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first piston valve

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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first piston valve

Unread postAuthor: cannon monkey » Sat May 30, 2009 2:23 pm

all metal using an old c02 tank hot gule piston leaks a little need help
would hot glue fix the leak for low pressure 20 to 100 psi
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Unread postAuthor: hi » Sat May 30, 2009 3:46 pm

Please take the time and effort to give a detailed description of what you problem is. Then maybe I will take the time to help you because as of right now I have no clue what you are asking about.
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"physics, gravity, and law enforcement are the only things that prevent me from operating at my full potential" - not sure, but i like the quote

you know you are not an engineer if you have to remind yourself "left loosy righty tighty"
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Unread postAuthor: MountainousDew » Sat May 30, 2009 3:53 pm

hi wrote:Please take the time and effort to give a detailed description of what you problem is. Then maybe I will take the time to help you because as of right now I have no clue what you are asking about.


Yeah, if you would, try to give us the best description you can, and we will give you the best answer we can...

But from the info, you have either given or the info I understand, hot glue is not the option you should take. Hot glue may hold fine at 20 psi, but at 100 it will have already shot off. Try epoxy putty, since it's like clay, you can use it on any leak you may have, and it will most definitely have no problem at 100 psi... Right?

Edit: Spelling

Edit, again: Check out Biopyro's new topic, it may help you, too!
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<a href="http://s709.photobucket.com/albums/ww95/JKazkid/?action=view&current=MDSig.jpg" target="_blank"><img src="http://i709.photobucket.com/albums/ww95/JKazkid/MDSig.jpg" border="0" alt="Photobucket"></a>
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Unread postAuthor: cannon monkey » Sat May 30, 2009 5:09 pm

<a href="http://s119.photobucket.com/albums/o124/monkey083192/?action=view&current=102_2737.jpg" target="_blank"><img src="http://i119.photobucket.com/albums/o124/monkey083192/102_2737.jpg" border="0" alt="full view"></a>
full view black tank is the cannon blue/green one is what i use to fill it

<a href="http://s119.photobucket.com/albums/o124/monkey083192/?action=view&current=102_2739.jpg" target="_blank"><img src="http://i119.photobucket.com/albums/o124/monkey083192/102_2739.jpg" border="0" alt="side view"></a>
side view

<a href="http://s119.photobucket.com/albums/o124/monkey083192/?action=view&current=102_2740.jpg" target="_blank"><img src="http://i119.photobucket.com/albums/o124/monkey083192/102_2740.jpg" border="0" alt="outside2"></a>
top view

<a href="http://s119.photobucket.com/albums/o124/monkey083192/?action=view&current=102_2744.jpg" target="_blank"><img src="http://i119.photobucket.com/albums/o124/monkey083192/102_2744.jpg" border="0" alt="inside2"></a>
best i could get of the piston inside the tee

i post this in showcase once i get damage shots
( no barrel yet)
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Unread postAuthor: Biopyro » Sat May 30, 2009 5:35 pm

So you're saying that the piston is not sealing against the barrel port?

To take close up pictures, press the little flower on your camera, this is called macro mode.

Take a picture of the piston if you can too. Does it have a sealing face?
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Unread postAuthor: cannon monkey » Sat May 30, 2009 6:20 pm

Biopyro wrote:So you're saying that the piston is not sealing against the barrel port?

To take close up pictures, press the little flower on your camera, this is called macro mode.

Take a picture of the piston if you can too. Does it have a sealing face?


it has a sealing face piston made of hot glue seal face is inner tube from a bike tire held together by a nail.. i couldnt find a screw the right size
i am having a small problem tring to get it to seal ( i used 4 layers of the tire) i be posting pics more when i have time i am baby sitting right now


broke it :shock: :x :( cant fix til tuesday i cant believe it this is wat i get for being impaicent and tring use pvc pipe for a barrel i snaped the hose barb in half


here the broken part :(



<a href="http://s119.photobucket.com/albums/o124/monkey083192/?action=view&current=102_2749.jpg" target="_blank"><img src="http://i119.photobucket.com/albums/o124/monkey083192/102_2749.jpg" border="0" alt="Photobucket"></a>
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Unread postAuthor: Biopyro » Sun May 31, 2009 4:01 am

Can't see anything again. Did you use macro mode?

Sounds like it could be leaking past the hole in the rubber where the nail is. Did you use a washer or is it just the nail?
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Unread postAuthor: Willdebeers » Sun May 31, 2009 4:40 am

I think he used just a nail.
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Unread postAuthor: cannon monkey » Sun May 31, 2009 9:34 am

just a nail this last picture of the broken hose barb i did use the mico mode ( the flower) i need more practice taking pictures but ya i got bored and it broke me being stupid
lol

there no washer it just hot glue and the nail i be talking pic of the piston for you guys when i get a new hose barb
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