valve... you know the one that looks exactly like a QEV and works in the same way... :lol:

EdIT
ok sry no need to be a d###
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Last edited by POLAND_SPUD on Sat Jul 16, 2011 5:18 pm, edited 1 time in total.
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Unread postAuthor: killshot11 » Sat Jul 16, 2011 5:15 pm

sorry man, im new to this
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Unread postAuthor: killshot11 » Sat Jul 16, 2011 5:46 pm

so would i be able to use any of these ? http://www.mcmaster.com/#directional-ai ... es/=d7fwa6
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Unread postAuthor: Gun Freak » Sat Jul 16, 2011 5:48 pm

A 3 way has three ports. A-inlet, B-pilot and C-exhaust. Basically, when air is connected, air goes from A to B. When you push the valve, air goes from B to C.
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Unread postAuthor: killshot11 » Sat Jul 16, 2011 5:55 pm

ok so i understand how they work now, but should i attempt to build one or buy one? Because, and correct me if i'm wrong, i have heard the rod is a pain to make, but store bought ones don't hold as much pressure.
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Unread postAuthor: POLAND_SPUD » Sat Jul 16, 2011 5:57 pm

so would i be able to use any of these ? http://www.mcmaster.com/#directional-ai ... es/=d7fwa6
yeah, though check ebay - you can get one for just 10$ or so

as gun freak has pointed out a 3 way valve is just a valve that has 3 ports... you can use it to fill something (an air cylinder a chamber etc.) and then vent it

you'd have to use two 2 way valves (for example a blowgun or ball valve) to acheive the same result
ok so i understand how they work now, but should i attempt to build one or buy one?
it's up to you - IMO it's cheaper to buy one
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Unread postAuthor: killshot11 » Sat Jul 16, 2011 6:01 pm

Thanks poland, seriously helped me out a lot
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Unread postAuthor: killshot11 » Sat Jul 16, 2011 6:09 pm

one more question, if i were running at like 120 psi, using this set up, do you know how much fps i would get?
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Unread postAuthor: Gun Freak » Sat Jul 16, 2011 6:28 pm

How long is a piece of string?
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Unread postAuthor: killshot11 » Sat Jul 16, 2011 6:46 pm

Gun Freak wrote:How long is a piece of string?


What?
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Unread postAuthor: Gun Freak » Sat Jul 16, 2011 6:48 pm

It means your question is impossible to answer 8)
That is, without providing more info.
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Last edited by Gun Freak on Sat Jul 16, 2011 6:48 pm, edited 1 time in total.
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Unread postAuthor: killshot11 » Sat Jul 16, 2011 6:48 pm

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