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            <div>Most electric actuators are ip65 or ip66, so they can be sprayed with water.  You can get ip69 rated so they can be submerged is all.  I am making a version that can handle 500 feet without extra compensating.  The actuators will be under a constant internal pressure all the time.  The internal pressure is not to prevent leakage but rather to reinforce the light body.  I will put one in my chamber and see if the internal pressure is actually needed.  I am just planning ahead and expect to add air.</div><div>Hank</div><div><br></div>
            
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                        On Wednesday, October 4, 2017, 10:05:49 PM MDT, Alan via Personal_Submersibles <personal_submersibles@psubs.org> wrote:
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                    <div><div id="yiv0740715597"><html><head></head><div><div>Brian,</div><div>can't remember off hand but I don't recall them being able to be</div><div>submersed too far. They are regarded as waterproof!</div><div>We had a good look at the Lenco trim tab actuator a number of</div><div>years ago, with Frank giving a talk on electric linear actuators at a </div><div>Psub conference.</div><div>I fibreglassed over one & oil compensated it. I was going to mount a rubber </div><div>boot over the piston, but gave up on it.</div><div>Hank is looking at making up his own compensated actuator for</div><div>an electric manipulator. ( hope that wasn't a secret Hank) </div><div>Alan</div><div><br clear="none"><div>Sent from my iPad</div></div><div class="yiv0740715597yqt5597641116" id="yiv0740715597yqt53298"><div><br clear="none">On 5/10/2017, at 4:15 PM, Brian Hughes via Personal_Submersibles <<a rel="nofollow" shape="rect" ymailto="mailto:personal_submersibles@psubs.org" target="_blank" href="mailto:personal_submersibles@psubs.org">personal_submersibles@psubs.org</a>> wrote:<br clear="none"><br clear="none"></div><blockquote type="cite"><div>

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The electric version. Anyone know if they'd be water proof at depth?<br clear="none">
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Get <a rel="nofollow" shape="rect" target="_blank" href="https://aka.ms/ghei36">Outlook for Android</a></div>
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<blockquote type="cite"><div><span>_______________________________________________</span><br clear="none"><span>Personal_Submersibles mailing list</span><br clear="none"><span><a rel="nofollow" shape="rect" ymailto="mailto:Personal_Submersibles@psubs.org" target="_blank" href="mailto:Personal_Submersibles@psubs.org">Personal_Submersibles@psubs.org</a></span><br clear="none"><span><a rel="nofollow" shape="rect" target="_blank" href="http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles">http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles</a></span><br clear="none"></div></blockquote></div></html></div><html><div class="yqt5597641116" id="yqt80619"><body>_______________________________________________<br clear="none">Personal_Submersibles mailing list<br clear="none"><a shape="rect" ymailto="mailto:Personal_Submersibles@psubs.org" href="mailto:Personal_Submersibles@psubs.org">Personal_Submersibles@psubs.org</a><br clear="none"><a shape="rect" href="http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles" target="_blank">http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles</a><br clear="none"></body></div></html></div>
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