DIN or YOKE??

[Strick]

Ok, Time for me to get my stupid question out of the way. Though I've been a diver for a while, I have been out of it for a bit and I am catching back up with an old favorite sport of mine.
The question: What is DIN and YOKE? Isn't the YOKE standard on tanks in the U.S.?

 

[The Chairman]

I dive DIN... I like it and I like the HP tanks I can use with them. Yokes are "OK", but I just like DIN. Most of my aluminum tank's valves accomodate yokes, but have a threaded insert that comes out to convert them to DIN. My HP tanks only accomodate the DIN fitting. I am definitely in the minority here!

 

[Lost Yooper]

You'll notice that most technical divers use DIN for its more secure connection. A yoke connection is not particulary secure and can be easily bumped on an overhead environment resulting in a catastrophic loss of gas -- a bad thing . Yoke is the more common connection in the recreational "world".

Mike

 

[Strick]

Originally posted by Lost Yooper
You'll notice that most technical divers use DIN for its more secure connection. A yoke connection is not particulary secure and can be easily bumped on an overhead environment resulting in a catastrophic loss of gas -- a bad thing . Yoke is the more common connection in the recreational "world".

Mike

Thanks! Yoke= Recreational & DIN=Tech diver definately makes things alot more understandable. Like I said... stupid question, but you never know unless you ask!

 

[ScubaScott]

Hey Strick - thanks for asking. I was wondering the same thing not to long ago. I'm not sure if anyone ever explained it to me, or maybe she sounded like my wife and I had my selective hearing on. :bonk:

 

[The Chairman]

and also add that the DIN is appropriate for us recreational divers who want more air. I am not a tech diver, yet I use a DIN, as my tanks are High Pressure (3500psi) PST 120s. The Yokes are only rated to 3000psi or 3300psi depending on the manufacturer and whom you listen to. I recommend DIN for anything over 3000psi. BTW, I do own a Yoke to DIN adapter for when I travel and cannot use my personal tanks.

 

[Ontario Diver]

I believe that DIN is required for HP Tanks; Yokes are only good to 3000 PSI (??).

DINs are also a smaller profile and a more secure connection.

 

[Lost Yooper]

I recommend DIN to anyone buying new gear, even if they are currently recreational divers. If you have any inkling of an idea that you may someday venture into tech stuff, you'll already have the regs in DIN. If you get the right valves (Dive Rite, Sea Elite, or Scuba Pro), you would have part of a manifold too because these valves are modular -- meaning you can add to them to get an H-valve or manifold. If you intend on renting tanks, then yoke is the way to go.

Good luck.

Mike

 

[buff]

Once again I agree with Yooper - he's got the right idea on most things-well, except for that lack of clear headedness on the Odin issue!

I don't know why anyone would come up with the yoke design-and it's the most common valve. Why is it so popular? It's weak.

 

[Ontario Diver]

There is yoke because otherwise eggs would only be one colour.

Probably for the same reason that we use VHS rather than Beta, MS WIn instead of IBM's OS/2, Ford Escorts instead of Hummers/Ferraris etc, etc, etc

technical best does not always equate with ease of use, manufacturing costs, market availability, support strucutures

An example may be how come we don't all use HP Steel - most DS's that I know have compressors that only go to 3000 to 3300 psi might be one reason.

I wonder if the yoke fittings were used on WW2 naval aircraft for thier compressed air bottles - that would explain how the early divers would start using them. And then they just kept on being used.

Don't know all the reasons - just have some ideas