N20 Cartidges

[vmaxnick]

Considering it's only pressured too 900 PSI(as someone else stated) wouldn't most marker(mags especially) be exploding constantly?

Just sayin.

Even breathing air could explode if combustible material, heat and pressure are added in the right quantities, but 02 and n20 would explode eventually. (So I was told when I used to work in a hospital changing O2 and N20 cylinders the two mixed make entinox, given as pain relief)

[vmaxnick]

n2o, just like pure oxygen, are not flammable. It is an oxidizer, meaning that it will speed up a combustion reaction. Mixed with oil it increases the possability of an fire or explosion, but it would be very unlikely.

Interestingly, when changing Hpa N20 or O2 cylinders You must never use oil on the regulator threads only talc!

CO2, Argon and Nitrogen are all ok as the first is Virtually non-iinflamable and the later two are inert

Thus endeth all I ever learned about compressed gasses!

Incidentally there is a video on one of the painball forums of an HPA cylinder catching fire and going up like a rocket!!!

[vmaxnick]

That's N2O, two nitrogen atoms and an oxygen atom. You're looking for N, which is pure nitrogen.

Even then, CO2 regulates itself by turning to liquid at roughly 800psi, and air/nitrogen doesn't. To get a useful charge, you'd have to pressurize these cartridges to 3000+ psi (think HPA), and then you'd have to put a regulator on the cartridges (hah!) or have your pistol/pump/whatever be able to handle 3000psi unregulated. Unless you're using a pumpmag, that won't be the case.

Good point, even if it wasn't dangerous, it would be pointless!

[vmaxnick]

n2o, just like pure oxygen, are not flammable. It is an oxidizer, meaning that it will speed up a combustion reaction. Mixed with oil it increases the possability of an fire or explosion, but it would be very unlikely.

edit.....meant to say it would very unlikely in a maker. Now if you dumped oil down the asa, aired up with n2o and shot at an open flame(or had a bolt that fit extremely tight in the barrel).

I will try to find the video of the hpa cylinder going up in flames during a tournament and post it, the guys hands were burned up bad and he wasn't even smoking at the time!

Anyone else know for the video I'm on about??

[Hilltop Customs]

Interestingly, when changing Hpa N20 or O2 cylinders You must never use oil on the regulator threads only talc!

CO2, Argon and Nitrogen are all ok as the first is Virtually non-iinflamable and the later two are inert

Thus endeth all I ever learned about compressed gasses!

Incidentally there is a video on one of the painball forums of an HPA cylinder catching fire and going up like a rocket!!!

see my edit....meant to say in the marker.

oil and compressed gasses containing oxygen(even if in mixture or in compound) definetly dont mix.




I just remembered, before any of my friends had air tanks, one of them took the n2o tank off his mustang and used it with his maker till it was empty....not the safest thing. But when he fired it produced the "barrel smoke" worse than anyone that was using co2.

[Hilltop Customs]

I will try to find the video of the hpa cylinder going up in flames during a tournament and post it, the guys hands were burned up bad and he wasn't even smoking at the time!

Anyone else know for the video I'm on about??

I know exactly what your talking about, I havent seen the video though. There were a few of these accidents in the past few years.

What happens is something flamable gets in the tank(most likely oil) and as the tank gets filled....the extreme pressure combined with the heat generated from filling cause it to detonate just like a diesel engine. The pressure generated from the detonation is far to fast for burst disks to do any good and(what normally happens) the reg blows off, or blows to pieces.

[vmaxnick]

Argon

If anyones interested
I have converted all my mates to Argoshield (Inert welding gas) for markers.
We fill up our bottles until the bulk tanks drop to 2500psi, then we use the 2500psi bottle as a first stage fill tank and top up off a new 3200psi bottle. when the first stage bottle drops to about 2000psi, we stick it back on the mig and weld till it's empty.

Argon's expensive, but because we use it all up, it works out not much dearer than HPA!

Argon bottles use a din bottle fitting


ARGHHH! Almost forgot to add; instead of HPA NOT CO2 don't fill up your CO2 bottles with Argoshield, it is not a liquid delivery gas!!!!!

[craltal]

Just dug out the paper and it states:

"the possession of more than 16 grams of Nitrous oxide by an unlicensed party is a third degree felony"

the story can be found here:

http://brandonnews2.tbo.com/content/2008/mar/19/drug-distribution-charge-added-womans-dui-woes/

(Yes, I know she had 106 cylinders, but by the statute more than 2 is enough to constitute a felony)

Just sayin...

[michbich]

Sorry about saying it was explosive. My mistake.

[vmaxnick]

Sorry about saying it was explosive. My mistake.

Don't apologize, when your face is blown off by a welding oxygen cylinder which has caught fire, started to vent flame and reached flash point (My dad saw it happen once which is why my welding bottles all have double spark arrestors fitted) you wouldn't split hairs between supports combustion and explosive!

[Hilltop Customs]

dont worry bout it dude.....its a really common mistake. Just cause it isnt explosive doesnt make it completely safe....any gas that displaces oxygen can easily kill. co2 could be deadly in the right situation.

[vmaxnick]

dont worry bout it dude.....its a really common mistake. Just cause it isnt explosive doesnt make it completely safe....any gas that displaces oxygen can easily kill. co2 could be deadly in the right situation.

Too right, point in question; Halon gas fire extinguishers killed more people by asphyxiation than fire!

[vmaxnick]

I think we've kind of wandered off topic?

[drg]

Don't use those ... they have much better uses lol

[Hilltop Customs]

I think we've kind of wandered off topic?

maybe....but I do like your argon idea, too bad it would be a pita for field use. Both n2 or argon would be much much safer to use than compressed air

drg lol....just dont drive around and act stupid like the lady in the link posted earlier