What do you suggest? Brass? Iron? Steel?

Ah, is there anywhere online where I could order like a 12" section of a super super super high pressure pipe fitting. Basically what I am trying to do is build a compact cool looking paintball grenade launcher.

How come all these other people (not only the ones shown in the pics, but ones from other forums) think that they can hook up a 12g Co2 Canister to a metal airchamber and since its metal, there is no way it can burst like a PVC chamber?

Where can I get a pipe section for the main part of the air chamber? I have tried homedepot and are any of their pipes (galvanized, and black pipe) acceptable? Once again I am worried since none of these pipes have the pressure ratings on them. The main problem is that I dont know what pressures dif...

This is a tricky question, you see, it worked fine for them, but being as how the threaded fittings are only rated to 150psi I don’t feel it advisable. Yah thats sorta how I feel but its more like this: This is a tricky question, you see, it worked fine for them, but will it one day blow up in my f...

@spudman: Your maths is perfectly accurate, however, in CO2 cartridges, it is partly stored as liquid (as CO2 liquefies under high enough pressures), which makes the molar quantity higher than the pressure and volume alone would suggest. With liquid "gases", Boyle's law cannot be directly applied. ...

Whats Up?!? :D I am trying to build a "gun stock" ball valve launcher that is powered by 12 gram Co2 canisters. The whole purpose of this launcher is to fit it on top of an old rifle stock. Therefore the airchamber needs to be small and compact and I have decided to build it out of steel piping. Her...

I made the stock from wood. All done by me

Well, I have heard of good results from others who have used a powerwasher valve, so for the moment lets keep "getting another valve" out of the solution box please.

////////////////////////////////////////////////////////////////////////////////////////////// Okay, right down to business, here are some pics of the launcher itself: ////////////////////////////////////////////////////////////////////////////////////////////// http://i110.photobucket.com/albums/n9...