<html><head></head><body><div style="color:#000; background-color:#fff; font-family:times new roman, new york, times, serif;font-size:16px"><div id="yui_3_16_0_ym19_1_1520788350158_7517" dir="ltr"><span id="yui_3_16_0_ym19_1_1520788350158_7612">Is there some other way to tap HP off a SCUBA tank other than first stage regulator? I was thinking of running the HP hose to a manifold that would feed the ballast tanks.</span></div><div class="qtdSeparateBR" id="yui_3_16_0_ym19_1_1520788350158_7550"><br><br></div><div class="yahoo_quoted" id="yui_3_16_0_ym19_1_1520788350158_7616" style="display: block;"> <div style="font-family: times new roman, new york, times, serif; font-size: 16px;" id="yui_3_16_0_ym19_1_1520788350158_7615"> <div style="font-family: HelveticaNeue, Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif; font-size: 16px;" id="yui_3_16_0_ym19_1_1520788350158_7614"> <div dir="ltr" id="yui_3_16_0_ym19_1_1520788350158_7613"> <font size="2" face="Arial" id="yui_3_16_0_ym19_1_1520788350158_7617"> <hr size="1"> <b><span style="font-weight:bold;">From:</span></b> Sean T. Stevenson via Personal_Submersibles <personal_submersibles@psubs.org><br> <b><span style="font-weight: bold;">To:</span></b> personal_submersibles@psubs.org <br> <b><span style="font-weight: bold;">Sent:</span></b> Sunday, March 11, 2018 10:54 AM<br> <b><span style="font-weight: bold;">Subject:</span></b> Re: [PSUBS-MAILIST] HP Scuba hose<br> </font> </div> <div class="y_msg_container" id="yui_3_16_0_ym19_1_1520788350158_7618"><br><div id="yiv8090308004"><div id="yui_3_16_0_ym19_1_1520788350158_7619">HP SCUBA regulator orifice is 7/16-20 UNF 2B thread. There are Swagelok and other fittings which will work, but watch your wrench clearances when using multiple adjacent ports. On that note, LP SCUBA ports are either 3/8-24 UNF - 2B (most common) or 1/2-20 UNF - 2B (less common). Be aware that while most HP SCUBA SPG hoses have a pinhole bore in order to reduce the consequences of a HP hose failure, some SCUBA regulators incorporate the pinhole restriction into the regulator itself, which will limit the available flow rate at high pressure. Of course, if your drawing gas off at high pressure anyway, why go through the reg?<br clear="none"><br clear="none">Sean<br clear="none"><br clear="none">Sent from ProtonMail mobile<br clear="none"><br clear="none"><br clear="none"><br clear="none">-------- Original Message --------<br clear="none">On Mar 11, 2018, 07:12, Jon Wallace via Personal_Submersibles < personal_submersibles@psubs.org> wrote:<blockquote class="yiv8090308004protonmail_quote"><br clear="none"></blockquote></div><div class="yiv8090308004yqt2009048913" id="yiv8090308004yqt66975"><div><div style="color:#000;background-color:#fff;font-family:times new roman, new york, times, serif;font-size:16px;"><div><br clear="none"></div><div dir="ltr">Are there adapters that can change a SCUBA HP hose fitting to NPT?</div><div dir="ltr"><br clear="none"></div><div dir="ltr" id="yiv8090308004yui_3_16_0_ym19_1_1520777355398_5939">Jon</div><div dir="ltr" id="yiv8090308004yui_3_16_0_ym19_1_1520777355398_5940"><br clear="none"></div></div></div></div></div><div class="yqt2009048913" id="yqt72858">_______________________________________________<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>