<html><head><meta http-equiv="content-type" content="text/html; charset=utf-8"></head><body dir="auto"><div>Noticed when visiting Nuytco that they used thread tape on their O2</div><div id="AppleMailSignature">supply to their bellows add system. Wondered about it at the time as I thought it would be inflammable. There is a high pressure gauge showing here so looks like they are using tape on the high pressure O2 line.</div><div id="AppleMailSignature">Alan</div><div id="AppleMailSignature"><br></div><div id="AppleMailSignature"><img src="cid:2306B160-2B97-4A59-B6FE-3D0964772A2C" alt="image1.JPG" id="2306B160-2B97-4A59-B6FE-3D0964772A2C"><br><br>Sent from my iPad</div><div><br>On 30/12/2017, at 2:34 PM, Hugh Fulton via Personal_Submersibles <<a href="mailto:personal_submersibles@psubs.org">personal_submersibles@psubs.org</a>> wrote:<br><br></div><blockquote type="cite"><div><meta http-equiv="Content-Type" content="text/html; charset=utf-8"><meta name="Generator" content="Microsoft Word 14 (filtered medium)"><style><!--
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</o:shapelayout></xml><![endif]--><div class="WordSection1"><p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">Like Brian and Hank,<o:p></o:p></span></p><p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"> Thread tape 2-1/2 turns and anti-seize. Don’t put on too much tape. Don’t leave tape hanging over the thread end as it will end up in the system. Start about ½ a thread back.<o:p></o:p></span></p><p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"> I tried Loctite many years ago with bad results but that was with natural gas. We do high pressure gas for a living. White tape for air and yellow for gas. Yellow is generally thicker. Some cheap white tapes are really thin so compensate.<o:p></o:p></span></p><p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"><a href="https://northerncal.swagelok.com/blog/bid/88017/skill-applying-ptfe-tape-to-tapered-pipe-threads">https://northerncal.swagelok.com/blog/bid/88017/skill-applying-ptfe-tape-to-tapered-pipe-threads</a><o:p></o:p></span></p><p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"><o:p> </o:p></span></p><p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">Hugh<o:p></o:p></span></p><p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"> <o:p></o:p></span></p><p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"><o:p> </o:p></span></p><p class="MsoNormal"><b><span lang="EN-US" style="font-size:10.0pt;font-family:"Tahoma","sans-serif"">From:</span></b><span lang="EN-US" style="font-size:10.0pt;font-family:"Tahoma","sans-serif""> Personal_Submersibles [<a href="mailto:personal_submersibles-bounces@psubs.org">mailto:personal_submersibles-bounces@psubs.org</a>] <b>On Behalf Of </b>Brian Cox via Personal_Submersibles<br><b>Sent:</b> Saturday, 30 December 2017 1:57 PM<br><b>To:</b> Personal Submersibles General Discussion<br><b>Subject:</b> Re: [PSUBS-MAILIST] High Pressure Air System Thread Sealants<o:p></o:p></span></p><p class="MsoNormal"><o:p> </o:p></p><div><div><p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Arial","sans-serif"">Steve, I used just Teflon tape and I had some tiny leaks. I would recommend using the Teflon tape and also a viscous product such as Never-seize. I had to back everything out and re-do all my fittings just for piece of mind. In addition the Never-seize is good for stainless to stainless fittings. I didn't have any leaks after that.<o:p></o:p></span></p></div><div><p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Arial","sans-serif""> <o:p></o:p></span></p></div><div><p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Arial","sans-serif"">Brian<o:p></o:p></span></p></div><div><p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Arial","sans-serif""> <o:p></o:p></span></p></div><div><p class="MsoNormal" style="margin-bottom:12.0pt"><span style="font-size:10.0pt;font-family:"Arial","sans-serif""> <br><br>--- <a href="mailto:personal_submersibles@psubs.org">personal_submersibles@psubs.org</a> wrote:<br><br>From: hank pronk via Personal_Submersibles <<a href="mailto:personal_submersibles@psubs.org">personal_submersibles@psubs.org</a>><br>To: Steve McQueen via Personal_Submersibles <<a href="mailto:personal_submersibles@psubs.org">personal_submersibles@psubs.org</a>><br>Subject: Re: [PSUBS-MAILIST] High Pressure Air System Thread Sealants<br>Date: Sat, 30 Dec 2017 00:02:14 +0000 (UTC)<o:p></o:p></span></p></div><div><div><p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Helvetica Neue","serif"">Steve,<o:p></o:p></span></p></div><div><p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Helvetica Neue","serif"">Tread tape has worked reliably for me for many years and projects. I tried a liquid product one time and it was garbage.<o:p></o:p></span></p></div><div><p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Helvetica Neue","serif"">Hank<o:p></o:p></span></p></div><div><p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Helvetica Neue","serif""><o:p> </o:p></span></p></div><div><div><div><p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Helvetica Neue","serif";color:#26282A">On Friday, December 29, 2017, 4:14:23 PM MST, Steve McQueen via Personal_Submersibles <<a href="mailto:personal_submersibles@psubs.org">personal_submersibles@psubs.org</a>> wrote: <o:p></o:p></span></p></div><div><p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Helvetica Neue","serif";color:#26282A"><o:p> </o:p></span></p></div><div><p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Helvetica Neue","serif";color:#26282A"><o:p> </o:p></span></p></div><div><div><div><div><p><span style="font-size:10.0pt;font-family:"Helvetica Neue","serif";color:#26282A">All, I am starting to plumb together my K250 HP Air distribution system (3,500 psi). Looking for feedback. <o:p></o:p></span></p></div><p><span style="font-size:10.0pt;font-family:"Helvetica Neue","serif";color:#26282A">For the NPT connections I am choosing a LOCTITE product:<o:p></o:p></span></p></div><p><span style="font-size:10.0pt;font-family:"Helvetica Neue","serif";color:#26282A"><o:p></o:p></span></p></div><p><span style="font-size:10.0pt;font-family:"Helvetica Neue","serif";color:#26282A">I’ve read Teflon tape technically isn’t the best for HP applications but I’ve seen it used. Anyone have a proven best practice?<o:p></o:p></span></p></div><p><span style="font-size:10.0pt;font-family:"Helvetica Neue","serif";color:#26282A">Thanks,<o:p></o:p></span></p></div><p><span style="font-size:10.0pt;font-family:"Helvetica Neue","serif"">Steve <o:p></o:p></span></p></div></div></div><p class="MsoNormal">_______________________________________________<br>Personal_Submersibles mailing list<br><a href="mailto:Personal_Submersibles@psubs.org">Personal_Submersibles@psubs.org</a><br><a href="http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles">http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles</a><br>_______________________________________________ Personal_Submersibles mailing list <a href="/eonapps/ft/wm/page/compose?send_to=Personal_Submersibles%40psubs.org">Personal_Submersibles@psubs.org</a> <a href="http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles">http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles</a> <o:p></o:p></p></div></div></blockquote><blockquote type="cite"><div><span>_______________________________________________</span><br><span>Personal_Submersibles mailing list</span><br><span><a href="mailto:Personal_Submersibles@psubs.org">Personal_Submersibles@psubs.org</a></span><br><span><a href="http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles">http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles</a></span><br></div></blockquote></body></html>