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Is it necessary to epoxy the solenoid hole?

Post questions and info about pneumatic (compressed gas) powered cannons here. This includes discussion about valves, pipe types, compressors, alternate gas setups, and anything else relevant.
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Is it necessary to epoxy the solenoid hole?

Unread postAuthor: Team PSU » Wed Mar 18, 2009 6:53 pm

Is it necessary to epoxy the solenoid hole after you've done the air gun mod to a sprinkler valve? I just completed this today and simply screwed the solenoid back into place hoping that would seal it, but is this not the case?

Thank you in advance everyone!
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Unread postAuthor: jmeyer1022 » Wed Mar 18, 2009 6:54 pm

you can leave the solenoid in but its bulky the seal isn't as good, I'd strongly recommend epoxy.
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Unread postAuthor: le_rufus » Wed Mar 18, 2009 7:11 pm

Alternatively you can pour some some pvc cement into the solenoids hole let it dry for an hour then top it off and let it dry over night. It's not as permanent as epoxy but it seals it off pretty well.
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Unread postAuthor: covey12 » Wed Mar 18, 2009 8:02 pm

i just used hot glue, surprisingly it works very good
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Unread postAuthor: chrissilvermancs » Wed Mar 18, 2009 11:32 pm

i never took out the silinoide after i modded my sprinkler valve and i go to 110 all the time no problems

i disagree with who ever said its not as good of a seel when in fact all it dose is cover the hole and if i leaked like he implied the sprinkler valve would open.

http://www.spudfiles.com/forums/3-barre ... 17645.html
mine
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Unread postAuthor: mark.f » Wed Mar 18, 2009 11:35 pm

Of course you can leave the solenoid in. If you want to lessen the valve's profile, though, you should remove it and seal the hole with some sort of implement.
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Unread postAuthor: Team PSU » Thu Mar 19, 2009 12:10 am

Ok, when I connected my CO2 bottle to my cannon the sprinkler valve wouldn't seal? and the gas was rushing out and actually pushing the ball out of the end of the barrel?
Could this just be an improperly seated diaphragm?
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Unread postAuthor: mark.f » Thu Mar 19, 2009 12:17 am

How much flow does your CO<sub>2</sub> connection have?

I hate to ask, but is it regulated?

Also, did you check for chips of plastic in the valve body?

Just my musings...
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Unread postAuthor: chrissilvermancs » Thu Mar 19, 2009 12:18 am

what psi are u doing it at because they are still sprinkler valves im pretty sure there rated at 80 or 90 i go 110 but thats because i use it as an exposed but my friend has ripped it before so i mean high pressure could be your problem
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Unread postAuthor: Team PSU » Thu Mar 19, 2009 12:36 am

Yes, we have a palmer pursuit stabilizer mounted to the end of the CO2 bottle and according to the guage it's putting out around 100-110...
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Unread postAuthor: starman » Thu Mar 19, 2009 3:57 am

You could always leave it in and have dual triggering capability, pneumatic and electrical...never know, there could be an application for such a beast.
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Unread postAuthor: Team PSU » Thu Mar 19, 2009 4:43 pm

Alright, I got it figured out... apparently I didnt have the solenoid screwed in tight enough AND we had a hose barb connected to about a 3ft hose then to the airgun... After tightening the solenoid and then shortening the hose to about 6" the gun fires real nice.
But of course after getting about 5 actual shot, our CO2 was empty b/c of all the testing we've done. Haha figures.

Thanks for the help
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