FX 500 Air tank numbers?

[jking]

Any Luxfer experts out there that can tell what these numbers mean on my FX's tank? I'm guessing the 375bar (5438psi) might be the pressure it was hydro'd to. PH? The 250bar maybe 250 pressure working?? Again, just a guess. The reason I'm asking is that once my FX was regulated can it be filled to a higher pressure like 230-250? Was wondering if the limitation of 200bar as stamped on the gun was due to valve locking filling to higher pressures.
Jimmy

 

[weatherby]

You're right, the bottles are tested at 375 bar, work pressure is 250 bar.
Because your gun is regulated, you can fill upto 250 bar, just like the factory regulated Boss.
The SWP of my Bobcat MK2 .25 was also 250 bar. The 500cc bottles and 40mm tubes can handle it, keep in mind that the 400cc bottle has a lower SWP than the 500cc bottle.

 

[jking]

Thanks, good to know. I'm just looking at 230 or so.
Jimmy