SpudFiles

Posted: **Wed Sep 05, 2007 11:33 pm**

hi im designing a new copper gun and i have a few questions. yes i searched the wiki but didnt find what i was looking for.

anyway im making a copper gun with a barrell sealing t valve all copper. my questions are,

what are all the types of copper? ive read about type m type l on some posts here but what are they for?

whats the best to join copper fittings? solder or the copper epoxy stuff?

and where would i get 2 inch copper fittings?

thanks in advance and someone with copper knowledge should make a how to on all the types and stuff...

Posted: **Wed Sep 05, 2007 11:35 pm**

I heard that the copper epoxy paste works just as well, but I have never used it so I would ask a plumber

Posted: **Wed Sep 05, 2007 11:51 pm**

Lorem ipsum dolor sit amet, consectetur adipiscing elit. Cras nec placerat erat. Vivamus dapibus egestas nunc, at eleifend neque. Suspendisse potenti. Sed dictum lacus eu nisl pretium vehicula. Ut faucibus hendrerit nisi. Integer ultricies orci eu ultrices malesuada. Fusce id mauris risus. Suspendisse finibus ligula et nisl rutrum efficitur. Vestibulum posuere erat pellentesque ornare venenatis. Integer commodo fermentum tortor in pharetra. Proin scelerisque consectetur posuere. Vestibulum molestie augue ac nibh feugiat scelerisque. Sed aliquet a nunc in mattis.

Posted: **Thu Sep 06, 2007 12:03 am**

about what kinda of pressure would type k copper be able to handle?

Posted: **Thu Sep 06, 2007 6:49 am**

The lowest operating pressures I've seen for copper pipe is for metric plumbing pipe.

Even then the largest common pipe - 54mm diameter - has a working pressure of 392psi. The burst pressure is a lot higher.

Imperial pipe has higher pressure ratings.

Posted: **Thu Sep 06, 2007 4:34 pm**

I Don't know what the burst preasure or copper pipe is, but I have filled my copper guns up to 400PSI one many occasions, and nothing happened.

I prefer soldering the pipe rather than epoxy as in my eyes its safer, because it joins the metals together, I know epoxy does too, but its glue, but meh,

Posted: **Tue Sep 11, 2007 6:45 pm**

another question. i need a estimate on how much 2 inch type dwv pipe can hold. so anyone who's built a copper gun could you help me out? im not looking for the exact burst pressure just an idea...

and what would be the coolest looking copper gun? inline, over an under, coaxial etc.etc...

edit: i think im going to go with inline. ill use a brass valve with a modded diaphragm and blowgun.

Posted: **Tue Sep 11, 2007 6:53 pm**

Ok on the subject of Epoxy. It is not really a glue. The bond epoxy make is much stronger than any "Glue".