[labnetwork] Removal of Silane Cylinder

[Collins, Deon]

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.
[cid:599d1ebb-64d1-4d8c-92e3-7689d4755fa3]

If the cylinder has a DISS 632(seen below) is rh thread
[https://www.direct.parts/images/diss-cga-632-642-1.jpg]


I hope this helps.



Deon D. Collins



Director of Facilities

The Grainger College Of Engineering UIUC
Holonyak Micro & Nanotechnology Lab
208 N Wright St Rm. 1114 | MC-249Urbana, IL 61801
217-300-7531 | deonc69 at illinois.edu<mailto:deonc69 at illinois.edu>


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________________________________
From: labnetwork <labnetwork-bounces at mtl.mit.edu> on behalf of Mike Maghiar <rmm2263 at columbia.edu>
Sent: Wednesday, September 9, 2026 9:02 AM
To: labnetwork at mtl.mit.edu <labnetwork at mtl.mit.edu>
Subject: [labnetwork] Removal of Silane Cylinder

Hi all,

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.

Because the line is attached, the cylinder can't be shipped as is, and it requires a cylinder overpack.

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.

Thank you in advance!

Thank you,
Mike Maghiar
CNI Cleanroom Director
CEPSR 1020
(212) 854-3032
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