[labnetwork] Running process gas lines out of bunkers

[Schweiger, Dennis]

Vito,

Good morning.  Depending on your wall construction, the separation distance between your "bunkers" and your facility, and the fact that you're more than likely using ¼" coaxial lines (1/2" OD on the jacket), the simplest thing we've found that works well is to use electrical conduit as your sleeve through the block wall.  If you use rigid material, it can be threaded on the ends, and the caps will provide the "fire separation" for the future passages.  You may want to consider a separation distance of about 2" between the sleeves so that a weld head will fit in to perform the operation.

If you'd like to discuss this further, give me a call.  I've installed thousands of feet of coaxial tubing in a variety of process facilities.  You're also welcome to come out and visit, and see what we've done at UofM.

Dennis Schweiger
Facilities Manager

Lurie Nanofabrication Facility
University of Michigan
1301 Beal Ave.
Ann Arbor, MI 48109-2122

734.647.2055 Ofc
877.471.6208 Fax
734.320.4474 Cell

"People can be divided into 3 groups - those that make things happen, those that watch things happen, and those that wonder what happened."


From: labnetwork-bounces at mtl.mit.edu [mailto:labnetwork-bounces at mtl.mit.edu] On Behalf Of Vito Logiudice
Sent: Monday, May 09, 2011 1:34 PM
To: labnetwork at mtl.mit.edu
Subject: [labnetwork] Running process gas lines out of bunkers

Dear all,

I would appreciate the community's insights  as to how to best run single or coax process gas lines out from concrete gas storage rooms (bunkers), all while satisfying building & fire codes for such enclosures. In our application, the rooms are located outside the perimeter of the cleanroom (currently under construction). One of the rooms will be dedicated to toxic/corrosive process gas cabinets and the other to flammable/pyrophoric cabinets. We require some sort of transition in the concrete walls of the bunkers which would allow for simple future expansion as to number and types (single vs coax) of lines out of each room.

Many thanks in advance for any insights.

Regards,
Vito Logiudice

Vito Logiudice  P.Eng.
Director of Operations
QNC & RAC Nanofabrication Facilities

University of Waterloo
200 University Avenue West
Waterloo, ON
Canada   N2L 3G1
Tel:  1-519-888-4567  ext. 38703
Fax: 1-519-888-7610
Cel:  1-519-500-2538
Email: vlogiudi at uwaterloo.ca

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