SpudFiles

I would like to know what size threads Co2 tanks have. I have looked all over but I couldnt find the size, I know they aren't standard NSFT or whatever ftting. Thanks for the help.

co2 tanks for paintball use 5/8-18UNF-2B threads, if you are talking about the co2 tanks for beer kegs such as a 5lb or 10lb tank, they use 1.125-12UNF-2B threads.

Thank you for the help, but where could I get these? I already checked mcmaster.

what fittings are you looking for and for wich tank?

I am looking for an adapter that goes from 5/8-18 UNF to 1/2 in NPT does anyone sell these?

You want to hook up CO2 directly that way?
Dont forget the regulator!!!!

psycix wrote:You want to hook up CO2 directly that way?
Dont forget the regulator!!!!

What he said.

Seriously, assuming you aren't building a very high pressure system, the easiest way to do what you want is to just buy a CO2 regulator. It'll have the threads you want on both the front and the back (well, typically it'll have 1/8" NPT, but you can go up easy enough).

what I'm trying to do is use an open fitting and use the check valve on the co2 tank as a hammer valve for the gun.

Funny I asked the same question earlier and all I got was...we know but we aren't telling.....

Your dealing with a lot of pressure in one of those Co2 tanks you might want to do as they suggest and get a decent CO2 regulator and play it on the safe side.