Stupid Question about 120 HP Steel Tank

[mheaster]

I have a STUPID Question:
(Yeah, I have heard there is no stupid questions, BUT I can come up with a few!)

I have recently bought a HP Steel 120 Cu Foot Tank. It came with a DIN Valve. All my regs are Yoke. I know! I will likely eventually go DIN but . . . .

Can a Yoke valve be used on a HP (3500) tank? Can I use my Yoke regulator on it? Can I have it filled to 3500 PSI (assuming it has current VIS and Hydro)?

Will it affect my 1st/2nd Stage? Do they need to be adjusted to higher pressure and can I switch back and forth between the HP 120 and my current aluminum 80's?

Should I leave the DIN on tank and get an adapter OR change the tank valve?

My regulator (the XS Scuba Tri-Metal) comes standard with a 4000 PSI Yoke. But as I have read so far that JUST means the yoke and screw is just a bit heftier than others . . .?

THANKS!

 

[cmalinowski]

Not stupid at all. In fact, it was asked a few days ago:

Other thread

Since I don't know much about your particular valve, I can't truly speak with authority. I use DIN now... although I did fill my PST's to 3500 when I had yoke.

Chris

 

[The Natural]

I'd just get a DIN converter for your regulator.

 

[HarleyDiver]

If it is a 3500 psi as opposed to the new 3442 psi tanks, it will have a 7 thread DIN that will not accept a plug. Yolks will work on a 5-thread DIN that has a plug installed.

The 3500 psi 7 thread DIN valves are also known as 300 BAR, while the 5 thread valves are referred to as 200 BAR (or 232).

 

[mossym]

if you're only going tob e diving these tanks, or at least diving them most of the time, why not jsut swicth your reg over to din right now?

 

[jroy017]

give us the valve thats on it (count the number of threads in it as well ) and give us the tank company an d fill pressure . But yeah easiest will be to convert your reg to 300 bar an adapter of around 35$. (unless you have a 230 bar reg wich is possible so give us the reg as well !)

 

[drbill]

To answer the other part of the question, some regs are not rated at 3,500 psi (one of mine for example). The one I have is rated at 3,000 psi. It is an older ScubaPro Mk10/G250 that was converted to DIN from yoke.

To be 99.99% safe, you should make sure the reg is rated at the higher pressure as well.

I use tanks with DIN valves that are fill-rated at 3,300 psi (older Al tank) and 3,500 psi (HP 120). The 5- and 7-thread valves do make a difference.

Dr. Bill

 

[CD_in_Chitown]

If you convert your reg as advised make sure and find a 300 bar DIN kit. You can use a 300 bar reg on a 232 bar tank valve, but not vice versa.

 

[SCUBA-J]

If you convert your reg as advised make sure and find a 300 bar DIN kit. You can use a 300 bar reg on a 232 bar tank valve, but not vice versa.

300 bar will work with a 232 bar valve , you are fine