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Hi Kostis,</div>
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The response is same for KAUST-NCL. The fire alarm will trigger the TGM and that will turn off the valves, gas cabinets and VMBs. And vice-versa as well. Any TGM alarm from the NCL will trigger Building evacuation through the Fire System. </div>
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All the best,</div>
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Ahad</div>
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Nanofabrication Core Lab</div>
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4700 King Abdullah University of Science and Technology<br>
0253 Building 3, Thuwal 23955-6900, Kingdom of Saudi Arabia<br>
Tel:+966 12 808 2348</div>
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<a href="https://corelabs.kaust.edu.sa/visitor-information">Visit The Core Labs</a></div>
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<div id="divRplyFwdMsg" dir="ltr"><font face="Calibri, sans-serif" style="font-size:11pt" color="#000000"><b>From:</b> labnetwork <labnetwork-bounces@mtl.mit.edu> on behalf of Iulian Codreanu <codreanu@udel.edu><br>
<b>Sent:</b> Wednesday, April 22, 2026 2:51 PM<br>
<b>To:</b> Michelakis, Kostis <kostis@slac.stanford.edu><br>
<b>Cc:</b> labnetwork@mtl.mit.edu <labnetwork@mtl.mit.edu><br>
<b>Subject:</b> [EXTERNAL] Re: [labnetwork] Automatic gas shutoff at the source</font>
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<div>Hi Kostis,<br>
<br>
Here at UDel it has been mandated that a fire alarm input to the TGMS closes all gas valves.
<pre class="x_moz-signature" cols="72">iulian Codreanu, Ph.D.
Director, Nanofabrication Facility
University of Delaware
Harker ISE Lab, Room 163
221 Academy Street
Newark, DE 19716
302-831-2784
<a class="x_moz-txt-link-freetext" href="https://urldefense.com/v3/__https://udnf.udel.edu__;!!Nmw4Hv0!y-HyrJbHKH6wuGBDErykMDLIVRAlsNGSR-6J0ORaDPxIjd2N9L6eqdNFho961l2du0Fg8MTplJRQWPVa9nhQySo$">https://udnf.udel.edu</a></pre>
<br>
<div class="x_moz-cite-prefix">On 4/21/2026 3:37 PM, Michelakis, Kostis wrote:<br>
</div>
<blockquote type="cite"><font size="4" face="Times New Roman">Dear Labnetwork colleagues,<br>
<br>
We are reviewing our emergency procedures and I would like to ask, specifically for your hazardous and toxic gases, in the case of a fire alarm being triggered, if you make use of the building's Fire Alarm Control Panel (FACP) respective signal to automatically
shutoff gases at the source.<br>
<br>
We have at our disposal a range of engineering controls to shutoff gases at the source, but I am specifically interested to learn if the method of using directly the fire alarm signal has been mandated or otherwise chosen in your setting.<br>
<br>
Thank you in advance for your consideration,<br>
Kostis<br>
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<p style="margin:0in"><b><span style="font-size:9.0pt; font-family:"Arial",sans-serif; color:black">Kostis Michelakis, PhD</span></b></p>
<p class="x_MsoNormal" style="margin-bottom:0in"><span style="font-size:9.0pt; line-height:115%; font-family:"Arial",sans-serif; color:black">DMF Lab Manager</span></p>
<p class="x_MsoNormal" style="margin-bottom:0in"><span style="font-size:9.0pt; line-height:115%; font-family:"Arial",sans-serif; color:black"><a href="mailto:kostis@slac.stanford.edu" class="x_moz-txt-link-freetext">kostis@slac.stanford.edu</a></span></p>
<p class="x_MsoNormal" style="margin-bottom:0in"><b><span style="font-size:9.0pt; line-height:115%; font-family:"Arial",sans-serif; color:#861106">SLAC National Accelerator Laboratory </span></b><span style="font-size:9.0pt; line-height:115%; font-family:"Arial",sans-serif; color:#861106"></span></p>
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