<html><head></head><body><p dir="ltr">Sorry that I have only been following these threads sporadically, or I would have replied sooner.</p>
<p dir="ltr">7/16-20 UNF is the same thread as SAE/MS in the same size. It is probably more cost effective to use an o-ring sealed adapter to NPT (such as a Swagelok SS-4-SAE-7-4) and an industry standard male NPT transducer, than trying to source a transducer with the o-ring sealed straight thread fitting.</p>
<p dir="ltr">Sean<br>
</p>
<br><br><div class="gmail_quote">On November 5, 2016 6:16:37 AM MDT, hank pronk via Personal_Submersibles <personal_submersibles@psubs.org> wrote:<blockquote class="gmail_quote" style="margin: 0pt 0pt 0pt 0.8ex; border-left: 1px solid rgb(204, 204, 204); padding-left: 1ex;">
<div style="color:#000; background-color:#fff; font-family:HelveticaNeue, Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif;font-size:12px"><div><span>Alan,</span></div><div><span>There must be a how many threads per mm to how much psi chart out there. You would think if the plug is 7.16 mm long, then that should be your bench mark.</span></div><div><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, November 4, 2016 10:23 PM, Alan via Personal_Submersibles <personal_submersibles@psubs.org> wrote:<br /></font></div> <br /><br /> <div class="y_msg_container">I am still in the process of ordering some
pressure transmitters that<br />will screw in to the high pressure port of a scuba tank. Have had a <br />number of quotes, & it looks like some manufacturers will do a limited<br />run with the non standard 7/16 UNF thread. I am not sure what to <br />specify with regard to thread length. Have measured 3 hp ports &<br />they are around 11.5mm deep. The depth gauge thread that screws <br />in to it is about 8.76mm long & the blank / plug that fits in the port is 7.16mm long.<br />Any transmitter thread length over the port depth will bottom out & not <br />be able to compress the o-ring which is on the pressure transmitter.<br />I was thinking of specifying 10mm but wondered if there was an industry <br />standard length. <br />Am nit picking a bit here but want to get it right, as others may want to<br />order the same product if it works well.<br />Regards Alan<br /><br /><br />Sent from my iPad<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 /></div> </div> </div> </div></div><p style="margin-top: 2.5em; margin-bottom: 1em; border-bottom: 1px solid #000"></p><pre class="k9mail"><hr /><br />Personal_Submersibles mailing list<br />Personal_Submersibles@psubs.org<br /><a href="http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles">http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles</a><br /></pre></blockquote></div></body></html>