Modding A Sprinkler Valve

Show us your pneumatic spud gun! Discuss pneumatic (compressed gas) powered potato guns and related accessories. Valve types, actuation, pipe, materials, fittings, compressors, safety, gas choices, and more.
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MrCrowley
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Thu Jun 21, 2007 5:08 am

A 5 gallon should be fine, how long what? It depends how high(PSI) you charge the compressor to, how much PSI you put in your chamber and how big your chamber's volume is. With my gun which has 2 1kg fire extinguishers as a chamber I get about 3 or 4 shots of before my compressor hits 60psi if I charge it to about 115 and regulate it at 85-ish PSI.
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spudbud101
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Thu Jun 21, 2007 5:10 am

Cool, thanks for the info. Its about 4 in the morning here, I'd better turn in.
Rawr.
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spudbud101
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Sun Jun 24, 2007 10:32 pm

Okay, I went to Lowes and their only blowgun was rated for 90 PSI. I plan on going around 120-30 PSI or so. Will it hold?

Also, can anyone give me a complete list of the parts I need for this tutorial? I want it to look exactly the same as in the last picture. I am having trouble picking out a final parts list.
Rawr.
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Flying_Salt
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Sun Jun 24, 2007 10:35 pm

The blowgun should be fine, it's just the rating of the internal parts and such. The only thing that could happen is you take it too high and mess up the seal.

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mike1010
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Wed Jun 27, 2007 1:42 am

THANKS SOOO MUCH FOR THIS. it helped so much in my sniper cannon also hi i am new to these forums but only sorta new to building cannons.
koolaid465002
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Fri Jul 06, 2007 1:02 pm

pimpmann22 wrote: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.
Hey i am new to this but with that kind of valve you can plug the hole where the solenoid is and just screw the wide end of the blow gun directly on the valve
truckbuilder
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Sun Jul 29, 2007 12:44 pm

Hi i'm new and am also wondering?. Can you use a manual sprinkler valve and just leave the screw in there or should i take it out and plug it up?
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chaos
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Sun Jul 29, 2007 7:34 pm

truckbuilder wrote:Hi i'm new and am also wondering?. Can you use a manual sprinkler valve and just leave the screw in there or should i take it out and plug it up?
i think you are refering to either the solenoid or the manual bleed valve, in my opinion i would take them out (solenoids leak slightly & manual bleed gets in the way) but if its your first time just leave them in there till you have learnt a bit more about them and how they function.
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Sat Oct 27, 2007 8:53 pm

im about to make my first pneumatic cannon and i understand how to mod the valve pretty much but i am con fused on step 6 & 7 on step six the adaptor has this thin tube on the end but then on step seven after youve threaded it in it all of a sudden has a barb on the end. Does the male barb screw into are somethin :?:
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spudgunnerwryyyyy
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Sat Oct 27, 2007 11:49 pm

You have to tap aka thread the 1/8" fitting into the top of the valve. In this instance the fitting with the thin tube was put in the drill for easier threading. You should watch the video here
http://www.bcvids.com/dload.php?action=file&file_id=3
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Sun Oct 28, 2007 4:24 pm

also does it have to be a barbed valve
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hi
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Sun Oct 28, 2007 4:35 pm

im not sure what you mean by a barbed valve, but maybe you meant a barbed hose adaptor. if you use a hose then you should, but if you just used a nipple and 3 or 4 hose clamps that would probably work to, but agai the barbed adaptor would work best.

you also dont even need to use a hose, just tap a hole and screw a blow gun in.
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Maniac
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Sun Oct 28, 2007 5:44 pm

thanks a lot exactly what i meant
Rogue
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Fri Nov 09, 2007 7:07 pm

wait so can i just attach a 9 volt to my watermater valve and it will work??

sweet



can someone tell me if i am right???


thanks,
roguE
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Fri Nov 09, 2007 9:25 pm

yes but youll need a switch for it. but thats stupid annyways this topic shows you how to mod a sprinkler valve for pneumatic use
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