Luxfer - are these scuba tanks?

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Reaction score
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Location
Tasmania, Australia
# of dives
25 - 49
Bought a couple of Fabers and the seller gave me two of these 5.25L tanks (sans valves) as well that they had sitting around for a few years. I haven't been able to identify them beyond the Lux UK stamp so hoping to get help with decoding this and confirming if they are indeed scuba tanks.


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They are 132bar working pressure and 5.25L.... So about 693L or 24cf. With thin walls (due to their low working pressure) and light-ish weight they are going to be buoyant lil sheets - assuming you even try to dive them as a pony bottle or something. Otherwise they are not scuba cylinders
 
Those are CO2 tanks. As others mentioned, could be used with air but not a good choice. Depending on your local industrial gas supplier you might be able to trade those in for something more usable, like oxygen.

I don't know the Australian gas supplier industry and local scuba tank laws/local practices.
 
Well if you wanted to use them as back mounted bottles with a chest mount rebreather or something

you could give them a flush then fill them yourself


As per the Australian Local Practices, at my house;


We used to use them as a lesser than stage bottle across the stomach


Now I use one as a portability high pressure blowing device especially

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With this
 
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BS 5045-8​

Transportable gas containers-Specification for seamless aluminium alloy gas containers of water capacity 0.5 L up to 15 L and up to 300 bar charged pressure at 15°C for special portable application​

Not sure why you posted this since that specification applies to a whole range of cylinders? In this case, their TEST (TP) pressure is 220bar, which makes their working pressure about 130/132bar. (test = 5/3rds working). They are definitely not 300bar cylinders and will almost for sure rupture at those pressures.
 
Well open my blind eyes and make them round yeah I missed TP

anyhow one of my EX Co2 bottles is now an emergency O2 aluminium bottle d size about 165 WP
and another tall I think E aluminium bottle EX beer gas is that the same, is now my helium storage

not that I have any helium
 
https://www.shearwater.com/products/peregrine/

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