MK2 Din M26 to US conversion

[uncfnp]

I have an MK2 with a M26 din (European nonsense and don't ask why ) deco first stage that I want to change to a "normal" din connection. I have a spare MK10 din. Will this work? Or will I need an MK2 specific din? Or will none of them work because the european first stage body is incompatible period and I will have to use an adaptor?

Thanks

 

[abnfrog]

if you want a yoke conversion I have a couple

 

[guruboy]

Mk10 might be too old. Not sure.

just buy a ScubaPro universal din conversion kit. I've seen them go for about $30.

 

[uncfnp]

Mk10 might be too old. Not sure.

just buy a ScubaPro universal din conversion kit. I've seen them go for about $30.

Thanks for the info. The universal din looks pretty much identical to my MK10 din. But looking at it, the MK2 is not listed as compatible. That led me to do a search just for a MK2 din. Looks like it might be a different din and runs around 75. My best option may be to watch ebay for a cheap MK2 din.

Looking at the pictures, both din conversion kits above look the same. I removed the current M26 din and the section that fits into the body has an oring that the MK10 din and the universal kit do not have. Checking the MK2 schematic there is indeed a din to body oring.

 

[halocline]

The MK2 DIN or yoke retainer seals with a 015 o-ring around the shaft of the retainer, the MK10 uses a 011 on the end of the retainer. The current (last 10 years, maybe) retainers, post MK20 recall, are the 'universal' retainers which means they have journals (grooves) for both the 011 in the end and the 015 part way up the shaft. So you can use those on MK2, 10, 15, 20, 25.

So if your MK10 DIN retainer looks identical to a universal retainer, it should work fine. I don't know what extra o-ring you're referring to in the DIN that you took out; I guess it would either be the one that seals the retainer to the body, which of course you will need, or an additional o-ring that just holds the wheel in place when it's not on a regulator. I think someone (maybe guruboy on his thread) posted a recent photo of a DIN retainer that had one.

I'm not exactly clear on why the euro DIN retainer would fit a different valve, though. I thought that the difference in European tanks was a difference in tank neck threads, not in the DIN threads. I guess I've learned something new.

 

[uncfnp]

Thanks @halocline and @guruboy. Its hard to tell from the online photos but if the universal din has the groove for the shaft oring thats what I need.

Halocline. As usual I did not express myself well. Its not an extra oring but the oring on the shaft that I was referring to and that is not present on the MK10. Good to know its an 015. Thanks again.

I don't suppose there is a way to just add that oring to the MK10?

And yes, I learned someting new too after I bought this MK2. Here is some info on the M26 initiative. The M26 has a slightly larger diameter connection. Seems its required for any mixes greater then 21% so that a diver can not mistakenly connect a nitrox reg to an air tank or an air reg to a nitrox tank. I wonder how our European cousins have managed to deal with this?

The M25 / M26 saga! What Does It All Mean?

 

[rhwestfall]

I have used the "Universal" SP DIN on my MK-2 with success...

 

[uncfnp]

Universal din ordered. Thanks guys.

 

[chrisch]

...
And yes, I learned someting new too after I bought this MK2. Here is some info on the M26 initiative. The M26 has a slightly larger diameter connection. Seems its required for any mixes greater then 21% so that a diver can not mistakenly connect a nitrox reg to an air tank or an air reg to a nitrox tank. I wonder how our European cousins have managed to deal with this?..

It is nonsense. So we ignore it. DIN is G5/8 and suitable for any gas you like to put through it

 

[ams511]

I bought 6 DIN adapters when they were on Amazon for $28.50 from Dolphin Scuba. The part number is 10.045.030 and the writing on the label says: "KIT CONV. INT/DIN 300 MK 2/MK 25".