Need Help Converting to DIN

[Foz@TalkingScuba]

Okay everyone, I am considering moving to DIN connections. I use HP steel tanks; 100s and 119s. They have a working pressure of 3442 psi and have 200 DIN connectors with yoke adapters. I have read a lot of conflicting opinions on 200 vs 300. Will 200 bar be fine for the tanks listed? Also, will a reg with a 300 DIN connector fit in a 200 DIN? Thanks for all the help.

 

[DA Aquamaster]

Yes, 200 bar is perfect and 300 bar DIN regs work just fine in a 200 bar DIN valve.

The 300 bar valve is 7 threads deep in order to prevent a lower pressure 200 bar reg from sealing in it. However nearly all regs are now designed to work at 300 bar pressures so that protection is not really needed.

And in the US, we don't use a full 300 bar anyway (4350 psi) and 3600 is about the limit most places.

The 200 bar valve is just as strong as the extra 2 threads of the 300 bar valve don't add strength, they just add length for the reason stated above.

The 300 bar valve is also more prone to damage if the tank falls over as most of the extra length is not supported by much metal.

The 200 bar valves can also be converted to use a yoke with a suitable insert, so the bi-sexual nature of the valve makes it more flexible if your reg preferences change over time.

 

[muddiver]

The threads on a 300 bar DIN are different than the threads on a 200 bar DIN fitting. They are not ment to be interchangable.

If I remember correctly, 200 bar is the U.S. standard and 300 bar is the European standard. If you go with the wrong one you will have a hard time finding a regulator that will fit, correctely.

 

[Jim Lapenta]

Why then are my 85's 300 bar? Damn Dive Rite manifold! I got one that was supposed to go to Europe!

Seriously the main difference is that a 300 bar fitting will not take a standard insert to use a yoke reg. All of the manifolds that one tech shop here uses are 300 bar.

The threads are the same, the 300 is just deeper.

 

[Foz@TalkingScuba]

I appreciate everyones feedback. After Reading the responses, and researching other sites, I have made my decision. I will run 200 bar valves on my HP steels and a couple negative AL80s. I will be hooking up a Dive Rite RG 3100 DIN regulator with a converted Zeagle FH6 as my spare. I will also keep the yoke connector for travel. Does this sound feasible? Thank you.

 

[Jimmer]

I appreciate everyones feedback. After Reading the responses, and researching other sites, I have made my decision. I will run 200 bar valves on my HP steels and a couple negative AL80s. I will be hooking up a Dive Rite RG 3100 DIN regulator with a converted Zeagle FH6 as my spare. I will also keep the yoke connector for travel. Does this sound feasible? Thank you.

Absolutely, sounds like an ideal setup. I use FH6's as my doubles regs, and all 3 sets of doubles I own use 200 bar manifolds.

 

[spectrum]

For travel I'd consider refitting the regulators with true yoke parts. See how it works with your regulators. Some get obnoxiously long when the yoke adpater is scabbed onto the permanent DIN connector.

 

[muddiver]

Why then are my 85's 300 bar? Damn Dive Rite manifold! I got one that was supposed to go to Europe!

Seriously the main difference is that a 300 bar fitting will not take a standard insert to use a yoke reg. All of the manifolds that one tech shop here uses are 300 bar.

The threads are the same, the 300 is just deeper.

Ok, if they are interchangable, why are there two designations?

 

[Jax]

Ok, if they are interchangable, why are there two designations?

The 200 bar male end will not screw into the 300 bar female far enough to stop it from leaking.

That way, you won't use a lighter-pressure 200-bar DIN with a tank filled above 200 BAR.

However, the 300 Bar male will screw into the 200 BAR female and seal and work just fine.



No jokes, please . . . . :chuckle:

 

[Jim Lapenta]

Anyone else saying this would be no big deal. But coming from Jax? Kinda got me excited. Did you type this in your husky voice?

The 200 bar male end will not screw into the 300 bar female far enough to stop it from leaking.

That way, you won't use a lighter-pressure 200-bar DIN with a tank filled above 200 BAR.

However, the 300 Bar male will screw into the 200 BAR female and seal and work just fine.



No jokes, please . . . . :chuckle: