<html><head><meta http-equiv="content-type" content="text/html; charset=utf-8"></head><body dir="auto"><div></div><div>Hank,</div><div>the internal pressure on the hatch dogs would need consideration.</div><div>There would be a lot of pressure over the area of the hatch.</div><div>How did you deal with that?</div><div>Alan</div><div><br></div><div><br>On 12/10/2020, at 9:43 PM, hank pronk via Personal_Submersibles <<a href="mailto:personal_submersibles@psubs.org">personal_submersibles@psubs.org</a>> wrote:<br><br></div><blockquote type="cite"><div><div class="ydpd7122c3ayahoo-style-wrap" style="font-family:Helvetica Neue, Helvetica, Arial, sans-serif;font-size:13px;"><div></div>
<div dir="ltr" data-setdir="false">Thanks guys, it makes me think this should be a design consideration when building a sub, especially a sub with flat ports. </div><div dir="ltr" data-setdir="false">All you would do is increase the size of bolts on the retaining ring, or if that is not practical then increase the number of bolts. You could do an annual pressure test of each port without removing the port and test on its actual seat. </div><div dir="ltr" data-setdir="false">Hank</div><div><br></div>
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On Monday, October 12, 2020, 1:37:16 AM MDT, James Frankland via Personal_Submersibles <<a href="mailto:personal_submersibles@psubs.org">personal_submersibles@psubs.org</a>> wrote:
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<div><div id="yiv4150141567"><div>Great idea hank. <br clear="none"><br clear="none">On Sunday, 11 October 2020, Brian Cox via Personal_Submersibles <<a rel="nofollow" shape="rect" ymailto="mailto:personal_submersibles@psubs.org" target="_blank" href="mailto:personal_submersibles@psubs.org">personal_submersibles@psubs.org</a>> wrote:<br clear="none"><div class="yiv4150141567yqt8509117866" id="yiv4150141567yqt10595"><blockquote class="yiv4150141567gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex;"><br clear="none">
Nice !<br clear="none">
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Brian<br clear="none">
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--- <a rel="nofollow" shape="rect" ymailto="mailto:personal_submersibles@psubs.org" target="_blank" href="mailto:personal_submersibles@psubs.org">personal_submersibles@psubs. org</a> wrote:<br clear="none">
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From: hank pronk via Personal_Submersibles <<a rel="nofollow" shape="rect" ymailto="mailto:personal_submersibles@psubs.org" target="_blank" href="mailto:personal_submersibles@psubs.org">personal_submersibles@psubs. org</a>><br clear="none">
To: Personal Submersibles General Discussion <<a rel="nofollow" shape="rect" ymailto="mailto:personal_submersibles@psubs.org" target="_blank" href="mailto:personal_submersibles@psubs.org">personal_submersibles@psubs. org</a>><br clear="none">
Subject: [PSUBS-MAILIST] Dome test chamber<br clear="none">
Date: Sun, 11 Oct 2020 08:59:57 -0600<br clear="none">
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