<html><head></head><body><div style="color:#000; background-color:#fff; font-family:HelveticaNeue, Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif;font-size:12px"><div id="yui_3_16_0_ym19_1_1460136683913_2975"><span>Hi Antoine,</span></div><div id="yui_3_16_0_ym19_1_1460136683913_2975"><span>Do you have a picture of the pump?</span></div><div id="yui_3_16_0_ym19_1_1460136683913_2975"><span>Hank</span></div> <div class="qtdSeparateBR"><br><br></div><div class="yahoo_quoted" style="display: block;"> <div style="font-family: HelveticaNeue, Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif; font-size: 12px;"> <div style="font-family: HelveticaNeue, Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif; font-size: 16px;"> <div dir="ltr"><font size="2" face="Arial"> On Friday, April 8, 2016 7:19 AM, Antoine Delafargue via Personal_Submersibles <personal_submersibles@psubs.org> wrote:<br></font></div> <br><br> <div class="y_msg_container"><div id="yiv9245398006"><div>Hello i have installed on pilot fish a sarum hydraulics hand pump rated for 40 bar and with 100cc stroke, and a short and long handle depending on depth. With materials and seals fit for sea water. Not very fast and Costs over 1000 euros but very sturdy and saves lot of space and air over classical hard ballast. I could add electrical pump later<div>Regards Antoine <br clear="none"><div class="yiv9245398006yqt4879218675" id="yiv9245398006yqt90331"><div><div><br clear="none">On Friday, April 8, 2016, hank pronk 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"><blockquote class="yiv9245398006gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex;"><div><div style="color:#000;background-color:#fff;font-family:HelveticaNeue, Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif;font-size:12px;"><div><span>Steve,</span></div><div><span>Good points, I think I will make my own pump. I can </span>make the pump faster than a hydraulic pump by using a larger displacement plunger but not so large that it is hard to operate. </div><div>Hank</div> <div><br clear="none"><br clear="none"></div><div style="display:block;"> <div style="font-family:HelveticaNeue, Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif;font-size:12px;"> <div style="font-family:HelveticaNeue, Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif;font-size:16px;"> <div dir="ltr"><font size="2" face="Arial"> On Thursday, April 7, 2016 7:36 PM, Stephen Fordyce via Personal_Submersibles <<a rel="nofollow" shape="rect" href="">personal_submersibles@psubs.org</a>> wrote:<br clear="none"></font></div> <br clear="none"><br clear="none"> <div><div><div><div dir="ltr"><div>Hi Hank,</div><div>I reckon a hydraulic bottle or lever jack is something to start with, and you'll struggle to get a hand pump that will do the sort of pressures you want (ie. most applications for air are too low pressure, for hydraulics are higher pressure, and not heaps in between).</div><div><br clear="none"></div><div>But then the capacity of the hydraulic hand pump will be tiny and as was mentioned, it's steel. Might still be a good starting point for freshwater use regardless, or to reverse engineer and make a stainless one.</div><div><br clear="none"></div><div>Here's a thought experiment that may be useful:</div><div>If you have 1L of water that you want to move from inside the sub (1atm) to outside (31atm at 300m water depth), that's equivalent in required energy to pulling up a 1L bucket from a 300m deep well. That's quite a bit of manual effort just for 1L. If it's 10L, well, screw doing that manually I say :)</div><div><br clear="none"></div><div>Cheers,</div><div>Steve</div></div><div><br clear="none"><div>On Fri, Apr 8, 2016 at 11:16 AM, hank pronk via Personal_Submersibles <span dir="ltr"><<a rel="nofollow" shape="rect" href="">personal_submersibles@psubs.org</a>></span> wrote:<br clear="none"><blockquote style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex;"><div><div><div style="color:rgb(0,0,0);font-family:HelveticaNeue, Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif;font-size:12px;background-color:rgb(255,255,255);"><div><span>Alan,</span></div><div dir="ltr"><span>I need full depth pressure rating so I can sink fast without thrusters then pump out some water at depth to go </span>neutral. I can't wast air like Gamma because I have no onboard compressor. </div><span><font color="#888888"></font></span><div dir="ltr">Hank</div><div><div> <div><br clear="none"><br clear="none"></div><div style="display:block;"> <div style="font-family:HelveticaNeue, Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif;font-size:12px;"> <div style="font-family:HelveticaNeue, Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif;font-size:16px;"> <div dir="ltr"><font face="Arial" size="2"> On Thursday, April 7, 2016 5:42 PM, Alan James via Personal_Submersibles <<a rel="nofollow" shape="rect" href="">personal_submersibles@psubs.org</a>> wrote:<br clear="none"></font></div> <br clear="none"><br clear="none"> <div><div><div><div style="color:rgb(0,0,0);font-family:HelveticaNeue, Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif;font-size:16px;background-color:rgb(255,255,255);"><div><span>Hank,</span></div><div><span>why not use an electric pump used on boats & have valves to operate</span></div><div><span>various other functions. They are reasonably small, 12V & built for marine conditions.</span></div><div><span>Can't recall what psi they go up to, but saw some rated 130 psi.</span></div><div><span>Cheers Alan</span></div><div><br clear="none"><br clear="none"></div><div style="display:block;"> <div style="font-family:HelveticaNeue, Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif;font-size:16px;"> <div style="font-family:HelveticaNeue, Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif;font-size:16px;"> <div><div dir="ltr"> <font face="Arial" size="2"> </font><hr size="1"> <b><span style="font-weight:bold;">From:</span></b> Sean T. Stevenson via Personal_Submersibles <<a rel="nofollow" shape="rect" href="">personal_submersibles@psubs.org</a>><br clear="none"> <b><span style="font-weight:bold;">To:</span></b> Personal Submersibles General Discussion <<a rel="nofollow" shape="rect" href="">personal_submersibles@psubs.org</a>> <br clear="none"> <b><span style="font-weight:bold;">Sent:</span></b> Friday, April 8, 2016 11:18 AM<br clear="none"> <b><span style="font-weight:bold;">Subject:</span></b> Re: [PSUBS-MAILIST] hand pump<br clear="none"> </div> <div><br clear="none"><div><div><div dir="ltr">I use these at work sometimes:</div>
<div dir="ltr"><a rel="nofollow" shape="rect" target="_blank" href="http://www.enerpac.com/en-us/industrial-tools/hydraulic-pumps-and-valves/hydraulic-manual-pumps-0">http://www.enerpac.com/en-us/industrial-tools/hydraulic-pumps-and-valves/hydraulic-manual-pumps-0</a></div>
<div dir="ltr">Don't know what they cost though.</div>
<div dir="ltr">Sean<br clear="none">
</div>
<br clear="none"><br clear="none"><div>On April 7, 2016 5:03:15 PM MDT, hank pronk via Personal_Submersibles <<a rel="nofollow" shape="rect" href="">personal_submersibles@psubs.org</a>> wrote:<blockquote style="margin:0pt 0pt 0pt 0.8ex;padding-left:1ex;border-left-color:rgb(204,204,204);border-left-width:1px;border-left-style:solid;">
<div><div style="color:rgb(0,0,0);font-family:HelveticaNeue, Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif;font-size:12px;background-color:rgb(255,255,255);"><div>Hi All,</div><div dir="ltr">I am looking for a hand pump to remove water from my trim tank. It will work like a DW. I will empty the air out of the mbt and then flood a small plastic tank inside the sub. Any ideas?</div><div dir="ltr">Hank</div></div></div><div style="margin-top:2.5em;margin-bottom:1em;border-bottom-color:rgb(0,0,0);border-bottom-width:1px;border-bottom-style:solid;"></div><pre></pre><hr><br clear="none">Personal_Submersibles mailing list<br clear="none"><a rel="nofollow" shape="rect" href="">Personal_Submersibles@psubs.org</a><br clear="none"><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><br clear="none"></blockquote></div></div></div><br clear="none"><div>_______________________________________________<br clear="none">Personal_Submersibles mailing list<br clear="none"><a rel="nofollow" shape="rect" href="">Personal_Submersibles@psubs.org</a><br clear="none"><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><br clear="none"></div><br clear="none"><br clear="none"></div></div> </div> </div> </div></div></div></div><br clear="none"><div>_______________________________________________<br clear="none">Personal_Submersibles mailing list<br clear="none"><a rel="nofollow" shape="rect" href="">Personal_Submersibles@psubs.org</a><br clear="none"><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><br clear="none"></div><br clear="none"><br clear="none"></div> </div> </div> </div></div></div></div></div></div><br clear="none">_______________________________________________<br clear="none">
Personal_Submersibles mailing list<br clear="none">
<a rel="nofollow" shape="rect" href="">Personal_Submersibles@psubs.org</a><br clear="none">
<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><br clear="none">
<br clear="none"></blockquote></div><br clear="none"></div></div></div><br clear="none"><div>_______________________________________________<br clear="none">Personal_Submersibles mailing list<br clear="none"><a rel="nofollow" shape="rect" href="">Personal_Submersibles@psubs.org</a><br clear="none"><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><br clear="none"></div><br clear="none"><br clear="none"></div> </div> </div> </div></div></div></blockquote></div></div></div></div></div></div><br><div class="yqt4879218675" id="yqt48346">_______________________________________________<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"></div><br><br></div> </div> </div> </div></div></body></html>