<DIV style="font-family:Arial, sans-serif; font-size:10pt;"><FONT size="2" style=""><FONT face="Arial, sans-serif">This tank it seems was shipped with a fair amount of gas in it ! I've been draining it for a while now. This tank has an electrical valve on it. Also has a pressure relief valve . Once I'm done draining it ( by unscrewing slightly the PR valve) I'm going to take off the pressure relief valve and see if I can match up the threads at a hydraulic place. I tried a 3/8" thread but it would not thread. We have a type 3 manufacturer very close by and he gave me some info on the various threads that are used. </FONT></FONT><DIV><FONT face="Arial, sans-serif" size="2"><BR></FONT></DIV><DIV><FONT face="Arial, sans-serif" size="2">Hank , who is the manufacturer of your tank? <BR></FONT><DIV><FONT face="Arial, sans-serif" size="2"><BR></FONT></DIV><DIV><FONT face="Arial, sans-serif" size="2">Brian</FONT></DIV><DIV><FONT face="Arial, sans-serif" size="2"><BR></FONT></DIV><DIV><FONT face="Arial, sans-serif" size="2"><BR></FONT><BR><SPAN style="font-family: Arial, sans-serif; font-size: 10pt;">--- personal_submersibles@psubs.org wrote:</SPAN><BR><BR><SPAN style="font-family: Arial, sans-serif; font-size: 10pt;">From: hank pronk via Personal_Submersibles <personal_submersibles@psubs.org></SPAN><BR><SPAN style="font-family: Arial, sans-serif; font-size: 10pt;">To: Brian Cox via Personal_Submersibles <personal_submersibles@psubs.org></SPAN><BR><SPAN style="font-family: Arial, sans-serif; font-size: 10pt;">Subject: Re: [PSUBS-MAILIST] CNG tank</SPAN><BR><SPAN style="font-family: Arial, sans-serif; font-size: 10pt;">Date: Wed, 29 May 2019 00:14:42 +0000 (UTC)</SPAN><BR><BR><DIV style="font-family: "Helvetica Neue", Helvetica, Arial, sans-serif; font-size: 13px;"><DIV></DIV>
<DIV>Brian, </DIV><DIV>I have no idea what pressure it can take with no air in it. It should be a reasonable amount given the thickness of the shell. My tanks have a strait thread with an o-ring. It makes no sense to have a taper thread with an o-ring. The taper thread (pipe thread) seals on its own. I have steel CNG tanks with a pipe thread valve but I am sure the type 4 carbon </DIV><DIV> fibre tanks are not pipe thread</DIV><DIV>Hank</DIV><DIV><BR></DIV>
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On Tuesday, May 28, 2019, 5:51:48 PM MDT, Brian Cox via Personal_Submersibles <personal_submersibles@psubs.org> wrote:
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<DIV><DIV><DIV><DIV style="font-family:Arial, sans-serif;font-size:10pt;"><FONT size="2">Hank , Any idea what pressure those tanks would take with no internal pressure ?</FONT><DIV><FONT size="2"><BR></FONT></DIV><DIV><FONT size="2">Brian</FONT></DIV><DIV><FONT size="2"><BR></FONT></DIV><DIV><FONT size="2"><BR></FONT><BR><SPAN style="font-size:10pt;">--- personal_submersibles@psubs.org wrote:</SPAN><BR><BR><SPAN style="font-size:10pt;">From: hank pronk via Personal_Submersibles <personal_submersibles@psubs.org></SPAN><BR><SPAN style="font-size:10pt;">To: Brian Cox via Personal_Submersibles <personal_submersibles@psubs.org></SPAN><BR><SPAN style="font-size:10pt;">Subject: Re: [PSUBS-MAILIST] CNG tank</SPAN><BR><SPAN style="font-size:10pt;">Date: Tue, 28 May 2019 22:11:48 +0000 (UTC)</SPAN><BR><BR><DIV style="font-size:13px;"><DIV></DIV>
<DIV>Not on mine, all right hand thread</DIV><DIV>Hank</DIV><DIV><BR></DIV>
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On Tuesday, May 28, 2019, 3:48:21 PM MDT, Brian Cox via Personal_Submersibles <personal_submersibles@psubs.org> wrote:
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<DIV><DIV><DIV><DIV style="font-family:Arial, sans-serif;font-size:10pt;"><FONT size="2">There is a fill fitting on this tank that seems like it is reverse thread</FONT><DIV><FONT size="2"><BR></FONT></DIV><DIV><FONT size="2"><BR></FONT><BR><SPAN style="font-size:10pt;">--- personal_submersibles@psubs.org wrote:</SPAN><BR><BR><SPAN style="font-size:10pt;">From: hank pronk via Personal_Submersibles <personal_submersibles@psubs.org></SPAN><BR><SPAN style="font-size:10pt;">To: Brian Cox via Personal_Submersibles <personal_submersibles@psubs.org></SPAN><BR><SPAN style="font-size:10pt;">Subject: Re: [PSUBS-MAILIST] CNG tank</SPAN><BR><SPAN style="font-size:10pt;">Date: Tue, 28 May 2019 21:40:58 +0000 (UTC)</SPAN><BR><BR><DIV style="font-size:13px;"><DIV></DIV>
<DIV>Brian,</DIV><DIV>The fittings are no problem, I just went to the hydraulic shop and got new ones.</DIV><DIV>Hank</DIV><DIV><BR></DIV>
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On Tuesday, May 28, 2019, 2:48:18 PM MDT, Brian Cox via Personal_Submersibles <personal_submersibles@psubs.org> wrote:
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<DIV><DIV><DIV style="font-family:Arial, sans-serif;font-size:10pt;"><FONT size="2">My CNG tank finally got here ! Very impressive tank, looks like there are standard fittings on it , so shouldn't be much trouble putting the appropriate valves on. </FONT><DIV><FONT size="2"><BR></FONT></DIV><DIV><FONT size="2">Brian</FONT></DIV><DIV><FONT size="2"><BR></FONT></DIV><DIV><FONT size="2"><BR></FONT></DIV></DIV>
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