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<p>George,</p>
<p>Your FT Hall P&I diagram on the M drive from April 2017 shows
a mixing system, and the MVT diagram from June 2017 shows the FT
with a mixing system. Is there another drawing showing premix as
you state below?</p>
<p>Bob<br>
</p>
<br>
<div class="moz-cite-prefix">On 6/16/2017 1:47 PM, George Jacobs
wrote:<br>
</div>
<blockquote type="cite"
cite="mid:2048ce4b-f645-4b2f-a36d-82e4ab9e9ab0@jlab.org">
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It sounds like many of you are not on the mailing list for these
systems. Please contact Marc McMullen to add your email to the
list.<br>
<br>
There were several meetings about this subject in earlier this
year. The decision to use pre-mix gas in cylinders for the EEL
testing of the MVT and the FT testing in the Hall were made at
those meetings. The FT testing in the hall is contingent on it's
installation critical path. I believe it is unrealistic to believe
the FT will be installed on the TORUS and ready for gas in 14
days. When it's ready, is a question for Hall B, Bob Miller and
Doug Tilles. <br>
<br>
<b>There are 3 pressure systems associated with the MVT and FT</b><b><br>
</b><b>1) MVT EEL gas supply using pre-mix gas cylinders</b><b><br>
</b><b>2) FT Hall gas supply using pre-mix gas cylinders</b><b><br>
</b><b>3) MVT "Lite" gas mixing system</b><br>
<br>
<b>The current status of the 3 pressure systems;</b><b><br>
</b><b>1) The EEL gas supply is complete and testing of the MVT is
in progress. The pressure system requirements required ~6 weeks
to complete.</b><b><br>
</b><b>2) The FT testing in the hall on the TORUS status;</b><br>
Gas supply P&I diagram is complete, waiting on DA for approval<br>
Gas supply components spreadsheet is complete, waiting on DA for
approval<br>
Pressure systems requirements, status unknown - This is a question
for the system owner, Bob Miller, and the DA, Matt Marchlick<br>
Time estimate of when the gas supply for testing the FT will be
completed - This is a question for the system owner, Bob Miller,
and the DA, Matt Marchlick<br>
<b>3) MVT "lite" mixing system</b><br>
Gas supply P&I diagram is complete, waiting on DA for approval<br>
Gas supply components spreadsheet is complete, waiting on DA for
approval<br>
Pressure systems requirements, status unknown - This is a question
for the system owner, Bob Miller, and the DA, Matt Marchlick<br>
Quote request for the MKS mass flow controllers is out<br>
Pressure transducers are on order<br>
Time estimate of when the gas mixing system will be completed -
This is a question for the system owner, Bob Miller, and the DA,
Matt Marchlick<br>
<br>
Cheers,<br>
George<br>
<br>
<div class="moz-cite-prefix">On 3/21/2017 10:42 AM, George Jacobs
wrote:<br>
</div>
<blockquote type="cite"
cite="mid:6aedc917-ef93-fcda-c7e6-51c3a402b7d0@jlab.org">
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Please find attached diagram and components list for testing the
MVT and FT in the EEL this spring/summer. <br>
<br>
The plan is to use pre-mixed 10% C4H10 in Argon from cylinders
containing 850 liters of gas.<br>
Question: How much gas will be required for these tests? How
many cylinders should I order?<br>
The is a 4-6 week lead time on this gas, so I need to order it
ASAP.<br>
<br>
Thank you,<br>
George<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" moz-do-not-send="true">jacobsg@jlab.org</a>
(website) <a class="moz-txt-link-freetext" href="https://userweb.jlab.org/%7Ejacobsg" moz-do-not-send="true">https://userweb.jlab.org/~jacobsg</a></pre>
</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" moz-do-not-send="true">jacobsg@jlab.org</a>
(website) <a class="moz-txt-link-freetext" href="https://userweb.jlab.org/%7Ejacobsg" moz-do-not-send="true">https://userweb.jlab.org/~jacobsg</a></pre>
</blockquote>
<br>
<pre class="moz-signature" cols="72">--
Bob Miller
Hall B Lead Engineer
Jefferson Lab
757 269-7867
</pre>
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