Nitrogen?

Only thing I've used.

Ask Charlie and Air Tanks Plus.

Some areas it can be expensive. I pay $69 yr tank rental and $150 refill. Best I can calculate, I can get @ 4,000 shots on full fills and who knows on partial fills.

Quiet, no electricity needed, fast fills. You can even squirt some in the potato chip bag to keep them fresh.

6,000 and 4,500 psi tanks are available.








 
I've posted extensively on the subject. Cliff notes. Works great. Disadvantage it's not cheap. Big disadvantage is dealing the extremely heavy tanks. I've tried ever way possible to air up air rifles and the best solution for me is the Alkin Compressor. The long term on the nitrogen is going to be just as expensive. can't afford the Alkin. buy the YH Chinese compressor and deal with the water cooling and the air filtration. This all comes down to how much you shoot.. If not a lot see if you can't find a local fire station that will fill your tank. If you shoot a lot just buy the Alkin and be done with it,
 
Nitrogen is cheap compared to trying to dry your AIR going into your gun. Every compressor I have looked at including my GX Cs2 has a single point of air intake that is filtered to keep crud out of the compressor just use that as the intake port for the Nitrogen . Feed it from a standard industrial tank does NOT have to be 6k or 4.5k get a fairly cheap regulator for a local welding supply store some hose and fittings to match the inlet on compressor. 1/4" hose at 10 psi going in keeps up with compressor easy. little side note nitrogen has 0.01 ppm of moisture @-70c. A tank that holds 120cubic feet of N2 will fill your guns for alot more than 4000 shots. a cubic foot of n2 =28316 cubic centimeters n2.

I have a marauder that has a 210cc tank at 2900psi thats about 2 cubic feet at atmospheric pressure thats from empty(I never empty it) about half so I get 50 shots per fill about 120 fills sounds like 6000 shots on a 20 dollar (gas only) bottle, regulator and hose should be less than 100 bucks, tank rent 12 bucks a month or less or just buy an exchange tank from the welding supply store anywhere from 100-200 bucks no rent.

Terry
 
Nitrogen is cheap compared to trying to dry your AIR going into your gun. Every compressor I have looked at including my GX Cs2 has a single point of air intake that is filtered to keep crud out of the compressor just use that as the intake port for the Nitrogen . Feed it from a standard industrial tank does NOT have to be 6k or 4.5k get a fairly cheap regulator for a local welding supply store some hose and fittings to match the inlet on compressor. 1/4" hose at 10 psi going in keeps up with compressor easy. little side note nitrogen has 0.01 ppm of moisture @-70c. A tank that holds 120cubic feet of N2 will fill your guns for alot more than 4000 shots. a cubic foot of n2 =28316 cubic centimeters n2.

I have a marauder that has a 210cc tank at 2900psi thats about 2 cubic feet at atmospheric pressure thats from empty(I never empty it) about half so I get 50 shots per fill about 120 fills sounds like 6000 shots on a 20 dollar (gas only) bottle, regulator and hose should be less than 100 bucks, tank rent 12 bucks a month or less or just buy an exchange tank from the welding supply store anywhere from 100-200 bucks no rent.

Terry

And thats a big if!

If you only shoot low power guns and if you only shoot seldom, Then N2 without boost is ok.

But if you shoot high power guns then you have to have a booster so the last 2000ish psi is not wasted.



And no, it's (fairly) cheap to fit a HP suited container with silicagel and incorporate it in your compressor fill line. The silicagel will last forever. Just dry it in the micro. The cheap a$$ compressor might not though!



But if you want to go "lazy" (and moisture safe) then by all means go N2 and return it with some 1800.2000psi.

Your $$$ not mine.


 
Right now I have two industrial sized welding tanks with about 220 bar of air in both tanks. The air is absolutely dry and pure-breathing air quality. I'm toying with the ideal of getting a YH so I can pump those tanks all the way down then switch over to N2. It cost me about $40 per tank for the air but to fill these with air is way more complicated than N2. That's because the tanks have to be shipped to one of the welding facilities that have the high pressure compressor. Whereas if I go N2, than all welding stores have bulk N2 and I can get the tanks filled at my local welding store maybe the same day up to about 5000psi. I have an Harris regulator that I use to set the output pressure to 250 bar to fill my smaller 100cuft tank and when the main tanks, which are 444cuft, get down below 220 bar, then I can dial the Harris regulator real low feed the YH to boost my pressure back up to 250 bar to fil my guns or pony tank. Since this is pure gas, I won't have to worry about water in the system. Also, since the gas feeding the YH, it will be cold which will help the YH last longer.