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4" To 1" PVC

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4" To 1" PVC

Unread postAuthor: SteamRoller » Sat Apr 01, 2006 11:13 pm

I have 4 feet of 4" PVC in my garage that i would like to use for a pneumatic gun but i need to get it down to a 1" sprinkler valve. What's the best and cheapest way to go about this?
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Unread postAuthor: iamthewalrus » Sat Apr 01, 2006 11:19 pm

prolly jsut get a reducer from 4 to as small as u can get, maybe 1 even, and then put a reducer from that down to 1, then put on ur valve, then barrel. thats how i would do it.
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Unread postAuthor: Shrimphead » Sat Apr 01, 2006 11:22 pm

A sprinkler valve would create a bottleneck coming from a 4" chamber. Try making a piston gun actuated by a sprinkler valve.
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Unread postAuthor: SpudStuff » Sat Apr 01, 2006 11:43 pm

try not to use sprinkler valves they restrict flow greatly
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Unread postAuthor: boilingleadbath » Sun Apr 02, 2006 2:40 am

coupler - 4"/2" reducing bushing - 2"/1" reducing bushing - 1" male adapter

...or just make the chamber 2" diameter, and save yourself quite a bit of money.
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Unread postAuthor: Shrimphead » Sun Apr 02, 2006 10:46 am

He said that he already has the 4" pipe.
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Unread postAuthor: saladtossser » Sun Apr 02, 2006 11:40 am

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Unread postAuthor: iamthewalrus » Sun Apr 02, 2006 12:02 pm

Shrimphead, i think BLB ment he would save a lot of money on bushings, 4in-anything isnt cheap.
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Unread postAuthor: Shrimphead » Sun Apr 02, 2006 1:07 pm

Ya I know, but then he would have to also buy the 2" pipe.
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Unread postAuthor: SteamRoller » Sun Apr 02, 2006 3:20 pm

Thanks SaladTosser but i don't have a lathe anymore. I'm making this with a friend but neither of us really understand how to make a piston. I've seen lots of diagrams and what not but i'm very hands on so i can't really visualize how most things work, i have to make it first. We do have a length of 2" and 1 1/2" but he bought the 4" and wants to use it.
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