In a recent Q&A on the FacilityCare website, consultant Brad Keyes answered a question about installing fire dampers in a pneumatic tube system.
Q: Is is necessary to install dampers inside the pneumatic tube system where the tube run penetrates a firewall or floor?
A: I don’t see this as a requirement with the NFPA codes and standards. It is possible that a local or state authority made this a requirement and your vendor is simply being overzealous in making sure the job is done right.
Make the vendor show you the standard that he says requires dampers. Then see if it applies to your situation.
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