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Andy Schmidt wrote: > > The "inflation restriction" would be caused by the elastic force of the > bungee - which is not effected by depth! > > Your first stage delivers air through the inflator hose at 140 - 160 pounds > for every square inch, ABOVE ambient pressure - in other words: it's > virtually constant at ANY depth within the operational range of the > regulator. If the force of the bungees is less than 140 - 160 psi (e.g. the > bladder inflates fully at 1 ft) - then it will also inflate at 100 feet > (given enough air) > > For bungees to effect the ability of the bladder to fully inflate, they'd > have to be stronger than 4 - 5 car tires (30 to 40 psi). Andy: The intermediate pressure of your inflator hose has nothing to do with the issue. The issue is whether or not the overpressure relief valve on the bottom of the wing will release before the bungee allows the wing to fully inflate. The force of the bungee cords only needs to exceed the tension in the little spring in your overpressure relief valve to prevent full inflation of the wing. If your overpressure relief valve goes, you will be squirting air into the BC and it will be squirting right back out through the overpressure relief without inflating the wing. Perhaps someone can tell us at what pressure a typical BC overpressure relief valve will go at. I imagine it's not more than a few PSI though as I can blow mine out with the force of my own lungs. Tug on the little string on your dump valve and tell me if it takes 140 lbs of effort to budge that spring ;-) -Kent -- Send mail for the `techdiver' mailing list to `techdiver@aquanaut.com'. Send subscribe/unsubscribe requests to `techdiver-request@aquanaut.com'.
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