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| PCGUY |
 Posted: 02/26/2005 22:23 PM Post subject: Modding A Sprinkler Valve |
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Evil Admin
Joined: 18 Aug 2004
Posts: 1571
5270.34 Spud Bux
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MODDING A SPRINKLER VALVE
Instructional Video!!
Provided By- BCVids.com
Buy a Pre-Modded Valve!
Image Tutorial Below
Provided By - Tim Brown
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Additional notes:
If your now obsolete solenoid is getting in the way you may simply scrap it, however you must fill both small holes in the solenoid port with epoxy. |
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Step 6: Cutting your hose
Your next step is to cut your hose to the desired length. I have chosen to use 1/4" id by 1/2" of air hose. This is available at Mcmaster.com
After you cut your hose to the desired length you will want to insert one end into the barbed adaptor on your valve cover and the other end into a 1/4" male adaptor. Secure both ends of hose with hose clamps. Next, cover the threads of your male adaptor in Teflon tape and thread it into a blowgun rated for at least 100 PSI. You are now all set to start using your souped up sprinkler valve. Enjoy, and as always, Keep it safe… |
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| Once your adaptor has been threaded into your cover you may replace all parts inside your valve and screw the cover back down. |
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Step 5: Threading in your fitting and putting it all back together
You will want to wrap the threaded end in Teflon tap before screwing it into your valve. If you are going to be using the same adaptor that you used to tap the hole, you will also want to cover that in Teflon tap and thread it back in. Once you have threaded your fitting back into the valve cover it should look like this:
Once your adaptor has been threaded into your cover you may replace all parts inside your valve and screw the cover back down. |
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You now want to insert the hose adaptor into your drill chuck like this:
Now slowly and as straight at possible spin your adaptor into the hole. Once you have gone almost all the way, about 1/16” of threads still showing, stop. Remove the adaptor from the drill chuck and then remove the adaptor with a crescent wrench. |
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Step 4: Tapping the hole
Now that your hole has been drilled you are ready to tap it for your fitting. If you are using a pipe tap simply tap the hole and move on to step 5. However if you don't have a pipe tap and are going to be threading the hole with your fitting you will need a drill and a 1/4" male barbed hose adaptor. |
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| This is what the top of your valve should look like after drilling the hole. |
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Step 3: Drilling hole in cover
Once you have removed your cover you need to drill a hole in the center of it. You will thread a 1/4" barbed hose adaptor into this hole. You can either use a 1/4" NPT pipe tap or you can simply drill a 1/2" hole and thread it with your fitting. Make sure that the hole will not be in the way of the spring. If your valve has a guide rod, drill to the side of the cover but make sure that it isn't in the way of anything. If you plan to use a 1/4" pipe tap, instead of the 1/2" hole, drill whatever size your tap recommends. |
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Step 1: Buying the correct valve
The first thing that must be done in order to soup up a sprinkler valve is to buy the valve. There is one major thing to consider when buying a valve, does it or doesn't it have a guide rod? A guide rod is a small metal bar inside the valve that guides the diaphragm. I have found two different valves that don't have guide rods and are very simple to work with and soup up. The first valve is a Rainbird 1” inline automatic sprinkler valve. The second valve, the one pictured below and through out this how to, is a Watermaster 3/4" inline automatic sprinkler valve. |
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Last edited by PCGUY on 07/29/2006 0:08 AM; edited 2 times in total |
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| CS |
| Posted: 07/29/2005 15:10 PM Post subject: |
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Donating Moderator
Joined: 18 Feb 2005
Posts: 1876
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This vavle should work shouldnt it? Second can you drill your hole for the air fitting somewhere besides the center because if i do the spring on the inside wont have any where to sit.
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| fisherron |
| Posted: 08/14/2005 17:54 PM Post subject: |
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Joined: 14 Aug 2005
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Hi pimpmann
From what ive found this model of valve doesnt release fast enough.What i ended up using is the Rain bird Apas-075
hope this helps
buhyah
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| fenderfrk10 |
| Posted: 08/30/2005 18:47 PM Post subject: |
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Joined: 30 Aug 2005
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i was just wondering...
i don't quite understand how the blowgun trigger moves the diaphragm. i was wondering if you could clarify that for me?
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| spudshot |
| Posted: 08/30/2005 19:01 PM Post subject: |
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Joined: 03 Oct 2004
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| there is pressurized air on both sides of the diaphragm, using the blowgun you exhaust the air on top of the phragm, so there is no pressure above, and your chamber volume is still pushing from below, that pushes the phragm up and allows the air go to to the barrel
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| drac |
| Posted: 08/30/2005 19:03 PM Post subject: |
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Metalhead Moderator
Joined: 24 Apr 2005
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Hmmm, how to explain without getting complicated. A sprinkler valve works on the property of pressure diferences. When you fill the gun, the air goes through an equalization hole in the diaphragm, and keeps it seated. The area that keeps the diaphragm down is called the pilot area. The solenoid vent the pilot, but not nearly as fast as possible. So by putting the blowgun there, you exhuast the pilot faster, and that means the valve open faster. If you need any help, you can im me on AOL or MSN.
EDIT: Spudshot beat me. 
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| fenderfrk10 |
| Posted: 08/31/2005 7:40 AM Post subject: |
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Joined: 30 Aug 2005
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thanks guys. i'm going to home depot today to get it
EDIT: unfortunately not one of my hardware stores carry it. this is going to be an adventure
NOTE FROM SPUDSHOT: please edit your posts instead of double posting
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| boom_o_matic |
| Posted: 09/01/2005 18:08 PM Post subject: |
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Private First Class
Joined: 01 Jul 2005
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| I havent been able to find the valve at any hardware store. What isle at Lowes should I look in. I know it is not in the pipe area, so where should I look?
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| sergeantspud2 |
| Posted: 09/01/2005 20:52 PM Post subject: |
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Captain
Joined: 07 Jun 2005
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| saladtossser |
| Posted: 09/01/2005 21:11 PM Post subject: |
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SpudZilla
Joined: 26 Mar 2005
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| nope, right beside plumbing, called irrigation
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| CS |
| Posted: 09/01/2005 21:59 PM Post subject: |
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Donating Moderator
Joined: 18 Feb 2005
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| Why dont you just ask someone at the store?
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| CaptPIKel |
| Posted: 09/10/2005 20:22 PM Post subject: |
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Private
Joined: 06 Sep 2005
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| How big of a difference is there in a modded sprinker valve and a normal solenoid one? I'm going to keep using the solenoid though. I much prefer an electric fire.
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| saladtossser |
| Posted: 09/10/2005 20:26 PM Post subject: |
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SpudZilla
Joined: 26 Mar 2005
Posts: 1236
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| 10x faster, but u can keep both triggers, if u do it right, the solenoid doesnt bother you at all.
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| boilingleadbath |
| Posted: 09/10/2005 22:08 PM Post subject: |
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Joined: 12 Mar 2005
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| Is the number acctualy "10x"? I'm not so sure of that number, but I'd like to check - what is the flow provided by one of those solinoid valves?
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| kevl12377 |
| Posted: 09/19/2005 10:34 AM Post subject: |
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| Will this make my seloniod valve stop makeing that really loud noise like an airhorn?
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