Steel vs. Aluminum tanks

[Tigerman]

Ummm......you are horribly misinformed. A 300 Bar DIN male fitting will work in any common DIN valve. The problem is putting a 230 Bar DIN male fitting into a 300 bar valve or manifold...in which you are correct that they will not co-exist.

You can NOT fill a 230 bar DIN valve with a 300 bar DIN fill whip. I tried this only 2 weeks ago myself. It will not thread due to the longer center post...

---------- Post added December 28th, 2013 at 09:15 PM ----------

I don't know of any scuba tanks that are working pressure rated for DIN300 (4400psi), or anyone diving or selling them. DIN230(3442psi) convertables is what I have.

People around here have been known to use small 300 bar steel tanks for twin sets. Theire also frequently used by firefighters

 

[tomfcrist]

That's funny Tigerman, I do it daily with no issues whatsoever.

 

[maniago]

And you live in Norway Tigerman?

 

[Tigerman]

That's funny Tigerman, I do it daily with no issues whatsoever.

I dont call it funny, I call it a big PITA as my nearest friendly firestation just recently upgraded their compressor and now only run 300 bar and my tank has a 230 bar valve

Yes maniago, I am in Norway

 

[maniago]

Yes maniago, I am in Norway

Nice! This sure beats talking by SW. I think you may have a din pillar valve filler setup ala DIN Scuba Fittings

 

[Tigerman]

Only thing I know for sure is that its only just a tiny bit too long to enter the threads of my 232 bar tank valve. I guess I need to find that conversion kit thing that most compressor manufacturers have available.. Or just get my own compressor *drool*

 

[maniago]

Or just get my own compressor *drool*

I bought a compressor, and my wife wasn't all that happy. Two mos later my local LDS shut down unexpectedly and the nearest "free" fills to me are an hour away. Now the compressor is a welcomed addition to our scuba stable. Funny how that works!

 

[Tigerman]

Im not too worried about my wife as Im not married.. Im more worried about my wallet, cause I dont think they come exactly free

 

[maniago]

Im not too worried about my wife as Im not married.. Im more worried about my wallet, cause I dont think they come exactly free

Ah well then, you might want to practice with a wife first, cause a compressor is much more expensive and can be very tempermental and cranky if ignored or treated poorly. And if you're really ham-fisted, well, there will be a divorce. Quite an explosive divorce! haha

 

[drbill]

I used to dive with two HP120 steel tanks. Loved them. Could get 2-3 good dives out of one. Unfortunately, I no longer have either one in a functional state.

One failed its third hydro due to over expansion caused by hot fills at one shop (it was used strictly for shore diving). The other failed VIP due to rust from wet fills on dive boats (it was used almost strictly for boat dives).

Along with these two tanks I've had a neutral buoyancy Al 80 tank that had its first hydro in the 1970s. It is still in service and I bought a second one as well. Great tanks IMHO.