[labnetwork] Corrosive exhaust material of construction

[Kuhn, Jeffrey G]

Good Morning Iulian,

At Birck, our corrosive exhaust is constructed from fiberglass reinforced plastic (FRP). The material meets the FM Global 4922 standard for cleanroom use. The main advantage to using FRP is that duct detectors and the associated monitoring system are not required due to the material's flame propagation characteristics. The main drawback to FRP is its cost. The duct and fittings are quite expensive, although that cost is somewhat mitigated by not needing a duct detection system. 

Our FRP ducting has been in service since October 2005 and has been essentially trouble free. It comprises our entire corrosive exhaust system. FRP is also used outdoors for the ducts leading to and from our exhaust scrubber and has weathered the extremes of Indiana weather pretty well. 

Regards,

Jeff Kuhn
Facility Engineer
Birck Nanotechnology Center
Purdue University
1205 W. State St.
West Lafayette, IN 47907
Ph:  (765) 496-8329
Fax: (765) 496-2018



-----Original Message-----
From: labnetwork-bounces at mtl.mit.edu [mailto:labnetwork-bounces at mtl.mit.edu] On Behalf Of Iulian Codreanu
Sent: Thursday, December 19, 2013 1:52 PM
To: Fab Network
Subject: [labnetwork] Corrosive exhaust material of construction

Dear Lab Network,

I, once again, seek your wisdom.  Could you please share with me the type of material used for your corrosive exhaust system, how long you had it in operation, if you had any problems with it, and what you would do differently of you were in a position to do so?

Thank you very much for your help.

Iulian

--
iulian Codreanu, Ph.D.
Director of Operations, UD NanoFab
University of Delaware
149 Evans Hall
Newark, DE 19716
302-831-2784


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