<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_1423679966068_5094" dir="ltr"><span>Hank,</span></div><div id="yui_3_16_0_1_1423679966068_5094" dir="ltr"><span id="yui_3_16_0_1_1423679966068_5204">why not just use air if the pneumatic cylinders are rated for 150 psi.</span></div><div id="yui_3_16_0_1_1423679966068_5094" dir="ltr"><span id="yui_3_16_0_1_1423679966068_5143">If they are rated for 150 psi it would be assumed that their mechanical strength</span></div><div id="yui_3_16_0_1_1423679966068_5094" dir="ltr"><span id="yui_3_16_0_1_1423679966068_5210">would match the load they can lift with 150 psi also.</span></div><div id="yui_3_16_0_1_1423679966068_5094" dir="ltr"><span id="yui_3_16_0_1_1423679966068_5211">Is there any advantage other than the o ring working both ways to stop water</span></div><div id="yui_3_16_0_1_1423679966068_5094" dir="ltr"><span id="yui_3_16_0_1_1423679966068_5212">ingress, as you have said previously. Does anyone else use them in place</span></div><div id="yui_3_16_0_1_1423679966068_5094" dir="ltr"><span>of hydraulic cylinders?</span></div><div id="yui_3_16_0_1_1423679966068_5094" 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_1423679966068_5089"> <div style="font-family: HelveticaNeue, Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif; font-size: 16px;" id="yui_3_16_0_1_1423679966068_5088"> <div dir="ltr" id="yui_3_16_0_1_1423679966068_5087"> <hr size="1" id="yui_3_16_0_1_1423679966068_5235"> <font size="2" face="Arial" id="yui_3_16_0_1_1423679966068_5086"> <b><span style="font-weight:bold;">From:</span></b> hank pronk 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, February 12, 2015 7:21 AM<br> <b><span style="font-weight: bold;">Subject:</span></b> Re: [PSUBS-MAILIST] Manipulator<br> </font> </div> <div class="y_msg_container" id="yui_3_16_0_1_1423679966068_5090"><br><br>No problems, Gamma has air cylinders and at 1,000 feet the hydraulic pump is set at 1,100 psi. Your K sub can have a pressure setting of 500 or less and work just fine. Remember, your not lifting a lot just the arm plus a bit.<br>Hank--------------------------------------------<br>On Wed, 2/11/15, <a ymailto="mailto:swaters@waters-ks.com" href="mailto:swaters@waters-ks.com" id="yui_3_16_0_1_1423679966068_5093">swaters@waters-ks.com</a> via Personal_Submersibles <<a ymailto="mailto:personal_submersibles@psubs.org" href="mailto:personal_submersibles@psubs.org">personal_submersibles@psubs.org</a>> wrote:<br><br> Subject: Re: [PSUBS-MAILIST] Manipulator<br> To: "Personal Submersibles General Discussion" <<a ymailto="mailto:personal_submersibles@psubs.org" href="mailto:personal_submersibles@psubs.org">personal_submersibles@psubs.org</a>><br> Received: Wednesday, February 11, 2015, 12:23 PM<br> <br> Do you<br> have any problem with over pressure though? The pnuematic<br> cylinders are rated to 150psi with air and 1000 psi with<br> oil. Thanks,Scott<br> Waters<br> <br> Sent from my U.S.<br> Cellular® Smartphone<br> <br> -------- Original message<br> --------<br> From: hank pronk via<br> Personal_Submersibles<br> <<a ymailto="mailto:personal_submersibles@psubs.org" href="mailto:personal_submersibles@psubs.org">personal_submersibles@psubs.org</a>> <br> Date:02/11/2015 11:12 AM (GMT-06:00) <br> To: personal_submersibles<br> <<a ymailto="mailto:personal_submersibles@psubs.org" href="mailto:personal_submersibles@psubs.org">personal_submersibles@psubs.org</a>> <br> Cc:<br> <br> Subject: Re: [PSUBS-MAILIST] Manipulator<br> <br> <br> hi Scott<br> use a<br> hydraulic pump just the same as if you used hydraulic<br> cylinders<br> Hank <br> <br> <br> <br> <br> <br> <br> <br> <br> From:<br> <br> <a ymailto="mailto:swaters@waters-ks.com" href="mailto:swaters@waters-ks.com">swaters@waters-ks.com</a> via<br> Personal_Submersibles<br> <<a ymailto="mailto:personal_submersibles@psubs.org" href="mailto:personal_submersibles@psubs.org">personal_submersibles@psubs.org</a>>; <br> <br> <br> <br> To:<br> <br> psubs<br> <<a ymailto="mailto:personal_submersibles@psubs.org" href="mailto:personal_submersibles@psubs.org">personal_submersibles@psubs.org</a>>; <br> <br> <br> <br> Subject:<br> <br> [PSUBS-MAILIST] Manipulator <br> <br> <br> <br> Sent:<br> <br> Wed, Feb 11, 2015 3:39:07 PM <br> <br> <br> <br> <br> <br> Hank,I know you<br> said to use pnumatic cylinders for the manipulator arm.<br> What kind of pump do you<br> use?Thanks,Scott Waters<br> <br> Sent from my U.S.<br> Cellular®<br> Smartphone<br> <br> <br> <br> <br> -----Inline Attachment Follows-----<br> <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">http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles</a><br> <br><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">http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles</a><br><br></div> </div> </div> </div></body></html>