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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Bluetooth
- Corporal 4
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- Joined: Tue Jun 27, 2006 7:57 am
Thu Nov 30, 2006 4:12 pm
I am building a piston valve encased in a 1.5" tee. Would a .25" blowgun be enough to vent it or should i buy a .5" ball valve?
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Pete Zaria
- Corporal 5
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- Location: Near Seattle, WA
Thu Nov 30, 2006 4:25 pm
As Steve said, a blowgun will do it, but the ball valve will exhaust it faster and probably increase power a bit, but I doubt the change would be significant.
Peace,
Pete Zaria.
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Bluetooth
- Corporal 4
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Thu Nov 30, 2006 5:34 pm
Thnx. I think i'll just use the blowgun. It's easier to open (the whole gun doesn't move) and I have one.
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squeaks
- Specialist 3
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- Location: Enoch, UT(next to Cedar City)
Thu Nov 30, 2006 6:29 pm
I think now is a time you should refer to the GGDT and play around with your exhaust.
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Bluetooth
- Corporal 4
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Thu Nov 30, 2006 6:34 pm
I already tried that and it said it would work i was just making sure. One more question even though this doesn't really have to do with it:On the back of the tee should i put a normal plug with a short piston or a threaded female adapter and a cleanout plug and a longer piston?
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SpudStuff
- Sergeant 5
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Contact:
Thu Nov 30, 2006 6:49 pm
It is unlikley that the blowgun will work. The orfice of them is 1/32-1/16" on the standard ones. Get a 3/8" ball valve. Thay are easy to open and WILL increace power.
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squeaks
- Specialist 3
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- Location: Enoch, UT(next to Cedar City)
Thu Nov 30, 2006 7:03 pm
#1 If you have the ability to put an o-ring on it I would go with the normal plug with screws. If not go with a female adapter and threaded plug.(or threaded T with plug)
#2 Do not use a cleanout plug, use a pressure rated one.
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Bluetooth
- Corporal 4
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Thu Nov 30, 2006 7:20 pm
Well i'm not putting o-rings so normal plug and ill just buy the ball valve then. Thnx for your help. I plan on going to Home Depot over the weekend and building it.
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squeaks
- Specialist 3
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- Location: Enoch, UT(next to Cedar City)
Thu Nov 30, 2006 8:33 pm
No, no, no. IF YOU CAN put on o-rings, go with the normal plug and screws. Otherwise air will leak out the back and through the screw plugs. If you're not you should use a threaded plug.
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Bluetooth
- Corporal 4
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Thu Nov 30, 2006 8:40 pm
No, no, no. I'M NOT PUTTING o-rings and im still glueing the plug in, the screws are just for strength so the piston doesn't push the plug out.
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noname
- First Sergeant 4
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- Location: Bay Area, CA
Thu Nov 30, 2006 9:50 pm
Better hope you make it right, I wouldn't want to waste
$3 on a plug
$1.50 on a T
and another $7 if you have threaded bushings cemented in if the piston gets broken or something else goes wrong.
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squeaks
- Specialist 3
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- Location: Enoch, UT(next to Cedar City)
Fri Dec 01, 2006 12:12 am
$1.50 on a T!!!! Yeah right! If you can find a 2.5" or 3" T for $1.50 I'll scream the theme to Barney over the intercom. A 3" T would ring me up about $7-$10.
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noname
- First Sergeant 4
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Fri Dec 01, 2006 1:31 am
Ever read the original post?
"I am building a piston valve encased in a 1.5" tee."
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squeaks
- Specialist 3
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- Location: Enoch, UT(next to Cedar City)
Fri Dec 01, 2006 8:40 am
oh, hay, must have gotten this thread mixed up with another one. that's a good point then. 1 1/2" Tee's are cheap. Sorry for the misconception.