<div dir="ltr"><div>Hi Alan,</div><div>Make sure you check the cylinder connection on the first stage if you start to go down the official "nitrox version" path.  Being in NZ you are almost certainly going to want a standard "DIN" connection.  There are some European standards and conventions which see a different connection (M26) used for high-oxygen diving mixes, which the official Apeks nitrox versions are likely to be.  <br></div><div><br></div><div>Ie. you probably want an O2-clean standard version rather than the nitrox version of the DS4.  Worth double checking the cylinder connection before purchasing.<br></div><div><br></div><div>Cheers,</div><div>Steve<br></div></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Tue, Mar 16, 2021 at 6:37 AM Alan James via Personal_Submersibles <<a href="mailto:personal_submersibles@psubs.org">personal_submersibles@psubs.org</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div><div style="font-family:Helvetica Neue,Helvetica,Arial,sans-serif;font-size:16px"><div></div>
        <div>Emile, </div><div>the DS4 looks good; I see they have a nitrox version that is suitable for 100% O2 (DIN only). </div><div>Alan</div><div><br></div><div><br></div>
        
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                    On Monday, March 15, 2021, 11:20:38 PM GMT+13, via Personal_Submersibles <<a href="mailto:personal_submersibles@psubs.org" target="_blank">personal_submersibles@psubs.org</a>> wrote:
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                <div><div id="gmail-m_2558018664458201086ydp98840745yiv8993751942"><div><div><p><span>Alan,</span></p><p><span>  </span></p><p><span lang="EN-US">For now I have the best results with Apeks DS4 regulators. They don’t freeze either. I was asking for a possible mission to 400 M</span></p><p><span lang="EN-US">  </span></p><p><span lang="EN-US">Br, Emile</span></p><p><span lang="EN-US">  </span></p><div id="gmail-m_2558018664458201086ydp98840745yiv8993751942yqt87628"><div><div style="border-color:rgb(225,225,225) currentcolor currentcolor;border-style:solid none none;border-width:1pt medium medium;padding:3pt 0cm 0cm"><p><b>Van:</b> Personal_Submersibles <<a href="mailto:personal_submersibles-bounces@psubs.org" target="_blank">personal_submersibles-bounces@psubs.org</a>> <b>Namens </b>Alan James via Personal_Submersibles<br clear="none"><b>Verzonden:</b> dinsdag 16 februari 2021 23:06<br clear="none"><b>Aan:</b> via Personal_Submersibles <<a href="mailto:personal_submersibles@psubs.org" target="_blank">personal_submersibles@psubs.org</a>><br clear="none"><b>Onderwerp:</b> Re: [PSUBS-MAILIST] first stage regulator</p></div></div><p>  </p><div><div><p><span style="font-size:12pt;font-family:sans-serif">Emile, </span></p></div><div><p><span style="font-size:12pt;font-family:sans-serif">I would think the only limitation would be the pressure in your tank. Below 6000ft with a bottle filled to 3000psi, nothing would come out of it anyway. </span></p></div><div><p><span style="font-size:12pt;font-family:sans-serif">Lots of different first stage designs; maybe find a diagram of your particular model and study it to be sure! </span></p></div><div><p><span style="font-size:12pt;font-family:sans-serif">What are you thinking of using it for? </span></p></div><div><p><span style="font-size:12pt;font-family:sans-serif">Alan</span></p></div><div><p><span style="font-size:12pt;font-family:sans-serif">  </span></p></div><div><p><span style="font-size:12pt;font-family:sans-serif">  </span></p></div><div><p><span style="font-size:12pt;font-family:sans-serif">  </span></p></div><div id="gmail-m_2558018664458201086ydp98840745yiv8993751942ydpccc8568byahoo_quoted_3672910110"><div><div><p><span style="font-size:10pt;font-family:sans-serif;color:rgb(38,40,42)">On Wednesday, February 17, 2021, 10:49:55 AM GMT+13, via Personal_Submersibles <<a shape="rect" href="mailto:personal_submersibles@psubs.org" rel="nofollow" target="_blank">personal_submersibles@psubs.org</a>> wrote: </span></p></div><div><p><span style="font-size:10pt;font-family:sans-serif;color:rgb(38,40,42)">  </span></p></div><div><p><span style="font-size:10pt;font-family:sans-serif;color:rgb(38,40,42)">  </span></p></div><div><div id="gmail-m_2558018664458201086ydp98840745yiv8993751942ydpccc8568byiv4889935428"><div><div><p><span style="font-size:10pt;font-family:sans-serif;color:rgb(38,40,42)">Hi,</span></p><p><span style="font-size:10pt;font-family:sans-serif;color:rgb(38,40,42)"> </span></p><p><span style="font-size:10pt;font-family:sans-serif;color:rgb(38,40,42)" lang="EN-GB">Anyone knows till how deep you can use a first stage (Apeks) regulator? </span><span style="font-size:10pt;font-family:sans-serif;color:rgb(38,40,42)"></span></p><p><span style="font-size:10pt;font-family:sans-serif;color:rgb(38,40,42)" lang="EN-GB"> </span><span style="font-size:10pt;font-family:sans-serif;color:rgb(38,40,42)"></span></p><p><span style="font-size:10pt;font-family:sans-serif;color:rgb(38,40,42)">Emile D.L. van Essen</span></p><p><span style="font-size:10pt;font-family:sans-serif;color:rgb(38,40,42)"> </span></p></div></div></div><p><span style="font-size:10pt;font-family:sans-serif;color:rgb(38,40,42)">_______________________________________________<br clear="none">Personal_Submersibles mailing list<br clear="none"><a shape="rect" href="mailto:Personal_Submersibles@psubs.org" rel="nofollow" target="_blank">Personal_Submersibles@psubs.org</a><br clear="none"><a shape="rect" href="http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles" rel="nofollow" target="_blank">http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles</a><br clear="none"><br clear="none"></span></p></div></div></div></div></div></div></div></div><div id="gmail-m_2558018664458201086ydp98840745yqt72498">_______________________________________________<br clear="none">Personal_Submersibles mailing list<br clear="none"><a shape="rect" href="mailto:Personal_Submersibles@psubs.org" rel="nofollow" target="_blank">Personal_Submersibles@psubs.org</a><br clear="none"><a shape="rect" href="http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles" rel="nofollow" target="_blank">http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles</a><br clear="none"></div></div>
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