<div dir="ltr">Thanks all for your input.<div><br></div><div>The Meyer Tool is a good lead. I'll give them a call. The pressure vessel company I had used earlier has gone out of business.</div></div><div class="gmail_extra"><br clear="all"><div><div>Dennis</div><div> </div><div>734.647.2055 Ofc</div><div> </div><div>"People can be divided into 3 groups - those that make things happen, those that watch things happen, and those that wonder what happened." Within which group do you belong?</div></div>
<br><div class="gmail_quote">On Tue, Oct 28, 2014 at 11:34 AM, John Shott <span dir="ltr"><<a href="mailto:shott@stanford.edu" target="_blank">shott@stanford.edu</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
<div bgcolor="#FFFFFF" text="#000000">
Steve:<br>
<br>
Thanks for your contributions to this list ... you are one of the
regular posters here from whom I always learn something useful.<br>
<br>
I think that your referral to ASME is exactly on target. In fact, I
found the following link that describes some of the issues and
challenges associated with trying to use Conflat flanges in
pressure-rated vessels:<br>
<br>
<a href="http://mtm-inc.com/reduce_project_risk/asme_commercial_vacuum_flanges/" target="_blank">http://mtm-inc.com/reduce_project_risk/asme_commercial_vacuum_flanges/</a><br>
<br>
Dennis, it sounds as if Meyer Tool & Mfg might be a good source
of information if you are looking at exploring this issue further.<br>
<br>
Good luck,<br>
<br>
John<br>
<br>
<div>On 10/23/2014 7:14 AM, Paolini, Steven
wrote:<br>
</div>
<blockquote type="cite">
<div>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d">Dennis,<u></u><u></u></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d">In
my humble opinion, I would refer to ASME for any pressure
related component use, they are quite particular in their
specifying of vessels and components.<u></u><u></u></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d"><u></u> <u></u></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d">Steve
Paolini<u></u><u></u></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d">Equipment
dood<u></u><u></u></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d">Harvard
University Center for Nanoscale Systems.<u></u><u></u></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d"><u></u> <u></u></span></p>
<p class="MsoNormal"><b><span style="font-size:10.0pt;font-family:"Tahoma","sans-serif"">From:</span></b><span style="font-size:10.0pt;font-family:"Tahoma","sans-serif"">
<a href="mailto:labnetwork-bounces@mtl.mit.edu" target="_blank">labnetwork-bounces@mtl.mit.edu</a>
[<a href="mailto:labnetwork-bounces@mtl.mit.edu" target="_blank">mailto:labnetwork-bounces@mtl.mit.edu</a>]
<b>On Behalf Of </b>Dennis Schweiger<br>
<b>Sent:</b> Wednesday, October 22, 2014 10:57 AM<br>
<b>To:</b> Fab Network<br>
<b>Subject:</b> [labnetwork] Knife edge flange pressure
application<u></u><u></u></span></p>
<p class="MsoNormal"><u></u> <u></u></p>
<div>
<p class="MsoNormal">Good morning all,<u></u><u></u></p>
<div>
<p class="MsoNormal"><u></u> <u></u></p>
</div>
<div>
<p class="MsoNormal">Is anyone out there using a standard
vacuum style knife-edge flange (Conflat), in a pressure
delivery application? If so, I'd be interested to hear
your application, as well as any information you might
have in regard to certifying the usage for system
integrity.<u></u><u></u></p>
</div>
<div>
<p class="MsoNormal"><u></u> <u></u></p>
</div>
<div>
<p class="MsoNormal">Many years ago, I designed some vacuum
chambers that had to have a 150PSI pressure rating as a
process safety, and we used knife-edge flanges on the
chamber. The knife-edge flanges were then certified as
part of the pressure vessel rating on the entire vacuum
chamber. The application I have now is strictly flange
related, they're not part of a larger system.<u></u><u></u></p>
</div>
<div>
<p class="MsoNormal"><u></u> <u></u></p>
</div>
<div>
<p class="MsoNormal">Thanks,<u></u><u></u></p>
</div>
<div>
<p class="MsoNormal"><br clear="all">
<u></u><u></u></p>
<div>
<div>
<p class="MsoNormal">DennisSchweiger<u></u><u></u></p>
</div>
<div>
<p class="MsoNormal">University of Michigan/LNF<u></u><u></u></p>
</div>
<div>
<p class="MsoNormal"> <u></u><u></u></p>
</div>
<div>
<p class="MsoNormal"><a href="tel:734.647.2055" value="+17346472055" target="_blank">734.647.2055</a> Ofc<u></u><u></u></p>
</div>
</div>
</div>
</div>
</div>
<br>
<fieldset></fieldset>
<br>
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</pre>
</blockquote>
<br>
</div>
</blockquote></div><br></div>