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Need some help explaining the Sprinkler Valve!

Posted: Sun Mar 30, 2008 1:19 pm
by tay1392
Hello everyone, I am a pneumatic noob so take it easy. anyway, here is what I am thinking right now but im not sure if it's correct, please help me!!!


I dont fully understand how this whole modified sprinkler valve works. so you pressurize your chamber to a certain PSI depending on size...

then you give the blowgun on the modded Sprinkler Valve a squeeze and it opens the valve which then lets the air behind the projectile pushing it out at a high velocity? :o

Posted: Sun Mar 30, 2008 1:19 pm
by elitesniper
yes, then you learn to search. :)

Posted: Sun Mar 30, 2008 3:12 pm
by fireman565
Try looking around a bit before diving off into making a pneumatic cannon. Know what you're getting into before spending $$ into a cannon you may not want. :wink:

Posted: Sun Mar 30, 2008 3:19 pm
by STHORNE
fireman565 wrote:Try looking around a bit before diving off into making a pneumatic cannon. Know what you're getting into before spending $$ into a cannon you may not want. :wink:
lighten up on him. he's got the right idea. and besides, I'm sure he's going to do a bit more researching before he gets around to actually building the gun.

Posted: Sun Mar 30, 2008 3:31 pm
by fireman565
sthorne...

I'm not hammering on him, :o I'm trying to point him in a right direction and tell him to plan it out before he spends $$ on parts he may not need. I'm talking from experience, I've done that before when I was just starting. I'll be the first to help him out, which I thought that's what I was doing. I wasn't trying to be a smartass and beat on him like alot in here would do.

Dude, I even posted a 'clue' for him. By all means, I'm glad he's here. 5000+ members all throwing ideas at each other.... what could be better. :lol:

EDIT: He may even do as I did and decide not to use a sprinkler valve for the main valve like I did. I came in here thinking I was going to build a simple cannon using a chamber, sprinkler valve, and barrel. After reading for a week or so, I decided to build a piston valve instead, using my sprinkler valve as the pilot. That's what I was tring to get across.

Posted: Sun Mar 30, 2008 3:33 pm
by STHORNE
ok...kinda sounded like you were raging on him..and i thought you were being a smart ass with the "clue" but as long as you are innocently helping him, ill leave you to your work

Posted: Sun Mar 30, 2008 3:41 pm
by fireman565
Let me tell you this, I would never come in here and rag on a someone trying to learn this hobby. I get tired of people here who build one cannon, post 200 times, and think they know everything... :D Its funny as hell. I'll see someone make a post hammerin' some dude in here, look at his post count being 800! Then, a day later, that same 800 count poster will be asking some simple question that's been answered over and over again.... :D

So no, I wasn't ragging him, and thanks for standing up for him too. :) Its nice to know some people are watching out.

Posted: Sun Mar 30, 2008 4:31 pm
by koolaidman
This explains sprinklers- http://www.spudtech.com/content.asp?id=21. Guys, there will always be noob questions and posting in dead topics just relax.

Posted: Sun Mar 30, 2008 5:00 pm
by tay1392
well thanks for the responses guys, and yes I really expected some criticism suggesting to search first. I am no noob to forums, just to the hobby.

you know I would try a Piston, but it seems like there is a lot of place for error when making one of those, I looked at MrCrowley's tutorial and I didn't fully understand the "deodorant Can" piston". So I figured I'd just use a ball valve, but after a bit of researching valves on spudwiki, turns out that ball valves open way too slow.

but again I appreciate your guys's input, and thanks for stickin up for me sthorne

Posted: Sun Mar 30, 2008 11:06 pm
by fireman565
tay1392 wrote:...you know I would try a Piston, but it seems like there is a lot of place for error when making one of those, I looked at MrCrowley's tutorial and I didn't fully understand the "deodorant Can" piston". So I figured I'd just use a ball valve, but after a bit of researching valves on spudwiki, turns out that ball valves open way too slow.
Piston valves are pretty simple to build. You may have already seen this post, but it explains piston valves. If or whenever you decide to build one, start with a 2" tee housing or smaller. I started with a 3" tee. Not all that easy to find something for the piston without having to just make one out of epoxy or hot glue. The sprinkler valve mods are not that difficult to do either. Its way faster than a ball valve.

Posted: Sun Mar 30, 2008 11:15 pm
by jook13
modding a sprinkler valve may seem intimadating at first, but once you open it up and look inside it, its easy to figure out how it works and where to put the blow gun.

Posted: Sun Mar 30, 2008 11:29 pm
by tay1392
hey thanks again guys. I really appreciate your input. pretty soon here I will sketch up some plans for my first pneumatic and post them. I am sick and tired of the basic combustion that works 1//4 of the time.

Posted: Sun Mar 30, 2008 11:35 pm
by MrCrowley
tay1392 wrote:you know I would try a Piston, but it seems like there is a lot of place for error when making one of those, I looked at MrCrowley's tutorial and I didn't fully understand the "deodorant Can" piston". So I figured I'd just use a ball valve, but after a bit of researching valves on spudwiki, turns out that ball valves open way too slow.
Feel free to PM me with any Q's :)

Yeah I upgraded the ball valve to sprinkler valve, they're just expensive in NZ so I had to get some more cash first :wink:

The deodorant can piston, is just a method of building a piston for 2" piston valves. It's no different from a normal barrel sealer, I just try and teach you how to make a piston from a deodorant can.

They can also be used on co-axial piston vavles too.

Again, any Q's just ask