Method Exit bag and inert gas megathread

[Vizzy]

Well what can I say ?! Impressive work, esp. the DIY aspect! What did the whole setup cost including tools ? Did you post tubing and crimping connector diameters somewhere ? This could be handy for other users.

Thank you

For me it cost somewhere near 500-600 dollars but it depends on the country, I did this in Thailand so it is pretty cheap but expensive for a developing country

Yes I am making a document right now on how I did it
Oxygen regulator which comes with the eebd hood, hose is cut to remove the eebd hood


Eebd hose connected with a hose clamps to the flowmeter barb and no leaks


After eebd hood and extension hose are crimped using a hose crimping tool


Final product



Ear plugs:

 

[Das Nichts]

Yes I am making a document right now on how I did it

Thats awesome. There is not too much detailed info avaiable about eebd, so this will come in handy!

 

[GasMonkey]

my nitrogen gas setup

Post it in the Inert gas setups gallery.

 

[Vizzy]

Post it in the Inert gas setups gallery.

Okay

 

[thot88]

I plan to leave in 2-3 three years. Home helium packaging is sold in my country. The question is how do I connect the tube to the tank valve. Need an adapter?

The tank also contains 99% helium. No 80% helium 20% oxygen.

 

[GasMonkey]

how do I connect the tube to the tank valve

In the old CTB reports of people using the typical balloon helium tanks they connected the tube directly, there was a compilation in Reddit but the community is on private now. On Russel Ogden's paper looks like it's connected directly too.​

 

[Mare Imbrium]

I plan to leave in 2-3 three years. Home helium packaging is sold in my country. The question is how do I connect the tube to the tank valve. Need an adapter?

The tank also contains 99% helium. No 80% helium 20% oxygen.

You must remove the nozzle from the valve, then you can directly connect a PVC hose to the valve, without a pressure reducer. But you cannot trust the specification of 99% Helium on a balloon tank.

 

[Vizzy]

Body straps

 

[shadowfinal311]

Okay, I'm an idiot. Just realized I was reading my flow meter wrong while doing my daily volume/leak check. There are two measuring units on it (LPM/SCFH). I've been reading the SCFH units, mistaking them for LPM.

So when I did my first few practice runs, I claimed it was at 20 LPM, but it was actually 10 LPM.

When I did my last tests, I claimed it was at 30 LPM, but it was actually 15 LPM.

At 15 LPM, I didn't suffocate/hyperventilate/panic and felt the tingles and lightheadedness, so PPeH had it correct about the flow rate IMO.

Still gonna follow the recommended 25 LPM with the 3M hood for my final run. My backup cancelled recently and I doubt I would be able to get an EEBD hood prior to the end of the month so I'll just have to sit tight with the 3M hood.

 

[thot88]

You must remove the nozzle from the valve, then you can directly connect a PVC hose to the valve, without a pressure reducer. But you cannot trust the specification of 99% Helium on a balloon tank.

Thanks for the answers. I have read in this thread that welding gases are usable, for example nitrogen and argon. They are more reliable than home helium packaging?

 

[GasMonkey]

They are more reliable than home helium packaging?

Depends on the purity, if all of them have the same purity for the ExitBag is: Helium > Nitrogen > Argon.

 

[outrider567]

Okay, I'm an idiot. Just realized I was reading my flow meter wrong while doing my daily volume/leak check. There are two measuring units on it (LPM/SCFH). I've been reading the SCFH units, mistaking them for LPM.

So when I did my first few practice runs, I claimed it was at 20 LPM, but it was actually 10 LPM.

When I did my last tests, I claimed it was at 30 LPM, but it was actually 15 LPM.

At 15 LPM, I didn't suffocate/hyperventilate/panic and felt the tingles and lightheadedness, so PPeH had it correct about the flow rate IMO.

Still gonna follow the recommended 25 LPM with the 3M hood for my final run. My backup cancelled recently and I doubt I would be able to get an EEBD hood prior to the end of the month so I'll just have to sit tight with the 3M hood.

Very interesting--Glad you found out that you originally had the wrong flow rate, to put it mildly

 

[kyxz]

I have a nitrogen tank, but I was wondering how to safely open/turn it on. I feel silly to admit it.. but I'm afraid of it turning into a missile (its 125 cu ft) or does that only happen if the valve gets broken off?
I apologize for the ignorance.

 

[GasMonkey]

Why do you wanna open it?

 

[outrider567]

I have a nitrogen tank, but I was wondering how to safely open/turn it on. I feel silly to admit it.. but I'm afraid of it turning into a missile (its 125 cu ft) or does that only happen if the valve gets broken off?
I apologize for the ignorance.

Mine is a 125 cu ft also--You need to use the nitrogen regulator to connect it first, its under great pressure---When I realized that I had a Max Dog regulator(repurposed Oxygen regulator so it was faulty), I had to use a wrench to disconnect the regulator from the tank, but I made it real tight originally--Finally, using the adjustable wrench, I got it and it blew off like a bullet sounded like a gunshot lol, bang! good thing my earplugs were in---

I have a nitrogen tank, but I was wondering how to safely open/turn it on. I feel silly to admit it.. but I'm afraid of it turning into a missile (its 125 cu ft) or does that only happen if the valve gets broken off?
I apologize for the ignorance.

Remember to keep it below 125 degrees, or it might start spitting out some high pressure bursts, maybe like an out of control fire extinguisher

 

[ztem]

DIN 477 NO.13 with G 5/8 INT thread is air standard in Germany.Since drager is a German company,why is the thread of this company's cylinders M18 × 1.5?
I don't see any M18 × 1.5 thread in these tables:

Why is Linde so good at precision?

Linde is committed to the highest standards of purity and accuracy with its HiQ program of specialty gases and precision-engineered gas supply equipment

hiq.linde-gas.com

 

[GasMonkey]

 

[ztem]

Now it's crystal clear

 

[feels_like_rain]

I see that I now have the option to chat or start a conversation

Is the "Start a Conversation" function the same as a PM here ?

I'm trying to figure this out too.

 

[GasMonkey]

Conversation is better than Chat.

 

[kvhenni]

Given a 150 bar, 1.5 m3 Nitrogen tank. What output pressure would you recommend for an exit bag? How to estimate the time of gas flow based on the output pressure and the tank's volume?

 

[GasMonkey]

You should use a flow regulator at 15 LPM.

 

[GeneTunney]

Finding a Nitrogen regulator with a flowmeter in the UK is proving difficult.

I'm wondering how likely it is I'll find one online for delivery.

 

[GasMonkey]

Finding a Nitrogen regulator with a flowmeter in the UK is proving difficult.

You can get a pressure regulator and attach a flow meter to it. Regulators with integrated flow meters are more rare yeah.

At 15 LPM, I didn't suffocate/hyperventilate/panic and felt the tingles and lightheadedness, so PPeH had it correct about the flow rate IMO.

The best way to test any constant flow setup is to test it with air (that's what EXIT International did to determine the optimal flow rate for ExitBags). That increases the price a lot obviously since you need an air cylinder+air flow regulator but it's super cool to see the setup in action, test different flow rates and see that you can breath freely without problems, especially for homemade ExitBags. ​

I'll just have to sit tight with the 3M hood

Can the gas inlet in the hood be moved to be able to lay or recline comfortably while wearing the hood? cuz in the photos looks like the inlet is in the back of the head.

 

[shadowfinal311]

Can the gas inlet in the hood be moved to be able to lay or recline comfortably while wearing the hood? cuz in the photos looks like inlet is in the back of the head.

The gas inlet cannot be moved, though it's not a problem to recline comfortably with it as long as keep the tube from being directly behind you. Lying on your side isn't an issue, but I wouldn't recommend lying on your back with it.

I forgot to note that the 3M hood has a perforated section underneath the chin. I assume this is there to allow purging since the elastic is tight.

 

[kvhenni]

No flowmeter, just adjustable output pressure in psi/bar

 

[GasMonkey]

No flowmeter, just adjustable output pressure in psi/bar

We don't know that, nobody has done tests to determine the optimal pressure, just the optimal flow. The ExitBag has always been used with a certain flow rate, not a certain pressure.

 

[Daria98765]

The EEBD hood is very good.
You will also have to find an adapter to connect the EEBD hood to the output of the flow regulator.
The era of the "ready to use kits" ended when the Police took down escMode, now you have to do your homework to build a good setup.

i already built one nitro + bag set,but had to leave it for some emergency reasons and it's gone right now. Since then I wanted to buy EEBD hood from escmode,but it's gone now… Do you know if there any analogue of escmode where I could buy EEBD hood?

 

[Dmoore3232]

Hi, I have a question if anyone can help that would be appreciated, is this all I need to for a nitrogen suicide?

550 liter nitrogen tank

https://www.jjstech.com/e1066.html?...BjGhxGR_8AMOnQbJzjDnEYt-p1p0I-voaAsK_EALw_wcB

EEBD hood, the cord on it seems like it should be longer though

https://www.ebay.com/itm/DRAGER-SAVER-CF-15-10-EMERGENCY-ESCAPE-BREATHING-DEVICE-EEBD-FULL-FACE-MASK/202916576201?hash=item2f3ec53bc9:g:pWwAAOSw2oVeWR7r&amdata=enc:AQAIAAAA4Mhb7RG8v9dFyHNJrEMEPLWiIIChGY0/wP8U5smQ4h54wos0VQ31IbZSsJqoV30HJ6XEWuzFucN1/bO8qXiHHyJpJ3guppT3AtX8Dl0AFSCHHAWowjAOlReFkvhjSxfN+YSOsyQi6aIwUExFg3hUfkxGNfAlzpV93kQ+jvGfdZT5XSNCTadA1t4qTH3aos8SeyWe4XeB+HYMn0ODtZdRRqy4Sls4ScZE2Yhp5X5sohKwTPz47b45mIZ1bXtBDAOMRFQSbuhOytX6pBaRTv97K/KgcsjdBWHOFO+qyibOugZi|tkp:Bk9SR5zpsYyPYg&pageci=9714cf06-2213-4aed-ab3d-f3d329de3ecf&redirect=mobile

Flowmeter: I think this might be wrong, I bought it, it does not say nitrogen though

Amazon product ASIN B09SQ4D674
Do I need any more parts?

 

[shadowfinal311]

Flowmeter: I think this might be wrong, I bought it, it does not say nitrogen though

Amazon product ASIN B09SQ4D674
Do I need any more parts?

If you search "nitrogen flow meter" on that site, the first two results should be what you are looking for. They should say "Nitrogen Flow Indicator" in their title.

You will need a nitrogen regulator to convert the high pressure from the tank to low pressure so it can be usable by your flow meter.

You're most likely gonna need an adapter that can connect between your EEBD hood and your flow meter.