Ever wonder how it's made? SCUBA cylinders...

[Rubycon]

Or just about any high pressure cylinder...

https://www.youtube.com/watch?v=Z8R-I5I1Dgo

Neat stuff.

Now just make sure you keep 'em chained up! The non MTs, that is.

 

[Jeff7]

Anytime I'm near a pressure vessel, I can't help but hope that the welds are of excellent quality.



(I'm sometimes around small industrial air tanks at work, which aren't made from a single piece like scuba tanks.)

 

[UglyCasanova]

Anytime I'm near a pressure vessel, I can't help but hope that the welds are of excellent quality. o_o

I do get mental pictures of them exploding when I'm near one.

 

[Jeff7]

I do get mental pictures of them exploding when I'm near one.

The other thing I think is, "Made in China."

 

[phucheneh]

There are a LOT of Chinese air compressors out there and I've never heard of a catastrophic rupture. Key factor: <150psi working pressure.

Things intended to take much, much more pressure are generally not made in China and have to meet strict standards, be regularly recertified, ect.

edit: and even then, I think Mythbusters shot holes in 3000psi SCUBA tanks without anything super-violent occuring. Cylinder might go for a ride, but no 'splode.

 

[Tiamat]

That molten steel lathe is pretty cool. I've never seen a tool like that!

 

[iamwiz82]

There are a LOT of Chinese air compressors out there and I've never heard of a catastrophic rupture. Key factor: <150psi working pressure.

Things intended to take much, much more pressure are generally not made in China and have to meet strict standards, be regularly recertified, ect.

edit: and even then, I think Mythbusters shot holes in 3000psi SCUBA tanks without anything super-violent occuring. Cylinder might go for a ride, but no 'splode.

A scuba tank is a bomb. Divers are taught from the start that the tank is to be treated with respect as it contains more energy than a hand grenade.

http://abcnews.go.com/US/scuba-tank...war-veteran-russell-vanhorn/story?id=14502395

 

[Jeff7]

There are a LOT of Chinese air compressors out there and I've never heard of a catastrophic rupture. Key factor: <150psi working pressure.

Things intended to take much, much more pressure are generally not made in China and have to meet strict standards, be regularly recertified, ect.

edit: and even then, I think Mythbusters shot holes in 3000psi SCUBA tanks without anything super-violent occuring. Cylinder might go for a ride, but no 'splode.

An air tank at an employer of mine busted a seam. 90psi.
It was only a few years old, has an inline air dryer, and otherwise looked to be in good shape.
No one was around when it burst open, as it happened at night. I didn't hear about it until the old one had already been removed though, so I don't think it was too violent. Still probably not something you'd want to be around when it goes off.

 

[zerocool84]

My job is literally right next door to a warehouse that makes air cylinders for scuba and other applications. I got used to the rotten egg smell every so often and loud crash of metal.

 

[phucheneh]

Tank Explosions Not Unheard Of

Jill Heinerth, a technical diving expert and legal consultant, said this particular scenario is unusual but added that scuba tank explosions are not unheard of.

"Pressurized tanks can explode for a number of reasons," said Heinerth. "If a tank were to fall over for instance, and the oxygen valves move to an on position and let's suppose there's a source of ignition like a car that's running, if these mix then you've got all the right components for a massive explosion."

From above link.

Holy fucking shit, 'technical expert,' you're technically a goddamned certifiable retard.

 

[Meghan54]

Holy fucking shit, 'technical expert,' you're technically a goddamned certifiable retard.

Said the pot to the kettle.

 

[Demoralized]

Anytime I'm near a pressure vessel, I can't help but hope that the welds are of excellent quality..

Most, if not all medium to large sized pressure vessels are welded sub arc, all machine welds. Always of the highest quality and free of defects.... most of the time.

 

[Rubycon]

A scuba tank is a bomb. Divers are taught from the start that the tank is to be treated with respect as it contains more energy than a hand grenade.

http://abcnews.go.com/US/scuba-tank...war-veteran-russell-vanhorn/story?id=14502395

Absolutely!

I'm utterly sick of that show ("Mythbusters") performing these "tests" and providing a diminished sense of a hazard just because it doesn't blow up like it does in a movie.

I would not say the tank is a bomb outright, perhaps a full one is a potential bomb. Mistreating a full cylinder is very foolish and eventually the odds will turn against you, often with catastrophic results.

Those punches would be good for getting rid of lots of hard drives with, um, sensitive material, quickly!

 

[dank69]

I like the part where they elongate it by forcing a large rod into a tight hole.

 

[phreaqe]

The part where they put the glowing tanks into the water and the water started on fire was incredible. i had to go back and watch it a couple times.

 

[Scarpozzi]

I keep a 10lb CO2 tank in my Kegerator

 

[Micrornd]

Next time you are around an oxygen tank (as used for oxy-acetylene welding, not breathing) look at the top of the tank just under where the cap screws on to protect the valve.
These tanks have to be inspected periodically and the month and year of inspection is hand-stamped into the tank.
You may have to scrape off multiple layers of paint, but you can find the original test date (when the tanks started service) on the tank.
They are not taken out of service based on age, but rather on not passing testing.
I have found an 1895 and an 1897 tank in the late '90s, as well as many from 1900 to 1920's still in service (currently).

That's something to think about when you see the tank side gauge of the regulator registering 2200psi

And then stop and think about how the tanks were made then

Kinda like someone pointing out the Empire State Building went from ground-breaking to official opening in less than 15 months.

 

[Pacfanweb]

Most, if not all medium to large sized pressure vessels are welded sub arc, all machine welds. Always of the highest quality and free of defects.... most of the time.

Not when they come from China. Reason to stay away from Chinese made compressors and air tanks.

 

[Howard]

I like the part where they elongate it by forcing a large rod into a tight hole.

A lot of cookware is made the same way.

 

[phucheneh]

Said the pot to the kettle.

I generally dislike it when a retard calls me a retard for calling a retard retarded.

You're really taking the whole 'not only do I not know that I'm stupid, I am actually 100% convinced that I am smart' dipshit personality to a whole new level. Congrats.

Just out of curiosity, do you actually think that oxygen is an explosive? Or that a running automobile is a source of open flame?

Hell, that's not even considering that a SCUBA cylinder is filled with atmospheric air, not just oxygen, making it about 80% inert gases.

You can call an violent rupture of a tank an explosion...it's not, but feel free to call it that. However, if you actually think SCUBA cylinders are at risk for ignition? ...LOL.

 

[DrPizza]

At the end of the year in physics, as a lab to tie a bunch of things together, but mostly as an engineering challenge, I have students make rockets that are powered by 2-liter bottles, about half full with water, and pressurized to 100psi. While testing a pressure regulator in my classroom, I released a 100psi soda bottle under a lab bench. There *was* a book shelf built in underneath, made of relatively thin plywood. There's a 2-liter sized hole in that plywood where the empty (other than air) bottle shot through it.

I am incredibly nervous around my 150psi craftsman air compressor, knowing that it was manufactured by the lowest bidder. Every time I pressurize it and wheel it out into the driveway, I imagine the end blowing off at the weld, and it removing my legs from the rest of me.

 

[ThinClient]

I like the part where they elongate it by forcing a large rod into a tight hole.

:awe:

 

[DrPizza]

I generally dislike it when a retard calls me a retard for calling a retard retarded.

You're really taking the whole 'not only do I not know that I'm stupid, I am actually 100% convinced that I am smart' dipshit personality to a whole new level. Congrats.

Just out of curiosity, do you actually think that oxygen is an explosive? Or that a running automobile is a source of open flame?

Hell, that's not even considering that a SCUBA cylinder is filled with atmospheric air, not just oxygen, making it about 80% inert gases.

You can call an violent rupture of a tank an explosion...it's not, but feel free to call it that. However, if you actually think SCUBA cylinders are at risk for ignition? ...LOL.

Uh, oxygen isn't necessarily explosive, but the right fuels - things like oils and grease, can burn with explosive violence. Iirc, they can also spontaneously ignite. That said, generally, scuba tanks are not pure oxygen. Though, nitrox may contain higher percents of oxygen than atmospheric.