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“NO DRILL” Sprinkler Valve Pneumatic Modification

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“NO DRILL” Sprinkler Valve Pneumatic Modification

Unread postAuthor: carlbelcher » Thu Jun 29, 2006 3:14 am

“NO DRILL” Sprinkler Valve Pneumatic Modification

Parts Required:

1. Orbit Watermaster Model 57020
2. 1/4" NPTM X 1/4" NPTM Brass Fitting (National Pipe Thread Male)

Tools Required:

1. JB Weld (recommended) or other Epoxy
2. 9/16” Socket and Ratchet (recommended) or 9/16” Wrench
3. Teflon Tape

Step 1

Remove the “Flow Control Handle” (Part A), “Bleed Screw” (Part B) and the “Solenoid” (Part C)

<a href="http://www.flickr.com/photos/carlbelcher/177538686/" title="Photo Sharing"><img src="http://static.flickr.com/78/177538686_99c0cb6781_m.jpg" width="211" height="240" alt="basevalve"></a> <a href="http://www.flickr.com/photos/carlbelcher/177538721/" title="Photo Sharing"><img src="http://static.flickr.com/71/177538721_e4c7a0c4f8_m.jpg" width="237" height="240" alt="valvedig1"></a>

Step 2

Remove the 8 Screws that hold the “Cover Assembly” (Part A) to the “Valve Body” (Part B)

<a href="http://www.flickr.com/photos/carlbelcher/177538731/" title="Photo Sharing"><img src="http://static.flickr.com/76/177538731_4c0fc27b9f_m.jpg" width="143" height="240" alt="valvedig2"></a> <a href="http://www.flickr.com/photos/carlbelcher/177538745/" title="Photo Sharing"><img src="http://static.flickr.com/55/177538745_2f756f14d9_m.jpg" width="240" height="131" alt="valvedis"></a>

Step 3

Remove the “Flow Control Stem” and the “Wire Rod” by Twisting the “Flow Control Stem” Clockwise until the stem comes loose.

<a href="http://www.flickr.com/photos/carlbelcher/177538763/" title="Photo Sharing"><img src="http://static.flickr.com/67/177538763_8c78e45a34_m.jpg" width="115" height="240" alt="valvedig3"></a> <a href="http://www.flickr.com/photos/carlbelcher/177538790/" title="Photo Sharing"><img src="http://static.flickr.com/68/177538790_dee1fb2735_m.jpg" width="240" height="194" alt="valvetop"></a>

Step 4

Mix JB Weld and fill the holes left in the “Cover Assembly” after removing the “Bleed Screw” and “Solenoid” and wait of the JB Weld to set.

<a href="http://www.flickr.com/photos/carlbelcher/177538822/" title="Photo Sharing"><img src="http://static.flickr.com/73/177538822_96dfbb3a2a_m.jpg" width="240" height="226" alt="valvebottomepoxy"></a> <a href="http://www.flickr.com/photos/carlbelcher/177538855/" title="Photo Sharing"><img src="http://static.flickr.com/65/177538855_18ecf57a6a_m.jpg" width="240" height="216" alt="valvetopepoxy"></a>

Step 5

Wrap one side of the 1/4” fitting with Teflon tape then thread the 1/4" Fitting into the hole left by the “Flow Control Stem” with the 9/16” socket. Be careful to thread the fitting as straight as possible.

<a href="http://www.flickr.com/photos/carlbelcher/177538882/" title="Photo Sharing"><img src="http://static.flickr.com/54/177538882_476e4020a7_m.jpg" width="218" height="240" alt="valvefitting"></a> <a href="http://www.flickr.com/photos/carlbelcher/177538905/" title="Photo Sharing"><img src="http://static.flickr.com/73/177538905_d8522aa946_m.jpg" width="157" height="240" alt="fittingclose"></a> <a href="http://www.flickr.com/photos/carlbelcher/177538934/" title="Photo Sharing"><img src="http://static.flickr.com/46/177538934_b251767723_m.jpg" width="240" height="232" alt="valvetopfitting"></a>

Step 6

Reassemble the valve. Mount a Blow Gun or 1/4” Ball Valve to the open end of the 1/4" fitting using Teflon tape.

<a href="http://www.flickr.com/photos/carlbelcher/177538958/" title="Photo Sharing"><img src="http://static.flickr.com/51/177538958_1f920233cb_m.jpg" width="155" height="240" alt="valvedoneblowgun"></a> <a href="http://www.flickr.com/photos/carlbelcher/177538985/" title="Photo Sharing"><img src="http://static.flickr.com/55/177538985_3373a07970_m.jpg" width="204" height="240" alt="valvedoneside"></a> <a href="http://www.flickr.com/photos/carlbelcher/177539009/" title="Photo Sharing"><img src="http://static.flickr.com/58/177539009_59bad22a14_m.jpg" width="184" height="240" alt="valvedonean"></a>

The valve is now ready to use. It can be mounted in an inline or right angle configuration, simply use the included plug and some Teflon tape to seal the unused port.
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Unread postAuthor: CS » Thu Jun 29, 2006 4:33 am

Nice tutorial! I think I can honestly "dub" that the most user freindly tutorial. Looks good, and beyond that I only have two things to say. That no tap method is just trouble waiting to happen, as we have noticed in another thread, someone jacked there threads beyond repair. Secondly if you so desire to use this method, the taping should be done without the tape, backed out, wrapped with teflon tape, then re-inserted.
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Unread postAuthor: carlbelcher » Thu Jun 29, 2006 4:53 am

First of all thanks for the kudos. Second I agree with you, I think that you should probably thread the fitting twice first without tape then again with tape. I think using a pipe tap is overkill, especially with this mod. Because of the size of the hole the fitting threads perfectly every time unless you cross thread it really bad somehow.
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Unread postAuthor: frogy » Thu Jun 29, 2006 10:44 am

I'll stick with the Orbit Watermaster 57101 because the flat top's and smaller profiles... great tutorial A++... I think pipe taps are overkill, but in that case, so are Supahs, but they both are great and help a lot... :D
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Unread postAuthor: Bluetooth » Thu Jun 29, 2006 11:00 am

Nice tutorial very well writen and i dont think anyone could get confused.
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Unread postAuthor: singularity » Wed Jul 19, 2006 11:00 pm

most of the pictures arent working on my computer, and the ones that are are really skinny.
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Unread postAuthor: Benny » Wed Jul 19, 2006 11:15 pm

That is a great tutorial, very clean and understandable with lots of pictures.... but who in hell hasn`t even got a drill?
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Unread postAuthor: carlbelcher » Thu Jul 20, 2006 5:00 am

It's not a matter of whether you have a drill of not, it's if you want to drilling a hole in a sprinkler valve or just thread in a fitting.
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Unread postAuthor: DriftingRz » Wed Jul 26, 2006 2:30 am

i aint got a drill, used to but it died, so i have the ghettoest set of tools to make a holw i usually stab a pair of scissors or something into what im working on and twist them till hole is size desired, jsut got to check alot and not go bigger then u need, yea im asking for tools this christmas when i get my car im going anti ghetto on the mods
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Unread postAuthor: Vb_happiness » Thu Jul 27, 2006 8:30 pm

I tried this method it worked but on a version of this preasure adjustable valve the neck has a 3mm lip and i found that this was not enough to hold the brass fitting on but i found a 3/4" male to a 1/2" fem conecter and it is the same size as the inner of the adjustable neck. If you want more detailed answers just ask me.
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Unread postAuthor: M3NT4L » Thu Jul 27, 2006 9:27 pm

I have found this tutorial very helpful but too bad the dont sell these valves at my local home.d
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Unread postAuthor: Vb_happiness » Mon Jul 31, 2006 12:03 am

There is equivalent products everywhere, like in Australia I havent been able to find any Watermaster products. I just looked for valves that looked similar.
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Unread postAuthor: carlbelcher » Mon Jul 31, 2006 12:10 am

I just looked for valves that looked similar.


Might this be why you had trouble with my tutorial?
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Unread postAuthor: Spyider » Mon Jul 31, 2006 12:35 am

is it cheeper to just go any buy a valve and modify it urself or better to just get one from spudtech.com ?
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Unread postAuthor: carlbelcher » Mon Jul 31, 2006 12:40 am

It's cheaper to buy a valve and modify it yourself.

spudtech.com unmodified valve $17.00 plus shipping.
Home Depot same valve $12.00 with no shipping.
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