NEED info, my HElSER 190 Night Mare

[dave's]

Hay how go's it,?....

i have a HElSER 190,
The tank is stamped:

HElSER 8255228 M8304.

DOT-3AA 4350.

BEUCHAT.
6 B2 98.
49.
The valve is stamped:

BEUCHAT 3/4 npsm.
4400 psi.
service pressure.

I'm trying to find some Offical paper work that shows the Actual psi the tank can be filled to, my local dive shop said they wont fill it past 3000 psi. WHY?

 

[dave's]

im not sure how to get more than one pix in the post so heres another pix.
by the way, Yes its a steel tank, and Belive you me this baby AINT your best friend on thoes long walk in access points, thats what i got my sweet little s80 for LOL.. this thing is NOT light by any means.
Anyway, any info would be appreaciated.
Thanks
Dave.