Help me understand the # on a tank

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Green_Manelishi:
Buy STEEL. It's more expensive (probably) but worth it.



steel tanks are way out of my price range at this point.
i can get 2 used 80 AL tanks for less then 100$ and they are
only 6 years old ....

that sounds like a good deal to me :)
 
I agree go with the steel, a bit more money, alot more benefits. Try Craigslist.com also, it's like a web classified ad and you can find gear there at a good price from time to time.
 
I'm curious about one of my aluminium tanks. It is rated at 3300 PSI. How many 3AL tanks are rated to that pressure these days? Employees at the two LDS'es on the island thought at first it was steel (the DIN valve may have confused them) and so did I until I read the code.

Doc
 
Not very many. I believe Luxfer currently makes a neutral 80 that is filled to that pressure.
 
Just an FYI for anyone in the Boston area looking for steel tanks. If you see one you like at your LDS, buy it now !! Not only are the PST steel tanks not availaible, but now the Fabers are also gone. The two companys that distibute Fabers are going to be all out of them for at least a few monthes. So what's at the stores now, is going to be it for a while.

Paul
 
drbill:
I'm curious about one of my aluminium tanks. It is rated at 3300 PSI. How many 3AL tanks are rated to that pressure these days? Employees at the two LDS'es on the island thought at first it was steel (the DIN valve may have confused them) and so did I until I read the code.

Doc

Is it an AL80 or an AL100? I just bought a 100 ft³ Luxfer, and it's rated for 3300.
 
Thanks Lubold8431- I can't read the manufacturer's code on the tank. I "inherited" it from a diver who had to retire due to age.

Firefyter- I initially thought it was a 100, but based on the bottom time I get it must be an 80. I get 50% more bottom time with my HP120.

Doc
 
drbill:
Thanks Lubold8431- I can't read the manufacturer's code on the tank. I "inherited" it from a diver who had to retire due to age.

Firefyter- I initially thought it was a 100, but based on the bottom time I get it must be an 80. I get 50% more bottom time with my HP120.

Doc

Catalina also makes 3 aluminum cylinder models rated to 3300. C-series 60, 80 and 100 models are all 3300. They are actually slightly negative when empty like steel.

If anyone wants to see the specs on them them go to http://www.catalinacylinders.com/
 
Sure sounds like an AL100. If it is Large and Heavy then it's a 100. A steel 120 probably weighs less than the Luxfer 100, and I'm sure the other brands.
 
LUBOLD8431:
Not very many. I believe Luxfer currently makes a neutral 80 that is filled to that pressure.

Yup - I've got a pair of those neutrally buoyant tanks. As well as the the 3300 service pressure stamped on them, they are say S80N.

I recall someone telling me once about Catalina "Super 80's" as well.

On another note, does anyone know where I can find a list of the manufacturer codes?

Marc
 

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