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SpudFiles Forum Index » General Spud Cannon Related » A new/different sprinkler design. Need help!
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Spencer
PostPosted: 06/19/2005 20:35 PM    Post subject: A new/different sprinkler design. Need help! Reply with quote

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Joined: 27 Apr 2005
Posts: 25
83.90 Spud Bux
Ok here are some pictures of the valve.

The valve:
http://img158.echo.cx/my.php?image=saircannon0018lb.jpg

Shows where I copped the flow control thingy off.
http://img158.echo.cx/my.php?image=saircannon0021uy.jpg

Now I will start taking the valve apart peice by peice.

This is with just the top removed, you can see the metal peice that keeps the spring centered.
http://img158.echo.cx/my.php?image=saircannon0049zo.jpg

With the metal peice off you can see the diaphragm:
http://img158.echo.cx/my.php?image=saircannon0053pi.jpg

Diaphragm removed:
http://img158.echo.cx/my.php?image=saircannon0061km.jpg

That plastic ring peice removed. You can see the top of the "door" and the hinge it moves on:
http://img158.echo.cx/my.php?image=saircannon0073sx.jpg

The "door" lifted all the way up on the hinge. You can see the straight through flow path here.
http://img158.echo.cx/my.php?image=saircannon0080ss.jpg

View from where the chamber screws in (door closed):
http://img158.echo.cx/my.php?image=saircannon0101td.jpg

Same view with the door open:
http://img158.echo.cx/my.php?image=saircannon0120ik.jpg

BTW the pilot area presurizes through the little filter looking thing that you could see on the top of the last two pictures(but it's kinda fuzzy).

The valve next to the 1" rainbird I will use to actuate it.
http://img158.echo.cx/my.php?image=saircannon0114mn.jpg

More pictues after some of my modification"
http://img240.echo.cx/my.php?image=10004428jv.jpg
http://img240.echo.cx/my.php?image=10004432le.jpg
http://img240.echo.cx/my.php?image=10004445tv.jpg

You can see that it is quite different than a traditional sprinkler valve eh?
Well, the cannon is done but the valve isnt working. When I use a 12v compressor to fill it up, air escapes under or beside the valve or something, bottom line is- the air immediately exits out of the outlet. Can anyone figure out why? My only idea is that not enough pressure can build up above the door to keep it down and hold in the main pressure from the chamber, does this sound likely? If so, could I just put in a quick disconnect past the ball valve and pressurize through that? What size quick disconnect would fit a 12v compressor?
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spudshot
PostPosted: 06/20/2005 7:51 AM    Post subject: Reply with quote

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not enough pressure, or something is in the diaphragm, not allowing it to close, such as PVC dust
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Spencer
PostPosted: 06/20/2005 8:50 AM    Post subject: Reply with quote

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I checked for any obstructions and gave it a good washing out so thats not the problem. I know nothing about quick disconnects so how would I go about connecting to a 12v emergency compressor with one?
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spudshot
PostPosted: 06/21/2005 16:49 PM    Post subject: Reply with quote

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with quick disconnects? just use a schrader valve if thats what you're filling from
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Spencer
PostPosted: 06/21/2005 18:50 PM    Post subject: Reply with quote

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Well you cant very well put a schrader valve after the blowgun you are using to exhaust now can you. Schraders are 1 way valves. Anyways that valve was just not meant to be, it cracked while I was tightening it so I am temporarily just using a 2" ball valve, I know some of you are probably having a heart attack reading this but it really does still give good performance. A warning for all you people who might be looking for 2" sprinklers-Do not try and use an Irritrol Ultraflow.

PS tomorrow is my birthday woohoo
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spudshot
PostPosted: 06/22/2005 4:34 AM    Post subject: Reply with quote

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are you trying to fill from the blowgun exhaust??? because thats not gonna work
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Spencer
PostPosted: 06/22/2005 20:34 PM    Post subject: Reply with quote

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Well not anymore but it is possible, it has been done.
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