<div style="color:#000; background-color:#fff; font-family:HelveticaNeue, Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif;font-size:16px"><div id="yiv6857429723"><div id="yui_3_16_0_1_1417218398003_3279"><div style="color:#000;background-color:#fff;font-family:HelveticaNeue, Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif;font-size:16px;" id="yui_3_16_0_1_1417218398003_3278"><div dir="ltr" id="yiv6857429723yui_3_16_0_1_1417208580663_8658"><span id="yui_3_16_0_1_1417218398003_3277">A few more thoughts,</span></div><div dir="ltr" id="yiv6857429723yui_3_16_0_1_1417208580663_8658"><span id="yui_3_16_0_1_1417218398003_7570">My original idea was to take the existing ball from the ball valve</span></div><div dir="ltr" id="yiv6857429723yui_3_16_0_1_1417208580663_8657"><span id="yiv6857429723yui_3_16_0_1_1417208580663_9197">& turn it 90 degrees on the vertical plane, & drill out the threaded spindle hole to fit the cue.</span></div><div dir="ltr" id="yiv6857429723yui_3_16_0_1_1417208580663_8657"><span id="yui_3_16_0_1_1417218398003_7563">Not all ball valves would lend themselves to this.</span></div><div dir="ltr" id="yiv6857429723yui_3_16_0_1_1417208580663_8657"><span id="yui_3_16_0_1_1417218398003_3733">The problems then are whether with the rotation of the cue, the large hole through the ball</span></div><div dir="ltr" id="yiv6857429723yui_3_16_0_1_1417208580663_8657"><span id="yui_3_16_0_1_1417218398003_4831">is exposed, & with the cue hole going through this large hole is it going to leak, & how do you fit o-rings to seal the</span></div><div dir="ltr" id="yiv6857429723yui_3_16_0_1_1417208580663_8657">movement of the cue. </div><div dir="ltr" id="yiv6857429723yui_3_16_0_1_1417208580663_8657">One solution to the last problem may be to epoxy in some sort of tubular fitting with internal o-rings.</div><div dir="ltr" id="yiv6857429723yui_3_16_0_1_1417208580663_8657">Alan</div><div dir="ltr" id="yiv6857429723yui_3_16_0_1_1417208580663_8657"><span><br clear="none"></span></div><br clear="none">  <div class="qtdSeparateBR"><br><br></div><div class="yiv6857429723yqt2263360569" id="yiv6857429723yqt59261"><div id="yiv6857429723yui_3_16_0_1_1417208580663_8019" style="font-family:HelveticaNeue, Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif;font-size:16px;"> <div id="yiv6857429723yui_3_16_0_1_1417208580663_8018" style="font-family:HelveticaNeue, Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif;font-size:16px;"> <div dir="ltr" id="yiv6857429723yui_3_16_0_1_1417208580663_8054"> <hr size="1" id="yui_3_16_0_1_1417218398003_3318">  <font id="yiv6857429723yui_3_16_0_1_1417208580663_9548" size="2" face="Arial"> <b><span style="font-weight:bold;">From:</span></b> Hugh Fulton via Personal_Submersibles <personal_submersibles@psubs.org><br clear="none"> <b><span style="font-weight:bold;">To:</span></b> 'Personal Submersibles General Discussion' <personal_submersibles@psubs.org> <br clear="none"> <b><span style="font-weight:bold;">Sent:</span></b> Saturday, November 29, 2014 10:03 AM<br clear="none"> <b><span style="font-weight:bold;">Subject:</span></b> Re: [PSUBS-MAILIST] cue ball arm<br clear="none"> </font> </div> <div class="yiv6857429723y_msg_container" id="yiv6857429723yui_3_16_0_1_1417208580663_8017"><br clear="none">Hank,<br clear="none">OK I never realised that.  Very intesting.  The cue ball (plastic) on a<br clear="none">curved SS seat. Reversed SS Ball on plastic seat. <br clear="none">No doubt there is a reason behind it all where we need a bit of history.<br clear="none">Vance, are you listening?  They will have tried a ball valve design at some<br clear="none">stage most probably<br clear="none">and found that the lowest friction is from the design they came up with.  We<br clear="none">usually have a torque of about 5 ft lbs but again it is for 6000 psi<br clear="none">service.  I need to have a play with this as it is quite fascinating.  Chs,<br clear="none">Hugh<br clear="none"><br clear="none"><br clear="none"><br clear="none">-----Original Message-----<br clear="none">From: Personal_Submersibles [mailto:<a rel="nofollow" shape="rect" ymailto="mailto:personal_submersibles-bounces@psubs.org" target="_blank" href="mailto:personal_submersibles-bounces@psubs.org">personal_submersibles-bounces@psubs.org</a>]<br clear="none">On Behalf Of hank pronk via Personal_Submersibles<br clear="none">Sent: Saturday, 29 November 2014 9:42 a.m.<br clear="none">To: Personal Submersibles General Discussion<br clear="none">Subject: Re: [PSUBS-MAILIST] cue ball arm<br clear="none"><br clear="none"><br clear="none">Hugh,<br clear="none">Now that is interesting!  Just so you know, the original cue ball sits on a<br clear="none">ss shaped seat that matches the ball perfectly.  The seal is a regular 1/8<br clear="none">in dia o-ring mounted at the equator of the cue ball.<br clear="none">Hank--------------------------------------------<br clear="none">On Fri, 11/28/14, Hugh Fulton via Personal_Submersibles<br clear="none"><<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"> Subject: Re: [PSUBS-MAILIST] cue ball arm<br clear="none"> To: "'Personal Submersibles General Discussion'"<br clear="none"><<a rel="nofollow" shape="rect" ymailto="mailto:personal_submersibles@psubs.org" target="_blank" href="mailto:personal_submersibles@psubs.org">personal_submersibles@psubs.org</a>><br clear="none"> Received: Friday, November 28, 2014, 3:27 PM<br clear="none"> <br clear="none"> Hank, A metal ball is<br clear="none"> fine.  Brass is likely to corrode faster than 316 SS  if it is not looked<br clear="none">after. The harder the  better of course but if it is kept  greased  then you<br clear="none">won't have a problem.  Forget the seal having  to be curved  for the ball. <br clear="none">We use 45  degree seats at 6000 psi.  There is less torque  required on a 45<br clear="none">degree seat than a fully  shaped one and the sealing is  better.  We  allow<br clear="none">about 3 to 4 thou of crush from finger tight to  fully  torqued bolts.<br clear="none">Because you are only  doing low pressure you can get more  angle  with the<br clear="none">seat contact to give you a greater movement. As I  said before  the secret<br clear="none">is in the grease for  ease.  Do you have an oxygen grease?  White  stuff. <br clear="none">Will reduce the friction by 60%.  Regards,  Hugh     <br clear="none"> <br clear="none"> <br clear="none"> -----Original Message-----<br clear="none"> From: Personal_Submersibles<br clear="none">[mailto:<a rel="nofollow" shape="rect" ymailto="mailto:personal_submersibles-bounces@psubs.org" target="_blank" href="mailto:personal_submersibles-bounces@psubs.org">personal_submersibles-bounces@psubs.org</a>]<br clear="none"> On Behalf Of hank pronk via<br clear="none"> Personal_Submersibles<br clear="none"> Sent: Saturday, 29<br clear="none"> November 2014 8:59 a.m.<br clear="none"> To: Personal<br clear="none"> Submersibles General Discussion<br clear="none"> Subject: Re:<br clear="none"> [PSUBS-MAILIST] cue ball arm<br clear="none"> <br clear="none"> <br clear="none"> Hi Hugh,<br clear="none"> I<br clear="none"> don't have the original drawings yet, but Vance has them  and is sending<br clear="none">them to me.<br clear="none"> I<br clear="none"> am going to experiment with a brass ball to replace the cue  ball.  With<br clear="none">the modified ball valve I can  use a metal ball now.  Any thoughts on that.<br clear="none"> Hank--------------------------------------------<br clear="none"> On Fri, 11/28/14, Hugh Fulton via<br clear="none"> Personal_Submersibles<br clear="none"> <<a rel="nofollow" shape="rect" ymailto="mailto:personal_submersibles@psubs.org" target="_blank" href="mailto:personal_submersibles@psubs.org">personal_submersibles@psubs.org</a>><br clear="none"> wrote:<br clear="none"> <br clear="none">  Subject: Re:<br clear="none"> [PSUBS-MAILIST] cue ball arm<br clear="none">  To:<br clear="none"> "'Personal Submersibles General<br clear="none"> Discussion'"<br clear="none"> <<a rel="nofollow" shape="rect" ymailto="mailto:personal_submersibles@psubs.org" target="_blank" href="mailto:personal_submersibles@psubs.org">personal_submersibles@psubs.org</a>><br clear="none">  Received: Friday, November 28, 2014, 2:46  PM<br clear="none">  <br clear="none">  Hi Hank,<br clear="none">  Do you or anyone else, have a cross section  of  the cue-ball, glands, and<br clear="none">arm  mechanism  anywhere?<br clear="none">  I would like to have<br clear="none"> a look at the<br clear="none">  seal side as well.  We make<br clear="none"> ball valves  and  have done a lot of work on  different designs of seals. <br clear="none"> <br clear="none"> Might be able to come up with one that is  easier to  move.  We use an<br clear="none">oxygen  grease  which is  magic for reducing friction. Goes under the name<br clear="none">of  "slippery pooze" here in the  workshop.<br clear="none">  Regards, Hugh.<br clear="none"> <br clear="none"> <br clear="none">  <br clear="none">  -----Original<br clear="none"> Message-----<br clear="none">  From: Personal_Submersibles<br clear="none"> [mailto:<a rel="nofollow" shape="rect" ymailto="mailto:personal_submersibles-bounces@psubs.org" target="_blank" href="mailto:personal_submersibles-bounces@psubs.org">personal_submersibles-bounces@psubs.org</a>]<br clear="none">  On Behalf Of hank pronk via<br clear="none"> <br clear="none"> Personal_Submersibles<br clear="none">  Sent: Saturday, 29<br clear="none">  November 2014 5:42 a.m.<br clear="none">  To:<br clear="none"> <a rel="nofollow" shape="rect" ymailto="mailto:personal_submersibles@psubs.org" target="_blank" href="mailto:personal_submersibles@psubs.org">personal_submersibles@psubs.org</a><br clear="none">  Subject: [PSUBS-MAILIST] cue ball arm<br clear="none">  <br clear="none">  Hi Alan,<br clear="none"> <br clear="none"> I<br clear="none">  just added a picture of the cue ball arm,  ball assembly,  installed on<br clear="none">Gamma.  You  can see the range  of motion and how it mounts to the  sub.<br clear="none">  Hank<br clear="none"> <br clear="none"> _______________________________________________<br clear="none">  Personal_Submersibles mailing list<br clear="none">  <a rel="nofollow" shape="rect" ymailto="mailto:Personal_Submersibles@psubs.org" target="_blank" href="mailto:Personal_Submersibles@psubs.org">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">  <br clear="none"> <br clear="none"> __________<br clear="none">  Information from ESET NOD32<br clear="none"> Antivirus, version of virus  signature<br clear="none"> database 10797 (20141128)  __________<br clear="none">  <br clear="none">  The message was<br clear="none">  checked by ESET NOD32 Antivirus.<br clear="none">  <br clear="none">  <a rel="nofollow" shape="rect" target="_blank" href="http://www.eset.com/">http://www.eset.com</a><br clear="none">  <br clear="none"> <br clear="none">   <br clear="none">  <br clear="none"> <br clear="none"> __________<br clear="none">  Information from ESET NOD32<br clear="none"> Antivirus, version of virus  signature<br clear="none"> database 10797 (20141128)  __________<br clear="none">  <br clear="none">  The message was<br clear="none">  checked by ESET NOD32 Antivirus.<br clear="none">  <br clear="none">  <a rel="nofollow" shape="rect" target="_blank" href="http://www.eset.com/">http://www.eset.com</a><br clear="none">  <br clear="none"> <br clear="none">  <br clear="none"> <br clear="none"> _______________________________________________<br clear="none">  Personal_Submersibles mailing list<br clear="none">  <a rel="nofollow" shape="rect" ymailto="mailto:Personal_Submersibles@psubs.org" target="_blank" href="mailto:Personal_Submersibles@psubs.org">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"> <br clear="none"> _______________________________________________<br clear="none"> Personal_Submersibles mailing list<br clear="none"> <a rel="nofollow" shape="rect" ymailto="mailto:Personal_Submersibles@psubs.org" target="_blank" href="mailto:Personal_Submersibles@psubs.org">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"> <br clear="none"> __________<br clear="none"> Information from ESET NOD32 Antivirus, version of virus  signature<br clear="none">database 10798 (20141128)  __________<br clear="none"> <br clear="none"> The message was<br clear="none"> checked by ESET NOD32 Antivirus.<br clear="none"> <br clear="none"> <a rel="nofollow" shape="rect" target="_blank" href="http://www.eset.com/">http://www.eset.com</a><br clear="none">  <br clear="none">  <br clear="none"> <br clear="none"> __________<br clear="none"> Information from ESET NOD32 Antivirus, version of virus  signature<br clear="none">database 10798 (20141128)  __________<div class="yiv6857429723qtdSeparateBR"><br clear="none"><br clear="none"></div><div class="yiv6857429723yqt1033966052" id="yiv6857429723yqtfd61121"><br clear="none"> <br clear="none"> The message was checked by<br clear="none"> ESET NOD32 Antivirus.<br clear="none"> <br clear="none"> <a rel="nofollow" shape="rect" target="_blank" href="http://www.eset.com/">http://www.eset.com</a><br clear="none">  <br clear="none"> <br clear="none"> <br clear="none"> _______________________________________________<br clear="none"> Personal_Submersibles mailing list<br clear="none"> <a rel="nofollow" shape="rect" ymailto="mailto:Personal_Submersibles@psubs.org" target="_blank" href="mailto:Personal_Submersibles@psubs.org">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">_______________________________________________<br clear="none">Personal_Submersibles mailing list<br clear="none"><a rel="nofollow" shape="rect" ymailto="mailto:Personal_Submersibles@psubs.org" target="_blank" href="mailto:Personal_Submersibles@psubs.org">Personal_Submersibles@psubs.org</a><br clear="none"><a rel="nofollow" shape="rect" target="_blank" href="http://www.psubs.org/mailman/listi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