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<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 id="yiv1307271960"><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 clear="none"></font></div><div><font size="2">Brian</font></div><div><font size="2"><br clear="none"></font></div><div><font size="2"><br clear="none"></font><br clear="none"><span style="font-size:10pt;">--- personal_submersibles@psubs.org wrote:</span><br clear="none"><br clear="none"><span style="font-size:10pt;">From: hank pronk via Personal_Submersibles <personal_submersibles@psubs.org></span><br clear="none"><span style="font-size:10pt;">To: Brian Cox via Personal_Submersibles <personal_submersibles@psubs.org></span><br clear="none"><span style="font-size:10pt;">Subject: Re: [PSUBS-MAILIST] CNG tank</span><br clear="none"><span style="font-size:10pt;">Date: Tue, 28 May 2019 22:11:48 +0000 (UTC)</span><br clear="none"><br clear="none"><div style="font-size:13px;"><div></div>
<div>Not on mine, all right hand thread</div><div>Hank</div><div><br clear="none"></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 clear="none"></font></div><div><font size="2"><br clear="none"></font><br clear="none"><span style="font-size:10pt;">--- personal_submersibles@psubs.org wrote:</span><br clear="none"><br clear="none"><span style="font-size:10pt;">From: hank pronk via Personal_Submersibles <personal_submersibles@psubs.org></span><br clear="none"><span style="font-size:10pt;">To: Brian Cox via Personal_Submersibles <personal_submersibles@psubs.org></span><br clear="none"><span style="font-size:10pt;">Subject: Re: [PSUBS-MAILIST] CNG tank</span><br clear="none"><span style="font-size:10pt;">Date: Tue, 28 May 2019 21:40:58 +0000 (UTC)</span><br clear="none"><br clear="none"><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 clear="none"></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 clear="none"></font></div><div><font size="2">Brian</font></div><div><font size="2"><br clear="none"></font></div><div><font size="2"><br clear="none"></font></div></div>
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