dsteding
Contributor
Tank Factor:
Rated volume/working pressure (in cubic feet per psi, but it is easier to think in terms of 100 psi, so multiply by 100):
In this case it is 2.9 cubic feet per 100 psi (77/2640)*100.
3.6* 2.9=10.5 cubic feet more, so 87 cubic feet.
Assuming a RMV of .75 and a depth of 60 fsw, this will give you another 4 minutes or so at depth.
Rated volume/working pressure (in cubic feet per psi, but it is easier to think in terms of 100 psi, so multiply by 100):
In this case it is 2.9 cubic feet per 100 psi (77/2640)*100.
3.6* 2.9=10.5 cubic feet more, so 87 cubic feet.
Assuming a RMV of .75 and a depth of 60 fsw, this will give you another 4 minutes or so at depth.