Din or yoke?

[Tortuga68]

What he said

In SE Asia & Australia most shops are using convertible valves now, and on the rare occasion where they haven't in my experience, they'll loan you an adapter (pays to ask in advance of course).

I only own DIN regs and don't have an adapter of my own, never missed a dive yet.

 

[Bob DBF]

Could be... I would love to see a picture of that. Most that I have are marked 200 bar. I have heard of 240 bar yokes as well as 230 bar DIN... but I just haven't seen the former, though the converta-valves are all rated 230 bar for the DIN.

The Yoke is massive and shorter than on most other regs which is sometimes annoying using it with newer valves which are larger than the ones back then, It won't work with the convertable DIN/Yoke valves because it cannot fit around them.

The limiting factor for the pressure used in SCUBA was never the valve, first it was the limitation of tank pressure, and next it was the problems from using a yoke designed for 2250# service. Sherwood designed the reg for a tank that still is not made for SCUBA. Sherwood got into the SCUBA industry because they manufactured industrial HP gas fittings, and at one time manufactured most scuba regs and valves for other companies, so I believe that the Yoke connection would be fine for at least 4000# service. The problem with a Yoke connection is whether the user insures the proper yoke is used for the service pressure he is using.



Bob
-----------------------------------------
There is no problem that can't be solved with a liberal application of sex, tequila, money, duct tape, or high explosives, not necessarily in that order.

 

[The Chairman]

What a cool pic Bob. Thanks for sharing. I don't think anyone knows it all and that especially includes me. The best part about ScubaBoard is that a lot of misinformation gets debunked with facts. I was looking at my tanks yesterday and found that almost all the old style valves all had 200 bar stamped on them. Few of the newer converti-valves had anything stamped on them, though a couple had 232 bar. I do have six yokes with 200 bar stamped on them and plenty with no info at all.

O-ring sealing is pretty straightforward, albeit it can be compromised with carelessness. On either yoke or DIN it requires the mating surfaces to be against each other (metal to metal), to be aligned properly and for the o-ring to be slightly compressed. A thicker o-ring is not needed for the pressures Scuba tanks are subjected to, but the thicker DIN seems to be more forgiving for a less than optimal mating. Also, there is less chance of distortion of the alignment should the tank land on it's valve. However, I have had my DIN valves slightly bent when coming back from the air fill. A quick clean up with a tap sets that right and cleans out any corrosion that is starting to build up as well. It's my opinion that most yoke valve o-rings get hurt when divers don't open up the yokes enough causing the mating surface of the valve to nick the o-ring as it is being slid over the valve. This just doesn't seem to happen as much with DIN as the o-ring is aligned with it's mating surface well before it comes in contact.

 

[RDRINK25]

I have decided to get my new reg and am 98% of going with DIN. My only concern is I am purchasing a Ti reg and was wondering if there are any concerns with using a brass or steel adaptor?

 

[JohnN]

I have decided to get my new reg and am 98% of going with DIN. My only concern is I am purchasing a Ti reg and was wondering if there are any concerns with using a brass or steel adaptor?

OK, I'll bite. Why Titanium ? Too much money in your pockets bothering your buoyancy?

 

[RDRINK25]

OK, I'll bite. Why Titanium ? Too much money in your pockets bothering your buoyancy?

Honestly, I travel alot and have to carry 2 sets of regs in a backpack for one reason. Not too mention camera and other gear so it being only 1.5lb is nice. Another is I like not having to worry about rinsing it off immediately. I like the 3 yr service schedule of the T3 and I got one heck of a deal on it. Back to what about an adaptor would it have to be Ti?

 

[Lorenzoid]

Honestly, I travel alot and have to carry 2 sets of regs in a backpack for one reason. Not too mention camera and other gear so it being only 1.5lb is nice. Another is I like not having to worry about rinsing it off immediately. I like the 3 yr service schedule of the T3 and I got one heck of a deal on it. Back to what about an adaptor would it have to be Ti?

As I understand it, only the body is made of titanium; there are still other parts that are not made of titanium and are as susceptible to being impaired by salt deposits as they would be in any other regulator.

 

[RDRINK25]

As I understand it, only the body is made of titanium; there are still other parts that are not made of titanium and are as susceptible to being impaired by salt deposits as they would be in any other regulator.

True but it sealed. I am not saying I dont rinse my gear as I thoroughly clean everything but it is nice to know all I need to do is rinse and run.

 

[halocline]

Back to what about an adaptor would it have to be Ti?

No, but having to carry an adapter just blew your minimal weight savings that you paid extra hundreds of dollars for. What are you doing, carrying gear up a mountain? Couldn't you have saved a few ounces another way, like by carrying a smaller bottle of shampoo? Oh well, look on the bright side, you made a dive shop owner happy.

DIN/yoke, tomato/tomato (that doesn't really work in print, does it?) each works fine, if they didn't, they would not each be used on several thousand dives every day of every week world wide for decades.....for technical diving in an overhead, DIN is considered the standard, but otherwise it's really about convenience.

Using a DIN/yoke adapter pretty much means you get the worst of both worlds, not the best. Sorry!

Oh yeah, I must also apologize because while I did answer your question in the very first word of my reply, I then launched into a rant you didn't ask for. So, sorry again!

 

[RDRINK25]

No, but having to carry an adapter just blew your minimal weight savings that you paid extra hundreds of dollars for. What are you doing, carrying gear up a mountain? Couldn't you have saved a few ounces another way, like by carrying a smaller bottle of shampoo? Oh well, look on the bright side, you made a dive shop owner happy.

DIN/yoke, tomato/tomato (that doesn't really work in print, does it?) each works fine, if they didn't, they would not each be used on several thousand dives every day of every week world wide for decades.....for technical diving in an overhead, DIN is considered the standard, but otherwise it's really about convenience.

Using a DIN/yoke adapter pretty much means you get the worst of both worlds, not the best. Sorry!

Oh yeah, I must also apologize because while I did answer your question in the very first word of my reply, I then launched into a rant you didn't ask for. So, sorry again!

Sorry but an adapter can go in the checked bag and I am not worried about a baggage handler taking that. Did I ask you if you thought paying X amount of dollars is a smart buy for a reg? You have some other issues going on that you must jump in and offer no help whatsoever!

Can anyone tell me if using a Ti 1st stage and a brass adapter will be harmful other then 2 un-similar metals bonding. Which I have heard can cause rust faster?