Saturation Diving, Helium Valves

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Saturation Diving, Helium Valves

Postby koimaster » November 30th 2016, 11:11am

In another installment in our series on the basics of divers’ watches, we explain why some dive watches have built-in helium-release valves and why others don’t. We also explain why each type is perfectly OK, depending on the type of diving you do.

Comparing “diving” as most people know it to “saturation diving” is a bit like comparing an amateur bicyclist to a professional construction worker. They might share the same environment and the same need to breathe, but other than that, they are in fact doing quite different things (this applies to most types of diving, by the way). Saturation diving (meaning the diver’s tissues have absorbed the maximum of gas possible) was practically explored at the end of the 1930s in order to (A.) reduce a diver’s risk of decompression sickness when (B.) working at great depth for (C.) long periods of time — in other words, to increase both effectiveness and safety.

At the end of the 1950s, the necessary scientific basis was provided to begin saturation diving in the military and, soon after, to use it on a commercial basis. In short: such a diver works under water and lives in a dry, pressurized environment for up to several weeks, and is decompressed to surface pressure only once, at the end of the mission.

http://www.watchtime.com/blog/dive-watc ... e-watches/
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Re: Saturation Diving, Helium Valves

Postby bedlam » November 30th 2016, 5:13pm

If you can unscrew a crown, you don't need an HEV
"If I could put a finger on the moment we genuinely fucked ourselves, it was the moment we decided that data was something you could use words like believe or disbelieve around...

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Re: Saturation Diving, Helium Valves

Postby conjurer » November 30th 2016, 5:19pm

bedlam wrote:If you can unscrew a crown, you don't need an HEV


What if you got no arms or legs??
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Re: Saturation Diving, Helium Valves

Postby bedlam » November 30th 2016, 5:21pm

conjurer wrote:
bedlam wrote:If you can unscrew a crown, you don't need an HEV


What if you got no arms or legs??

Then getting in and out of a diving bell is gonna be a bitch ;)
"If I could put a finger on the moment we genuinely fucked ourselves, it was the moment we decided that data was something you could use words like believe or disbelieve around...

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Re: Saturation Diving, Helium Valves

Postby conjurer » November 30th 2016, 5:26pm

bedlam wrote:
conjurer wrote:
bedlam wrote:If you can unscrew a crown, you don't need an HEV


What if you got no arms or legs??

Then getting in and out of a diving bell is gonna be a bitch ;)


Hater!!:

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Re: Saturation Diving, Helium Valves

Postby Tzimisces » November 30th 2016, 5:52pm

conjurer wrote:
bedlam wrote:
conjurer wrote:
bedlam wrote:If you can unscrew a crown, you don't need an HEV


What if you got no arms or legs??

Then getting in and out of a diving bell is gonna be a bitch ;)


Hater!!:

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Re: Saturation Diving, Helium Valves

Postby Lost » November 30th 2016, 9:28pm

conjurer wrote:
bedlam wrote:If you can unscrew a crown, you don't need an HEV


What if you got no arms or legs??

And you're a diver?

Your name is Bob?
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Re: Saturation Diving, Helium Valves

Postby koimaster » January 26th 2018, 4:52pm

t
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With the lilt of Irish laughter

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Re: Saturation Diving, Helium Valves

Postby bedlam » January 26th 2018, 8:47pm

Its a couple of years later and HEV's are still pointless.
"If I could put a finger on the moment we genuinely fucked ourselves, it was the moment we decided that data was something you could use words like believe or disbelieve around...

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