Paintball tank& Nitrogen

[paul]

Has anyone filled a 12oz. paintball tank with Nitrogen. Co2 is filled by wt. how do you fill a small tank with nitrorgen,staying under max. psi for tank. Was planning to fill tank to 858 psi for use in my bulked 2250. Any ideas, Thanks.

[p8ntballernwpa]

It cannot be done. I can't remember why, but it just can't. When I played paintball I read alot about different people trying to do different mods and such and this came up alot for some reason. I understand what you want to do, the thing I can tell you is if you want to use HPA through air rifle, just buy a cheap HPA tank and use a remote line. I bought one a while back it was 48/3000 for $35and still had a good hydro on it.

Of course I am saying all of this assuming that when you say nitrogen, you are meaning high pressure air. Becuase when I frequented the paintballforums nitro and air were the same thing.If I have misunderstood you, than I am sorry. Also I am not saying this to put you down or anything for the idea or anything, because if I could put nitro in a regular paintball tank that would be great.

Oh, now I remember why youcouldn't do it. Because the differences in the valves between the two tanks. If I remember correctly, Co2 tanks do not have a regulator on the valve because Co2 pretty muchstays pressurized under 900 psi or something like that. With nitrogen or air tanks they have regulators on the tank valves to keep the pressure at a steady psi. SO....what I am thinking isthe only wayto do it would to somehow fit a nitrogen or air tank valve onto the Co2 tank. Because when you fill most nirtogen or air tanks they are filled at a pretty high pressure, most of them have either a 3000, 4500, or 5000 psi rating.

Hope this helps.

[paul]

p8ntballernwpa, You  are the only person to respond to my thread and i first  posted on crosman gate. So first i will say Thanks for responding. Here are my intentions,i want to get away from co2,just to many problems,temps,slower velocity,inconsistant,etc. I will get a PCP rifle or carbine soon,but want to take my time on deciding which one ,because it will be a one time investment,yell right. So,in mean time ,i have a 2250,with a max-flo valve,and pinned for safty, setup for internal fill using a remote,and it shoots great ,as long as i can put up with the co2 problems.
I have free access to co2 and N2 bulk tanks and have been using co2 for filling my 9 oz. and 120z. tanks no problems there . So, i thought about switching over to N2. I have a high pressure reg. adjustable from 200 to 3000 psi, so i thought about filling co2 tanks to Max 858PSI using N2,it would be same pressure as if i were using co2. I would never in my wildest thought fill a co2 tank over 900 psi . Because as you stated ,the tank may do well ,but the weakist link would be the pinned valve.  I,am going to order a HP tanks from a paint ball store,with built in reg. and gauge . but wanted to try this out ,because i know for fact ,there are a few people who use this same setup,so it can be done ,just have to be carefull, like in everyday life.

I may not get many power shots ,but i hunt so i dont need alot ,just a few power and accurate shots.I think one reason no one resounded is because ,if you dont use common sence or care ,you could very easly get hurt real bad or someone else,so i understand no one wants to give any input on a sensitive subject. But once again thanks for your  opinion. Paul

[p8ntballernwpa]

Your welcome, I know sometimes when you post something and nobody answers, its like did I do something wrong.

So what you are saying is that you can put N2 into a Co2 tank by attaching a regulator somewhere in between the N2 tank and Co2 tank?

See I never heard of someone actually doing what you are attempting. So if you are successful than I would be more than willing to hear how you went about it and to see your setup on how you did it.

Jesse

[Avox]

No, I have no experience with CO2. What I have read though if you want to do this is change your o-rings and modify you valve. The reasons I've read are that CO2 is a much larger molecule than nitrogen. The nitrogen will one leak with CO2 seals and the transfer of gas is different requiring a change in the valve assembly to regulate the gas flow. My guess the nitrogen will flow faster. The difference between nitrogen and HPA are negligible since air is approximately 95% nitrogen.

[daved]

Air is 78% nitrogen, 21% oxygen, and the balance is CO2 and trace gases.  The problem with what he's trying to do is that CO2 is stored in liquid form.  As a liquid has a much higher density than a gas, you get a much greater volume of gas from the same size tank.  CO2 is also self regulating within a certain temperature range.  To get a reasonable shot count from dry air or nitrogen, you need high pressure or a regulator.  Or both.  Based on my experience with my Talon, with an 850 psi fill, I'd guess 3 or 4 shots per fill, at best.  And no idea of what he might expect for power.  Hardly worth the bother.  But that's just my opinion, and if I'm wrong on any of this, I'm sure someone will let us know :-)!  Later.

Dave

[Avox]

Yep my bad on the %! Still I'll hold by the molecule size and the higher pressure would require different seals anyway. Then maybe he was not talking high pressure nitrogen, but what good would it be not at high pressure? I handle both at work sometimes and interchange the two.