Tank Question

[oxyhacker]

DOT doesn't use BAR, at least on 3AA tanks. So somewhere on those garbled, 3rd hand markings we are trying to decipher at long range, it says the US working pressure, almost certainly 3000 psi, and that's what the "+" refers to, since it's a DOT thing. The BAR only applies to the TC, M-for Metric, rating.

I do find it very strage that it has a "+" sign after the hydro date. As mentioned before, that implies that it can be filled by 10% above the stamped pressure. Since the stamped pressure is 230 Bar (3336 psi) this would mean that it could be filled to 253 Bar (3670 psi).
Something doesn't seem right about that, but maybe it is.

 

[roakey]

Me thinks this is a Canadian metric tank which was accidentally hydro stamped with a plus somewhere.

The fact that it has an REE stamped on it means that it can be + rated.

But it is weird.

Roak