C.Martin
New Member
"You must give of your self" "Alright i can do that, how much?" "Sexually" "....."
Posts: 333
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Post by C.Martin on Oct 12, 2004 6:24:14 GMT -5
correct me if i'm wrong but don't some paint ball guns use a nitrogen/HPA system? I would think that it would be possible to use nitrogen/HPA in a classic airsoft gas rifle, but not a cheap GBBor NBB. Cause you wouldn't want to deal with nitrogen being a liquid, but in order to cheap it as such you'd have a hell of a time keeping it cold enough. At 0 degrees, nitrogen is still a gas, which means you can keep it undergreater pressures, with out turning it into a liquid. Yes its a light gas, but with some decent pressure behind it, it would cycle and fire a BB no problem, and as long as the temp of the gas, is within the tolerance of the seals, you wouldn't have a problem, other then if the pressure is to high. But a nitrogen setup wouldl work better in colder climets .
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Post by Gestapo on Oct 12, 2004 7:01:07 GMT -5
correct me if in wrong, but i think with paintball guns, most parts need to be reinforced to be able to use nitrus. as for using them in clasics, i think it might work, ill check the clasic airsoft forums and see if any one uses nitrus.
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Post by Munin on Oct 12, 2004 10:46:50 GMT -5
The "reinforcement" that paintball guns need to use nitro systems comes from the fact that nitro rigs run at 3000 psi, as opposed to CO2 systems, which run at around 1800 psi. Even still, this pressure is regulated down to something smaller in order to actually propel the paintball.
Theoretically, if you can regulate the pressure to a known, consistent value before you put gas into your magazine, and if your gas has sufficient gas density to be able to do the work via expansion, you can run a gas gun in any reasonable temperature environment. The hard part is doing the math to figure out what gas pressures you need for each gas at each temperature to provide consistent results.
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Post by Jacko on Oct 12, 2004 11:16:44 GMT -5
I think this thread should be stickied.
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Post by Zorak on Oct 12, 2004 14:31:41 GMT -5
correct me if in wrong, but i think with paintball guns, most parts need to be reinforced to be able to use nitrus. You are wrong. Consider yourself corrected. Several manufacturers make tanks with integral fixed regulators than you can just screw into the place where your CO2 bottle went and go.
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Wilycyt
New Member
KSC G23f, KJW MK1
Posts: 192
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Post by Wilycyt on Oct 12, 2004 16:38:11 GMT -5
wonder if un-conventional airsoft could fashsion such a device (scratches chin in thought) it would be cool to be able to use gas guns consistently in colder temps
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Post by BoredKender on Oct 15, 2004 1:50:57 GMT -5
i have a semi-random question that almost kinda pertains to this thread... in a very generic sense if one were to keep his bottle of green gas in the refridgerator and then fill his room-tempereature mags with it, would once get better mag pressure out of it when it expands into the mag thus resulting in higher velocities? note: sorry about all the typos i probably made
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Mite
New Member
I'm a pretty little girl
I am a professional pyro. No, seriously, I am.
Posts: 242
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Post by Mite on Oct 15, 2004 7:12:23 GMT -5
Actually I would suspect doing it the other way around would be better. Keep the mag in the fridge and the gas nice and warm.
With the gas in the fridge the available pressure will decrease. When you fill a mag the pressure in the mag cannot exceed the pressure in the green gas canister. Unless there is a pump gas will not flow from a low pressure area to a high pressure area, just like water won't flow uphill under most normal circumstances (see hydraulic jump for a wild phenomena).
If you chill the mag, then as it fills the gas will be cooled and the pressure will decrease. You could also potentially cooling cycle the mag. Fill it, cool it, fill it again, etc...
I hate to even suggest this due to the risk, but you could lightly warm the gas canister. Keep in mind the upper temperature is usually 100 to 120F. If it explodes you did it wrong. I'm telling you right now it is a stupid thing to do. I wouldn't do it myself, but I wanted to complete the theory discussion.
The one thing that would prevent the above from working is if some of the gas becomes liquid when it is cooled. Not having thermodynamic data in front of my right now, I can't even begin to speculate. The above should work as long as the gas remains all gas during the process.
Mite
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Post by Knief on Oct 15, 2004 11:33:12 GMT -5
What Mite is suggesting is the method of filling an old airsoft gas can with PC duster gas. You cool the can that you're going to put the gas into, and the guide that I read gave them same precautions about heating the can as Mite did. That is, it may help, but would be an incredibly dangerous and stupid thing to do.
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Post by Dawg Bait on Nov 7, 2004 4:10:52 GMT -5
from my limited understanding green gas is essentially propane but i could be wrong I believe its close to Propane, just with Silicon added to the mixture. I know this becasue(Dont TRY this at home. I'm a Professional) i was bored and had a half empty can of green gas and a lighter.. It created a Line of flame.. Ross Dawg Bait
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Post by Orion on Dec 12, 2004 12:56:25 GMT -5
While you guys are arguing about propane and all that good stuff, I just thought I'd let everyone know this. I was reading really old posts, and someone said something about "blue gas" or a winter type gas. Well, I found something that would be considered "winter gas". It says NOT to use in normal weather conditions because it's so powerful. Link 1- Go to WGC shop and search GD-Gas1000 Link 2-http://www.wolfarmouries.co.uk/airsoft/bb/category.asp?page=category&id=9 First one, and third one down. And the most questionable of the three... Link 3- www.cybergundepot.com/Merchant2/merchant.mvc?Screen=PROD&Product_Code=63501&Category_Code=accMind you I have heard very little about these, so if any try to use it and it ruins your guns, I apoligize, but do so at your own risk. Information Links Regarding It snowman.ascuk.net/testing.htm "Generally I use Abbey 134a or Cybergun Winter gas. The Winter gas, typically, produces around 40 fps more velocity than 134a. Ambient temperature is important as 200fps at 16C is not comparable with 200fps at 21C, as any gas will produce more pressure at higher temperatures" www.airsoftretreat.com/forums/post.asp?method=ReplyQuote&REPLY_ID=394667&TOPIC_ID=44168&FORUM_ID=19A few posts down, a person nicknamed "snowman" says The Cybergun is gas is weaker than proper HFC 22, but stronger than 134a. And yes, I am aware that some of you are boycotting cybergun, so no need to post here needlessly.
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Post by stambo39 on Jan 4, 2005 10:32:08 GMT -5
well what about butane is that the same as green gas or no. thanks. p.s i am trying too learn a lot oabout this do u know a web site i can learn a lot about airsoft guns.
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Post by Munin on Jan 4, 2005 18:18:48 GMT -5
Dude. This is a website where you can learn a lot about airsoft guns. Read the stickies and FAQs.
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Post by Lord Gilbon on Jan 14, 2005 9:08:51 GMT -5
ok. let me clear a few things up for you. first off. its been scientifically proven that MOST "green" gas is infact propane. which it should not be because its canister doesnt pass united states specifications for legally carrying propane. also, even though some green gas canisters say its not flammable...well, THEY ARE. and to clear up this issue on gas in the winter. no, green gas sucks in the winter, so does propane (since there the same thing), and so does CO2, especially CO2. i used to play paintball and CO2 sucks in the cold. and no, butane wont work well either. and i dont really think youd want your gun blowing up on you.
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Post by Zorak on Jan 14, 2005 13:09:03 GMT -5
If our results at the chronograph stand for OP:FS were any indication, CO2 remains viable at lower temperatures than green gas. Some people showed up with CO2 pistols and were shooting in the 390fps range.
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