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Tony- IMHO I think that this isolator thing is something you can get fixated on while missing the big picture. I am trying to picture a scenario in ocean diving where you would need the isolator- - Your valve fell apart (avoidable by proper maintenance.) - You hit something so hard you snapped off your DIN and broke your valve wheel (avoidable by not diving off of waterfalls or improving your scooting technique.) - Your valve oring fails (this would be a slow leak, plenty of time.) - Your burst disk fails (double those bad-boys up.) Seems to me if you fuck with your valve so it can't open up all the way you might screw up PP fills as it would not let the gas moves as freely into both tanks. Jim On 3/29/98 3:19 PM Tony Phillips wrote: > Jim >Just a thought but it really wouldn't be difficult with many isolator >assemblies >to pack the valve stem so that it would only open say 2 or 3 (or whatever) >turns. >That way the valve could be "fully open" by feel but would be much faster >to shut >down. One would obviously need to make sure that in the full open position >the >gas flow would be adequate - say a little over half the requirement for a >diver >working hard since the diver. >Have been kicking this idea around for a while. Any comments? >Tony Phillips ------------------------------------------------------------------- Learn About Trimix At http://www.cisatlantic.com/trimix/trimix.html -- Send mail for the `techdiver' mailing list to `techdiver@aquanaut.com'. Send subscribe/unsubscribe requests to `techdiver-request@aquanaut.com'.
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