Question regarding HP tank and DIN/YOKE

[LBHeyman]

To sort of piggy back on the OP's question...I now have a yoke connection on my regs...my new tanks have din...how do I make this work? Do I have to buy a new first stage?
I saw the adapter in the picture above but don't know how exactly it would be installed.

 

[deepstops]

To sort of piggy back on the OP's question...I now have a yoke connection on my regs...my new tanks have din...how do I make this work? Do I have to buy a new first stage?
I saw the adapter in the picture above but don't know how exactly it would be installed.

Your local dive shop can install it for you. Just go to the LDS that sells that brand of regulator and tell you need to get it converted to DIN. The DIN kits range from $20 to $60 depending on the model.

 

[PuyallupCoug]

not all HP tanks come with DIN only valves.

a lot of them now days are "convertible DIN/Yoke". which means it's yoke and you unscrew an insert to use it as DIN.

Most of these valves are rated for 3442psi. But they are a perfect match for the new HP 3442psi tanks that Worthing and Faber sell.

see pic. Yoke Insert screws out with a Hex allen wrench on standard DIN threads.

as for regulators, if you want to be able to use DIN, better to purchase a DIN reg and pick up a yoke convertor for $25 to $40 bucks. most new ones are closer to the $40 range but some upwards to $75 for fancier brand name logos on them.

I can't believe I didn't think of this yesterday. Would it be possibly to use my yoke reg with an HP tank at 3400 psi with the yoke insert screwed into the valve like the pic above? That would solve my problem entirely...that is unless the yoke insert was not designed for that kind of pressure.

I think I was overthinking this problem way to much

 

[vicdiver656]

Thanks. I just bought a 4 tanks, and when I asked, they told me the tanks were 3442 PSI. I thought that was 300 bar without calculating it out, but just realized it's only 232! Sorry!

 

[littlejohn]

The yoke insert is so you can use a yoke first stage with the tank.
It will work fine that way. and if you do change to a Din setup, all you have to do is take out the plug.

The two big reasions I changed my first stage from yoke to DIN were
1. Cleaner setup, nothing sticking outthe baqck to bump in an overhead invorment (wrecks / caverns)
2. Much better O-ring setup. A yoke O-ring can blow out, the Din can leak but dosn't blow out.
...The yoak O-ring is sitting out front where it can get nicked or pinched, or just fall out.
... The Din O-ring is in your Reg.

 

[oxyhacker]

A lot of the problem here is that the industry has started calling the 3442 psi tanks "HP". It used to be there was a nice, firm, dividing line. 3500 and above was HP, and needed special "300 bar" valves, and 300 bar DIN regulators. Anything below that could use yoke or combo valves. Now, we got people buying tanks who don't even know what they are buying - a true HP with a funny valve that may not work with their regulator without modification, or an "almost" HP that uses a normal valve and is compatible with a yoke reg. Compounding the confusion is the fact that it is very hard for the novice to tell the difference between a yoke/DIN combo "international outlet" valve with the inserts removed, and a genuine 300 bar valve (hint:look for the little dimple on the back where the yoke screw goes).

We should have taken a tip from the plastics industry and called the 230/3442 tanks "UHMP" - Ultra High Medium Pressure!

 

[mike_s]

I can't believe I didn't think of this yesterday. Would it be possibly to use my yoke reg with an HP tank at 3400 psi with the yoke insert screwed into the valve like the pic above? That would solve my problem entirely...that is unless the yoke insert was not designed for that kind of pressure.

I think I was overthinking this problem way to much

Yep... that's what I was pointing out


Most of the new regulator yokes are made to at least 3500 to 4000 psi. some more. Most likely it's stamped on the side of the yoke (some regs have this, some don't).

but any new reg sold today will definately handle a yoke on a 3442 psi tank

 

[PuyallupCoug]

Yep... that's what I was pointing out


Most of the new regulator yokes are made to at least 3500 to 4000 psi. some more. Most likely it's stamped on the side of the yoke (some regs have this, some don't).

but any new reg sold today will definately handle a yoke on a 3442 psi tank

Thanks Mike, I was looking for a 12 step solution when the answer was on step 2. I told you I was a Thanks again for your help.

 

[ronbeau]

I can't believe I didn't think of this yesterday. Would it be possibly to use my yoke reg with an HP tank at 3400 psi with the yoke insert screwed into the valve like the pic above? That would solve my problem entirely...that is unless the yoke insert was not designed for that kind of pressure.

I think I was over thinking this problem way to much

Yes yoke regulators are fine at 3442 PSI. Save yourself the expense and just use your yoke regulator on your new tanks with the insert left in the Thermo Pro valve.

I dive that way all the time. I dive with Worthingto HP 100s and a yoke Atomic B2 regulator.

 

[mike_s]

One last thing to add..... by having the convertible valve (DIN/Yoke) over just a Yoke valve, your tanks will be a little more "desired" if you ever try to sell them.

Because you can sell them to folks who want YOKE, or folks who want DIN, or folks who have Yoke and intend to upgrade to DIN later....