<html><head><meta http-equiv="Content-Type" content="text/html charset=us-ascii"></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space;" class="">Hi,<div class=""><br class=""></div><div class="">Any idea where are the leaks coming from - and can we fix that.</div><div class="">0.5 liters / minute is very significant. </div><div class=""><br class=""></div><div class="">Thanks,</div><div class="">Mauri</div><div class=""><br class=""></div><div class=""><br class=""><div class=""><div><blockquote type="cite" class=""><div class="">On Dec 2, 2016, at 10:21 AM, Marc McMullen <<a href="mailto:mcmullen@jlab.org" class="">mcmullen@jlab.org</a>> wrote:</div><br class="Apple-interchange-newline"><div class="">
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<div class="moz-forward-container">Hi Dave,
<p class="">It appears that 0.5Lpm was not enough flow to maintain pressure
on 2 and 6. We have increased the flow and will monitor it, and
dial it back when necessary. <br class="">
</p><p class="">Sectors 2 and 6 look to be significant leaks</p><p class="">Sector 1 flow is almost always on, but will maintain pressure.
So definitely a leak there but smaller.</p><p class="">Sector 3 appears to leak a little.</p><p class="">Sectors 4 and 5 looks insignificant.</p><p class=""><br class="">
</p><p class="">Marc<br class="">
</p>
<br class="">
<div class="moz-cite-prefix">On 12/2/2016 7:48 AM, David Anderson
wrote:<br class="">
</div>
<blockquote cite="mid:1568131400.3005695.1480682897067.JavaMail.zimbra@jlab.org" type="cite" class="">George, When you or Marc get time I need some
assistance with this gas panel. We have lost almost all pressure
on 6 and 2. Thanks! ----- Original Message ----- From: David
Anderson <dla@jlab.org class=""> To: George Jacobs <jacobsg@jlab.org class="">,
Marc Mcmullen <mcmullen@jlab.org class=""> Cc: Douglas Tilles <tilles@jlab.org class="">,
Bob Miller <rmiller@jlab.org class=""> Sent: Thu, 01 Dec 2016
08:58:43 -0500 (EST) Subject: LTCC gas system George
and Marc, I have been asked to begin leak checking the
entire LTCC gas circuit. The chambers had a thorough
leak check and min 24 hour pressure drop test before
they were hoisted and installed. Another complete leak
check of the chambers is not going to be possible due
to very limited access to the bottom windows. However
we can pressurize the system and perform pressure drop
tests to begin with. I have no knowledge of the gas
panel progress or operation so I am requested your
assistance with this. Has any leak checking of the gas
circuit itself been performed? Thanks, David </rmiller@jlab.org></tilles@jlab.org></mcmullen@jlab.org></jacobsg@jlab.org></dla@jlab.org></blockquote>
<br class="">
<pre class="moz-signature" cols="72">--
Marc McMullen
Detector Support Group
757-269-7738</pre>
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</div>
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