How do SCUBA regulators work? | SCUBA 101

In this short demonstration, Jonathan explains and illustrates how a scuba regulator works. You might be surprised just how simple it is!

In the SCUBA 101 series, Jonathan (and sometimes Todd) discuss the technology, physiology and equipment of scuba diving. These videos are designed for entertainment purposes only. They should not be considered a replacement or substitute for professional scuba training.

#scuba #scubadiving #scuba101 #regulators

JONATHAN BIRD'S BLUE WORLD is an Emmy Award-winning underwater science/adventure series featuring underwater cinematographer/naturalist Jonathan Bird.

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[judybassett]

A non-diver once asked me "Why do do you have to buy air? If the tank is empty, why can't you just open the valve and let air flow in?"

[braedynhoward]

When I got scuba certified, I was very surprised to find the regulator to be super simple and basic. Even the tank and the first stage are relatively simple. Great vid!

[heartofhearing]

A new Jonathan upload during breakfast? Yes please

[mostafametwally]

Well done I’ve never seen another video dissect a regulator and show how it works. I’ve been diving for 20 years. I’ve never really understood how this works in such simple detail.

[seymoreheiri]

That's blowing my mind how simple the mechanism is, considering how vital it is for survival. I just assumed it was intricate gears and gadgets in there. Thanks for sharing.

[anonanon]

That's awesome! One little thing i would have liked to hear is the actual part that ensures the air pressure is the same as the environmental pressure, rather than the 10 bars.
As soon as the lever gets pulled, the 10 bar air flows inside the second stage. That air presses the diaphram away from the lever. As soon as the pressure inside the second stage is the same as the environemntal pressure, the diaphram is pushed so far out, that it is in its initial state and is no longer holding the lever down, airflow stops, and thus the pressure won't increase any further.

[smitaparmar]

Super easy has got a lot of great engineering into it. To make things simple, one has to go through complex processes. " If it's not simple, it's not intelligent." A quote by prof Luke Mendes.

[PonyDragon]

Thank you so much!! Now I got it!
And this is also the first time I saw the inside structure of that equipment.
That's just amazing! You are the the best!!!

[flatpicker]

Just what I needed to know, simple, short, technically, with showing smal parts and everything important. Thank U!

[FintasticFilms]

Awesome video! About a year and a half ago I got my own regulator set, and it’s been a game changer. We had a few bad experiences with rental regulators, so we decided to get our own!

[sshomelab]

When you walked away from the tank (stepped out of the frame), I felt it in my gut and instictively tried to jump to hold the tank. I'm trained to pretty much treat tanks like potential bombs.
Nice explanation of the regulators, this is a video I can refer my students to if they ask about it.

Newer/'high end' models also have a venturi system built into them, but I've never been able to tell the difference when breathing. Then again, the adjustable breathing resistance knobs never feel like they do anything for me either, so I guess I'm just really not picky with regulators. I do notice that they free flow really easily when sensitive, so there's that.

[yeukhim]

Thank you Jon for taking your reg apart and do the explaining. Job well done!

[lydialeigh]

That is the best explanation of how a reg works that I have seen yet. Thank you!!

[janboer]

What a simple and yet very interesting and captivating explanation! Great delivery. Thanks

[borikennautical]

Thanks to share it sit. Is amazing how scuba dive came so far, the first scuba divers when through so much in order to enjoy this beautiful underwater world.Jacques Cousteau my favorite scuba diver make it possible for us. Now we have scuba gear make it so much easier for us! Knowledge is power! Thanks again sir and I wish I can scuba dive one day with you and your crew.

[andrewlincoln]

Bravo! This is the best possible video on this topic. Thank you so much!

[elaineb]

Some things are best kept simple, with as few parts as possible. Fewer parts = fewer things which could go wrong. Also, being able to take it apart like that must help, so it can be cleaned & worn parts replaced easily.

PS: awesome ray tshirt!!!

[raymondoverson]

Like a heart valve. Very simple. Thanks for sharing.

[devindawdy]

Awesome well explained video! thanks guys!

[davidmcdonald]

Great video...enjoyed very much nice job! Thank you.