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If this is a CGA fitting on the cylinder, I would like to point out that the dashed lines on the fitting designate it as a lh thread connection on CGA connections. </div>
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<img style="max-width: 1171px;" size="366993" data-outlook-trace="F:1|T:1" src="cid:599d1ebb-64d1-4d8c-92e3-7689d4755fa3"></div>
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If the cylinder has a DISS 632(seen below) is rh thread</div>
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<img id="image_0" width="334" height="334" style="width: 334px; height: 334px;" src="https://www.direct.parts/images/diss-cga-632-642-1.jpg"></div>
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I hope this helps.</div>
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<span style="color: rgb(0, 32, 96);"><b>Deon D. Collins</b></span></p>
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<span style="color: rgb(0, 32, 96);"><b> </b></span></p>
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<span style="color: rgb(0, 32, 96);"><br>
<i>Director of Facilities</i></span></p>
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<span style="color: rgb(0, 32, 96);"><i>The Grainger College Of Engineering UIUC</i><br>
Holonyak Micro & Nanotechnology Lab</span><span style="color: rgb(31, 73, 125);"><br>
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<span style="color: rgb(31, 73, 125);"><u> </u></span></p>
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<span style="font-size: 10pt; color: rgb(163, 35, 139);"><b>Life begins at the end of your comfort zone.
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<span style="font-size: 10pt; color: rgb(163, 35, 139);"><b> Propeck Amanda</b></span></p>
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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 Mike Maghiar <rmm2263@columbia.edu><br>
<b>Sent:</b> Wednesday, September 9, 2026 9:02 AM<br>
<b>To:</b> labnetwork@mtl.mit.edu <labnetwork@mtl.mit.edu><br>
<b>Subject:</b> [labnetwork] Removal of Silane Cylinder</font>
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<div>Hi all, </div>
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<div>Columbia Nano has a silane cylinder that needs disposal. Unfortunately, the gas line can't be removed from the cylinder because it's seized on, so I disconnected the line. It remains connected to the cylinder and is about 4 feet long and is bendable. The
cylinder is around 20-30% full and is small, size 40 CF. </div>
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<div>Because the line is attached, the cylinder can't be shipped as is, and it requires a cylinder overpack. </div>
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<div>I was wondering if anyone has any recommendations for a company that can do this type of work that isn't Veolia (already contacted them) or if someone has dealt with a stuck CGA fitting on a silane cylinder. </div>
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<div>Thank you in advance! </div>
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<font color="#3d85c6"><b>Thank you, <br>
Mike Maghiar</b></font>
<div><font color="#3d85c6"><b>CNI Cleanroom Director</b></font></div>
<div><font color="#3d85c6"><b>CEPSR 1020</b></font></div>
<div><font color="#3d85c6"><b>(212) 854-3032</b></font></div>
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