Quite an informative and at times entertaining post. Great thing about SB.
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I LOVE that place!! Owner is very cool fellow.
If I fill a set of LP80's (rated 2460) to 3200psi, I get 208.2 cubic feet of gas on a fill.
Exceeding working pressure decreases the total (10000) fills you can expect before failing the hydro. Ihave spoke to my hydro guys and they say my tanks recover fully. not 97% but fully.
Can you explain your formula or was that a typo?
(Actual Fill/Rated Fill * Rated Volume or (3200/2640)*80 = 96.96 cu ft)
** 2400+10% would be 2640 at 80 cu ft **
Doubles would still only give me 193.92 cu ft.
2460
yESW THER ARE SOME I WOULD HAVE TO LOOK IN MY psi MANUAL FOR THE DATES DN PLACES.. oops
Your hydro guys are wrong.
Since the thread Scuba Cylinder explodes in the AI, which as you know I participated in, I've been doing a ton of investigations which I'll start another thread on soon.
However, as stated in that thread. A hydo test stretches the tank - The tanks can only stretch so far, and must then return back to dimension. This dimension is greater than the starting size. The tanks never go back to their original size.
I think you are being too picky on the comment for its intent. I over fill my tanks. they recover lets say 99.9 % of the expansion. for lay people they recover fully. The over filling and reduction of the 10.000 fills i got from faber them selves, not the hydro guys. I dont think there is anyone that believes that anything is possible of FULL 100% absolute recovery. That conversation with the hydro guys was started because of attempting to get a + rating on hte tank. They said they do not do + stamps. Apparently the + is a scuba thing and they don't do them, as their main business is not scuba tanks.