<html><body><div style="color:#000; background-color:#fff; font-family:HelveticaNeue, Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif;font-size:16px"><div id="yui_3_16_0_1_1431554403395_5814"><span id="yui_3_16_0_1_1431554403395_5813">Answering my own thread here, but the dual spring loaded lip seal only seems to be in </span></div><div id="yui_3_16_0_1_1431554403395_5814" dir="ltr"><span id="yui_3_16_0_1_1431554403395_5865">the low pressure range. It is 2 seals combined, so there is a gap in between that would</span></div><div id="yui_3_16_0_1_1431554403395_5814" dir="ltr"><span id="yui_3_16_0_1_1431554403395_5923">fill up with sea water from outside & oil from inside in an overpressure situation.</span></div><div id="yui_3_16_0_1_1431554403395_5814" dir="ltr"><span id="yui_3_16_0_1_1431554403395_6052">A sales rep suggested that for my application with oil compensation, I just go with a low pressure $6- seal.</span></div><div id="yui_3_16_0_1_1431554403395_5814" dir="ltr"><span id="yui_3_16_0_1_1431554403395_6072">Which begs the question, "why do they bother having a double lipped seal for separating</span></div><div id="yui_3_16_0_1_1431554403395_5814" dir="ltr"><span>fluids if a single lipped seal would do"?</span></div><div id="yui_3_16_0_1_1431554403395_5814" dir="ltr"><span>Alan</span></div><br> <div style="font-family: HelveticaNeue, Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif; font-size: 16px;" id="yui_3_16_0_1_1431554403395_5837"> <div style="font-family: HelveticaNeue, Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif; font-size: 16px;" id="yui_3_16_0_1_1431554403395_5836"> <div dir="ltr" id="yui_3_16_0_1_1431554403395_5835"> <hr size="1" id="yui_3_16_0_1_1431554403395_5834"> <font size="2" face="Arial" id="yui_3_16_0_1_1431554403395_5838"> <b><span style="font-weight:bold;">From:</span></b> Alan via Personal_Submersibles <personal_submersibles@psubs.org><br> <b><span style="font-weight: bold;">To:</span></b> Personal Submersibles General Discussion <personal_submersibles@psubs.org> <br> <b><span style="font-weight: bold;">Sent:</span></b> Thursday, May 14, 2015 7:43 AM<br> <b><span style="font-weight: bold;">Subject:</span></b> [PSUBS-MAILIST] Seals<br> </font> </div> <div class="y_msg_container" id="yui_3_16_0_1_1431554403395_6053"><br>Anyone familiar with the opposed dual spring loaded lip seal for the separation<br>of two fluids?<br><a href="http://www.ceetak.com/wp-content/uploads/2011/05/Ceetak-Rotary-Shaft-Seals-Brochure.pdf" target="_blank" id="yui_3_16_0_1_1431554403395_6054">http://www.ceetak.com/wp-content/uploads/2011/05/Ceetak-Rotary-Shaft-Seals-Brochure.pdf</a><br>It "seems" the ideal seal for an oil compensated thruster, where you are keeping water out & oil in. Am trying to find the right type of seal to fit on a 10mm propeller shaft that will run at up to 3000 rpm. 250 psi max pressure.<br>Regards Alan<br>_______________________________________________<br>Personal_Submersibles mailing list<br><a ymailto="mailto:Personal_Submersibles@psubs.org" href="mailto:Personal_Submersibles@psubs.org">Personal_Submersibles@psubs.org</a><br><a href="http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles" target="_blank" id="yui_3_16_0_1_1431554403395_6055">http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles</a><br><br><br></div> </div> </div> </div></body></html>