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<p style="margin-top:0;margin-bottom:0">Hi William,</p>
<p style="margin-top:0;margin-bottom:0"><br>
</p>
<p style="margin-top:0;margin-bottom:0">Please find attached files; updated and expanded components list, updated P&I diagram, and annotated pic of assembly (for ref)</p>
<p style="margin-top:0;margin-bottom:0"><br>
</p>
<p style="margin-top:0;margin-bottom:0">Please let me know if you need any additional info.</p>
<p style="margin-top:0;margin-bottom:0"><br>
</p>
<p style="margin-top:0;margin-bottom:0">Happy Holidays!<br>
</p>
<p style="margin-top:0;margin-bottom:0"><br>
</p>
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<div>-- <br>
George Jacobs<br>
Jefferson Lab (TJNAF)<br>
STE 12<br>
12000 Jefferson Ave.<br>
Newport News, VA 23606<br>
<br>
(office) 757-269-7021<br>
<br>
(cell) 757-876-0480<br>
<br>
(email) jacobsg@jlab.org<br>
<br>
(website) https://userweb.jlab.org/~jacobsg</div>
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<div id="divRplyFwdMsg" dir="ltr"><font style="font-size:11pt" face="Calibri, sans-serif" color="#000000"><b>From:</b> William Crahen <wcrahen@jlab.org><br>
<b>Sent:</b> Friday, December 14, 2018 2:43 PM<br>
<b>To:</b> George Jacobs; Tyler Lemon; Bob Miller; dsg-rich<br>
<b>Subject:</b> Re: [Dsg-rich] RICH N2 system automatic backup</font>
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<p>George, I need more information about this system- please provide the following:</p>
<p>indicate line sizes and material on the diagram. I also need the corresponding attachment fittings information, manufacturer and part number. If the tubing is plastic, part numbers for the tube inserts if required by the manufacturer. The same information
is needed on the parts list you provided- some are listing manufacturer info (Grainger is a distributor, not a manufacturer).<br>
</p>
<p>there is a relief valve on this system- where is the sizing calculation?</p>
<p>what is the pressure system number associated with this system?</p>
<p>where is this system physically located?</p>
<p>Are there actual mechanical drawings of this system?<br>
</p>
<p><br>
</p>
<div class="x_moz-cite-prefix">On 12/14/2018 1:18 PM, George Jacobs wrote:<br>
</div>
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<p>Please find attached files for the RICH N2 purge back-up supply.<br>
</p>
<p><br>
</p>
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<p><span id="x_ms-rterangepaste-start"></span></p>
<div>-- <br>
George Jacobs<br>
Jefferson Lab (TJNAF)<br>
STE 12<br>
12000 Jefferson Ave.<br>
Newport News, VA 23606<br>
<br>
(office) 757-269-7021<br>
<br>
(cell) 757-876-0480<br>
<br>
(email) <a class="x_moz-txt-link-abbreviated OWAAutoLink" href="mailto:jacobsg@jlab.org" id="LPlnk785596" previewremoved="true">
jacobsg@jlab.org</a><br>
<br>
(website) <a class="x_moz-txt-link-freetext OWAAutoLink" href="https://userweb.jlab.org/~jacobsg" id="LPlnk897214" previewremoved="true">
https://userweb.jlab.org/~jacobsg</a></div>
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<div id="x_divRplyFwdMsg" dir="ltr"><b>From:</b> Dsg-rich <a class="x_moz-txt-link-rfc2396E OWAAutoLink" href="mailto:dsg-rich-bounces@jlab.org" id="LPlnk944441" previewremoved="true">
<dsg-rich-bounces@jlab.org></a> on behalf of Tyler Lemon <a class="x_moz-txt-link-rfc2396E OWAAutoLink" href="mailto:tlemon@jlab.org" id="LPlnk566255" previewremoved="true">
<tlemon@jlab.org></a><br>
<b>Sent:</b> Friday, December 14, 2018 12:40 PM<br>
<b>To:</b> Bob Miller; Bill Crahen; dsg-rich<br>
<b>Subject:</b> Re: [Dsg-rich] RICH N2 system automatic backup
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<p>Hello George,</p>
<p><br>
</p>
<p>Can you send Bob Miller and Bill Crahen the drawing, pressure systems numbers and any other documentation you have on the RICH N2 automatic back up?</p>
<p><br>
</p>
<p>Bill will be the DA for it.<br>
</p>
<p><br>
</p>
<p><br>
</p>
<p>Best regards,</p>
<p>Tyler<br>
</p>
<br>
<br>
<div>
<hr tabindex="-1">
<div id="x_x_divRplyFwdMsg" dir="ltr"><b>From:</b> Bob Miller <a class="x_moz-txt-link-rfc2396E OWAAutoLink" href="mailto:rmiller@jlab.org" id="LPlnk81985" previewremoved="true">
<rmiller@jlab.org></a><br>
<b>Sent:</b> Friday, December 14, 2018 9:25 AM<br>
<b>To:</b> Tyler Lemon<br>
<b>Cc:</b> Bill Crahen; Amrit Yegneswaran<br>
<b>Subject:</b> Fwd: Re: [Dsg-rich] RICH N2 system automatic backup
<div> </div>
</div>
<div>
<p>Hi Tyler,</p>
<p><br>
</p>
<p>Please send the drawings, pressure systems number, and whatever documentation you have to Bill Crahen and myself.</p>
<p><br>
</p>
<p>Bill will be the DA on this project.</p>
<p><br>
</p>
<p>Regards,</p>
<p>Bob<br>
</p>
<div class="x_x_x_moz-forward-container"><br>
<br>
-------- Forwarded Message --------
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<th nowrap="nowrap">Subject: </th>
<td>Re: [Dsg-rich] RICH N2 system automatic backup</td>
</tr>
<tr>
<th nowrap="nowrap">Date: </th>
<td>Wed, 12 Dec 2018 19:39:33 -0500</td>
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<tr>
<th nowrap="nowrap">From: </th>
<td>Amrit Yegneswaran <a class="x_x_x_moz-txt-link-rfc2396E x_x_OWAAutoLink" href="mailto:yeg@jlab.org" id="LPlnk406820" previewremoved="true">
<yeg@jlab.org></a></td>
</tr>
<tr>
<th nowrap="nowrap">To: </th>
<td>Marco Contalbrigo <a class="x_x_x_moz-txt-link-rfc2396E x_x_OWAAutoLink" href="mailto:mcontalb@fe.infn.it" id="LPlnk22469" previewremoved="true">
<mcontalb@fe.infn.it></a>, Patrizia Rossi <a class="x_x_x_moz-txt-link-rfc2396E x_x_OWAAutoLink" href="mailto:rossi@jlab.org" id="LPlnk718032" previewremoved="true">
<rossi@jlab.org></a>, Bob Miller <a class="x_x_x_moz-txt-link-rfc2396E x_x_OWAAutoLink" href="mailto:rmiller@jlab.org" id="LPlnk5137" previewremoved="true">
<rmiller@jlab.org></a></td>
</tr>
<tr>
<th nowrap="nowrap">CC: </th>
<td>dsg-rich <a class="x_x_x_moz-txt-link-rfc2396E x_x_OWAAutoLink" href="mailto:dsg-rich@jlab.org" id="LPlnk700658" previewremoved="true">
<dsg-rich@jlab.org></a></td>
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<p>bob,</p>
<p>please assign a design authority for the analysis and approval of the system.</p>
<p>thanks <br>
</p>
<p>amrit<br>
</p>
<br>
<br>
<div>
<hr tabindex="-1">
<div id="x_x_x_divRplyFwdMsg" dir="ltr"><b>From:</b> Dsg-rich <a class="x_x_x_moz-txt-link-rfc2396E x_x_OWAAutoLink" href="mailto:dsg-rich-bounces@jlab.org" id="LPlnk967199" previewremoved="true">
<dsg-rich-bounces@jlab.org></a> on behalf of Marco Contalbrigo <a class="x_x_x_moz-txt-link-rfc2396E x_x_OWAAutoLink" href="mailto:mcontalb@fe.infn.it" id="LPlnk455803" previewremoved="true">
<mcontalb@fe.infn.it></a><br>
<b>Sent:</b> Wednesday, December 12, 2018 3:33 PM<br>
<b>To:</b> Patrizia Rossi<br>
<b>Cc:</b> dsg-rich<br>
<b>Subject:</b> Re: [Dsg-rich] RICH N2 system automatic backup
<div> </div>
</div>
<div class="x_x_x_BodyFragment"><span>
<div class="x_x_x_PlainText">Dear Tyler,<br>
thank to DSG for this nice upgrade!<br>
Marco.<br>
<br>
On Wed, 12 Dec 2018, Patrizia Rossi wrote:<br>
<br>
> Very appreciated Christmas gift!! Thank you Tyler and DSG people!!<br>
> Patrizia <br>
> <br>
> Sent from my iPhone<br>
> <br>
> On Dec 12, 2018, at 3:13 PM, Tyler Lemon <a class="x_x_x_moz-txt-link-rfc2396E x_x_OWAAutoLink" href="mailto:tlemon@jlab.org" id="LPlnk671870" previewremoved="true">
<tlemon@jlab.org></a> wrote:<br>
><br>
> Hello,<br>
> <br>
><br>
> DSG has developed a system to automatically switch RICH to a back up<br>
> bank of nitrogen in the event that Hall B's main nitrogen supply is<br>
> stopped.<br>
> <br>
><br>
> The system is designed to use a pneumatic valve operated using the<br>
><br>
> pressure from the main N2 supply line that will open if that supply<br>
> pressure drops. The open pneumatic valve will then allow N2 to flow to<br>
> RICH from a bank of nitrogen bottles. Attached is a revised RICH<br>
> nitrogen system diagram showing the new automatic switch-over<br>
> components.<br>
> <br>
><br>
> George has assembled the new components and DSG would like to test them<br>
> at the beginning of next year after the holidays. To be able to do any<br>
> sort of testing, the components and test procedure will need to undergo<br>
> a pressure systems analysis by a Design Authority (DA).<br>
> <br>
><br>
> DSG will provide the necessary documentation to the DA once one is<br>
> requested and assigned.<br>
> <br>
><br>
> Best regards,<br>
><br>
> Tyler<br>
><br>
> <RICH-N2-valve panel-REV2..pdf><br>
><br>
> _______________________________________________<br>
> Dsg-rich mailing list<br>
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Dsg-rich@jlab.org</a><br>
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