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I had all SS tubing to brass connections replaced with nylon tubing
or brass port connectors. You will need to point out the connections
your referring to.<br>
<br>
If the next step requires witnessing of the assembly of the panel, I
just need to have a time and date for this to occur.<br>
<br>
Thanks,<br>
George<br>
<br>
<div class="moz-cite-prefix">On 2/7/2017 2:22 PM, David Meekins
wrote:<br>
</div>
<blockquote
cite="mid:1263880262.4494464.1486495328691.JavaMail.zimbra@jlab.org"
type="cite">
<div style="font-family: arial,helvetica,sans-serif; font-size:
14pt; color: #000000">
<div>Hi George,</div>
<div><br data-mce-bogus="1">
</div>
<div>I went to look at the panel. There are still stainless to
brass connections. Some sections have been replaced by
plastic. I would recommend that you all consider copper. With
the steel vessel I can't really imagine that surface
contamination from copper tube will be an issue.</div>
<div><br data-mce-bogus="1">
</div>
<div>If plastic is the way that it must be then we will have to
have a few of these joints examined while they are being made
up and documented. If we can use copper only the final
examination will be required.</div>
<div><br data-mce-bogus="1">
</div>
<div>In short there is still work to be done prior to a final
examination and test.</div>
<div><br>
</div>
<div data-marker="__SIG_PRE__">David Meekins<br>
Staff Scientist<br>
Thomas Jefferson National Accelerator Facility<br>
12000 Jefferson Ave<br>
Newport News Va. 23606<br>
<br>
Office: 757-269-5434<br>
Cell: 757-968-9076</div>
<br>
<hr id="zwchr" data-marker="__DIVIDER__">
<div data-marker="__HEADERS__"><b>From: </b>"George Jacobs"
<a class="moz-txt-link-rfc2396E" href="mailto:jacobsg@jlab.org"><jacobsg@jlab.org></a><br>
<b>To: </b>"David Meekins" <a class="moz-txt-link-rfc2396E" href="mailto:meekins@jlab.org"><meekins@jlab.org></a>,
"dsg-rich" <a class="moz-txt-link-rfc2396E" href="mailto:dsg-rich@jlab.org"><dsg-rich@jlab.org></a><br>
<b>Sent: </b>Tuesday, February 7, 2017 10:52:25 AM<br>
<b>Subject: </b>RICH N2 purge and air cooling valve panel<br>
</div>
<br>
<div data-marker="__QUOTED_TEXT__">Hi Dave,<br>
<br>
The RICH valve panel in EEL rm 125 is ready for the next step.
Component materials were changed to comply with pressure
system requirements. <br>
<br>
George<br>
<pre class="moz-signature">--
George Jacobs
Jefferson Lab (TJNAF)
STE 12
12000 Jefferson Ave.
Newport News, VA 23606
(office) 757-269-7115
(cell) 757-876-0480
(email) <a moz-do-not-send="true" class="moz-txt-link-abbreviated" href="mailto:jacobsg@jlab.org" target="_blank">jacobsg@jlab.org</a>
(website) <a moz-do-not-send="true" class="moz-txt-link-freetext" href="https://userweb.jlab.org/%7Ejacobsg" target="_blank">https://userweb.jlab.org/~jacobsg</a></pre>
<br>
</div>
</div>
</blockquote>
<br>
<pre class="moz-signature" cols="72">--
George Jacobs
Jefferson Lab (TJNAF)
STE 12
12000 Jefferson Ave.
Newport News, VA 23606
(office) 757-269-7115
(cell) 757-876-0480
(email) <a class="moz-txt-link-abbreviated" href="mailto:jacobsg@jlab.org">jacobsg@jlab.org</a>
(website) <a class="moz-txt-link-freetext" href="https://userweb.jlab.org/~jacobsg">https://userweb.jlab.org/~jacobsg</a></pre>
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