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--=====================_182652743==_.ALT Content-Type: text/plain; charset="us-ascii"; format=flowed Paul, > The idea of having a three piece system is that the threaded porion >sliding on the o-ring shaft, exerts no "screwing" force upon the mating >surfaces of the o-ring or the din sealing "bed". This is understandable and I dare say desirable, but the force that is exerted by hand-tightening a plug cannot amount to much. >With a one piece system, when the o-ring mates to the sealing surface within >the DIN valve, this causes the o-ring to be repeatedly screwed in and out >with the pressure of the sealing process (although minimal) this >theoretically could cause the o-ring to wear prematurely and even possibly >bind with excessive corrosion... Are not o-rings visually inspected every time we pick them up. Remember it is also theoretically possible to eat enough bad Mexican food that one could flatulate (not really a correct word, but you get to point) hard enough to lift off the ground. > "it gives you a warm fuzzy feeling" Many warm fuzzy feelings are good things. >I was unsatisfied by the standard plastic items available within the local >diving industry and therefore decided to do something about it and set a new >precedent of quality ,whereas before there was none... None where you had looked. I agree the plastic sucks, but this idea is not original to you. Kudos for the initiative of running with your version of it though. >I am just supplying the best product I can think of to do the job, as down >here in NZ as we don't have the luxury of going to the local hardware >store...everything like needs to be custom made. I suppose for most it will come down to cost and availability. What will yours cost us and how long does it take to ship from NZ. Scott Hunsucker --=====================_182652743==_.ALT Content-Type: text/html; charset="us-ascii" <html> Paul,<br> <br> <blockquote type=cite cite> The idea of having a three piece system is that the threaded porion<br> sliding on the o-ring shaft, exerts no "screwing" force upon the mating<br> surfaces of the o-ring or the din sealing "bed".</blockquote><br> This is understandable and I dare say desirable, but the force that is exerted by <i>hand-tightening </i>a plug cannot amount to much.<br> <br> <blockquote type=cite cite>With a one piece system, when the o-ring mates to the sealing surface within<br> the DIN valve, this causes the o-ring to be repeatedly screwed in and out<br> with the pressure of the sealing process (although minimal) this<br> theoretically could cause the o-ring to wear prematurely and even possibly<br> bind with excessive corrosion...</blockquote><br> Are not o-rings visually inspected every time we pick them up. Remember it is also <i>theoretically</i> possible to eat enough bad Mexican food that one could flatulate (not really a correct word, but you get to point) hard enough to lift off the ground.<br> <br> <blockquote type=cite cite> "it gives you a warm fuzzy feeling"</blockquote><br> Many warm fuzzy feelings are good things.<br> <br> <blockquote type=cite cite>I was unsatisfied by the standard plastic items available within the local<br> diving industry and therefore decided to do something about it and set a new<br> precedent of quality ,whereas before there was none...</blockquote><br> None where you had looked. I agree the plastic sucks, but this idea is not original to you. Kudos for the initiative of running with your version of it though.<br> <br> <blockquote type=cite cite>I am just supplying the best product I can think of to do the job, as down<br> here in NZ as we don't have the luxury of going to the local hardware<br> store...everything like needs to be custom made.</blockquote><br> I suppose for most it will come down to cost and availability. What will yours cost us and how long does it take to ship from NZ.<br> Scott Hunsucker<br> <br> </html> --=====================_182652743==_.ALT-- -- Send mail for the `techdiver' mailing list to `techdiver@aquanaut.com'. Send subscribe/unsubscribe requests to `techdiver-request@aquanaut.com'.
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