Hi, I was looking at this same regulator, but the listing says that they only sell to medical professionals or brew masters. Are you either of those? If not, how are you going to order it? You can PM me the answer if you're not comfortable answering it publicly.
I think there was a bit of confusion before, from previous posts I read, about the conversion rate for using nitrogen with an argon flowmeter. But it seemed eventually people settled on the conversion rate of 1.19. You multiply the argon regulator litres per minute(LPM) reading by 1.19 to give the actual nitrogen flowrate.
So:
- 12.5LPM on argon flowmeter gives ~15litres LPM nitrogen flow
- 15LPM on argon flowmeter gives ~ 18LPM nitrogen flow
- 20 LPM on argon flowmeter gives ~ 24 LPM nitrogen flow
Or do the opposite, and multiply the nitrogen flowrate you want by 0.84, to give the argon regulator rate you need to set.
E.g. -15(LPM nitrogen flowrate you want) * 0.84 = ~12.5 (argon LPM regulator setting).
- 25(LPM nitrogen flowrate you want) * 0.84 = ~ 21(argon LPM regulator setting).
Etc.
Here's the conversion chart people previously used.
View attachment 131937
They give an example, using helium with an argon flowmeter. The website used standard cubic feet per hour (SCFH). It's the same conversion for litres per minute (LPM).
Their final result should say 'Actual Helium Flow', not 'Actual Argon Flow'. That was a mistake on their part:
View attachment 131927
Can you accurately flow a different gas through a flow control device not calibrated for the same gas?
www.harrisproductsgroup.com
If you're still worried about it, then you may be more comfortable using a nitrogen regulator with nitrogen. You have 3 options:
1)Nitrogen regulator with floating ball flowmeter(Litres per minute (LPM) or Standard cubic feet per hour (SCFH), which can be converted to LPM:
View attachment 131930
2)Nitrogen regulator with litres per minute gauge:
View attachment 131931
3)Nitrogen click-style regulator:
View attachment 131933
sanctioned-suicide.net
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I think I'm gonna go with the 70% rule from justanswer and hope I have enough nitrogen in case it's the other way round. I've got an 8 liter, 200bar cylinder, already wasted between 30 and 40bar on leak testing and trial runs. It's supposed to contain 1600 liters when it's full, so hopefully, assuming the next time I follow through, I should have more than enough, even if the expert was wrong. I guess that's my safest bet at this point, given that I've got no reliable source of information and I'm too dumb to figure it out myself.Omg someone went to justanswer.com for help in CTB.
@chester i'm in the same boat as you.
I'm stuck between weather or not the flow meter is higher or lower than the correct reading
and if so by what factor.
Right now iv settled on the idea that I should multiply my intended usage by 1.2
Exit bag and inert gas megathread
You can use an argon regulator (with flowmeter) on a nitrogen cylinder if the cylinder connection for nitrogen in your region is the same as an argon cylinder connection. ... You seem like you've done a lot of research. Do you know if a US (CGA580 flowmeter connection [like this one]) works...
However I still dont know who is right and who is wrong,
Iv seen the answer of a minus 80% reduction thrown around before
using the logic that Air is basically nitrogen,
and that Argon is 18% heavier than than air
and that Air is 2% heavier than nitrogen
Therefore argon is 20% heavier than Nitrogen
All i know for certain is the results of the two tests I ran
and until i see otherwise, i can only assume that everything
else is just some one on the internet giving their opinion
I really don't know either.
do let me know if your research shows up anything else.
I think if there's a concern that flow meter isn't calibrated properly or accurate , you can just see how fast your exit bag fills up.Assuming it's standard turkey size oven bag , It it fills up under a minute , your prob in the 15 lpm range . If it' fills up in 30 seconds .. your in th 25 lpm plus range .You should be doing a test run anyway to make sure everything fills up correctly and it working .
Don't do the cpap. Do exit bag , or if you're interested in exploring scuba and scba maybe peruse those threads and see if you prefer . If you are certain of the purity of the gases , most members here will rank in this order 1. Helium 2. Nitrogen 3. Argon. This ranking is due to the weight of the gases . They will say the lighter the gas the better it stays in the bag . My personal opinion in that they all would suffice at the proper flow rate . Keep in mind the flow rates will be different , find the proper conversion if you want to be exact .
I def haven't heard of anyone coughing up blood that's def a first , and I don't understand that .
I don't think it came from the lungs. It's like something was sore somewhere between my lungs and my mouth. Hard to tell what and where exactly. Coughed up a few teaspoons of saliva mixed with mucus and blood, but it was mostly blood. After 15 minutes no more blood. Maybe I have a condition I don't know about. But it only happened to me after the attempt, while I was already hypoxic, never before.
I wasn't uncomfortable at all in my tests, but I use an EEBD Hood--Did you track your oxygen level with the oximeter? After I took off my Hood, it dropped all the way to 40
Did a final test run a few hours ago. I finally got an oximeter. Maybe I've done something differently, because there was no discomfort this time. Or maybe I didn't carry on long enough, I let my Sp02 drop to only around 60, which happened way quicker than I expected. Funny how it went right back up to 98 after just two normal breaths. I wasn't as lightheaded as previously, so I definitely didn't wait as long. No blood this time, but I have a dry cough, like something was itchy in my throat.
Probably less than 20 seconds, I didn't time it. Still possible the discomfort would set on later. But i no longer care. It's not like I'll have to endure it for hours. Even if the pain was excruciating, it's only a minute or so, I can take it. As long as I have a decent chance of success, I'm good. I might end up a brain-damaged vegetable, but you know what? Even if that happened, I'd still consider it a successful attempt. My body would survive, but I wouldn't survive as a person. Good enough for me.
I searched this forum (and other sources) for the same answer, no luck. It seems it only makes sense to use a flow regulator, not a pressure regulator. I bought one for Argon, because it was cheap and easily available. But then there's an issue if I'm converting the flow rate properly or not. I hope I am.
Thanks a lotA little update from me: don't underestimate the power of CO2. This was supposed to be the last time. Just like in my previous post, I thought to myself "screw the hyperventilating and bag inflating, I'm gonna be out in a matter of seconds anyway". Well, it was hell. I barely managed to go down to 80% SpO2. I think that's where my previous discomfort came from, that I didn't follow the instructions properly enough. Let it be a warning to others.
I searched this forum (and other sources) for the same answer, no luck. It seems it only makes sense to use a flow regulator, not a pressure regulator. I bought one for Argon, because it was cheap and easily available. But then there's an issue if I'm converting the flow rate properly or not. I hope I am.
So yeah, unless you can find a Nitrogen flow regulator, you're risking it one way or another. Nobody will give you a definite answer, or at least it's unlikely you'll get this answer here. Unless some engineer specializing in fluid mechanics joins soon
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The answer to both is "I'm not sure, I'm far from an expert". All I can say is I hope the conversion rate is correct, otherwise I'm getting myself in trouble. And my flow regulator has a transparent cylinder with a floating ball in it. Does it mean the one you sent won't work? No idea.
Thanks for the respons! Okay so even when my flow regulator says full at 2000 psi, that's no problem that it's 2500 psi?
Question 1 - I don't know.
This cylinder contains 400l of nitrogen. 400l at 15lpm gives about 26min. According to PPH (if you trust them) death should occur within 5-10min, 2 minutes for the bag inflation, leaves you 14 minute margin. I'm just stating the facts, I'll leave the conclusions to you.
