Australia Tanks in USA???

[almitywife]

i agree with BigChris.... the ebay market for tanks is weird and it seems buyers dont do their homework or know about that WA store.

Fish - are you on the froggie boat on Sunday??

 

[knotical]

An additional issue if there’s ever a chance the valve needs to be replaced:
From: http://www.fillexpress.com/library/valves.shtml

One important caution regarding thread compatibility. Outside the United States, particularly in Europe and Australia, a widely used SCUBA Tank neck thread form is known as M22. The NPS and M22 threads are very similar but not identical; it's possible to inadvertently mate cylinders and valves with these two different forms. However, when the cylinders are filled to working pressure, the different threads may not hold, causing the valve and cylinder to separate with dangerously explosive force. For this reason, it is unwise to transport NPS threaded valves outside of the U.S. or to bring international M22 threaded valves into the U.S.

 

[oxyhacker]

They aren't indentical tanks, that's just the problem. While they may look the same, different countries may require different alloys or heat treatment.

There are committees actively working on new ISO and UN standards for an "international" metic tank specification which the US is considering adopting once it is finalized, but it is a slow process. It would be for a higher peformance tank than current DOT-specs allow, and could be requalified by ultrasonic inspection rather than hydrotesting.

Jeez, whatever happened to that ISO 9000 stuff? Its an Italian company manufacturing identical tanks god knows where. Then they stamp different markings on them based on the country of sale?

It all sounds a bit anal and inefficient to me.

 

[rjack321]

Jeez, whatever happened to that ISO 9000 stuff? Its an Italian company manufacturing identical tanks god knows where. Then they stamp different markings on them based on the country of sale?

It all sounds a bit anal and inefficient to me.

ISO 9000 is not relevant to the US by and large. We have our own way of doing things. Our regulations are obtuse and its difficult to know where to find specific information about cylinders (in general) unless you're in the field.

Shoot, many people even in the scuba industry have all sorts of misconceptions about plus ratings, the similarity between EU and US tanks (even when both are made by Faber), rated pressures, threading, burst disks, etc. etc.

Maybe someday in the distant future we'll have a more "universal" standard for tanks. Doubtful, there's a heck of alot of "inertial" in the existing regulatory framework.

Which all brings up a good point. I seriously doubt you can find an M25 valve with the US required burst disks. Even if you could somehow get the tanks re-qualified.