Dynamic fire damper listing
Dynamic fire damper listing
(OP)
I have been specifying Ruskin DIBD-2 fire dampers since I started my career
It has been brought to my attention that those dampers are not UL listed in horizontal installations for sizes larger than 24x24
http://database.ul.com/cgi-bin/XYV/template/LISEXT/1FRAME/showpage.html?name=EMME.R5531&ccnshorttitle=Dampers+for+Fire+Barrier+and+Smoke+Applications&objid=1075829623&cfgid=1073741824&version=versionless&parent_id=1073986213&sequence=1
Apparently this is the same for Prefco, Nailer, etc
What have you been specifying?
It has been brought to my attention that those dampers are not UL listed in horizontal installations for sizes larger than 24x24
http://database.ul.com/cgi-bin/XYV/template/LISEXT/1FRAME/showpage.html?name=EMME.R5531&ccnshorttitle=Dampers+for+Fire+Barrier+and+Smoke+Applications&objid=1075829623&cfgid=1073741824&version=versionless&parent_id=1073986213&sequence=1
Apparently this is the same for Prefco, Nailer, etc
What have you been specifying?





RE: Dynamic fire damper listing
http://www.ncamfg.com/Catalog-PDFs/FDD-A.pdf
RE: Dynamic fire damper listing
http://database.ul.com/cgi-bin/XYV/template/LISEXT/1FRAME/showpage.html?name=EMME.R10315&ccnshorttitle=Dampers+for+Fire+Barrier+and+Smoke+Applications&objid=1076128023&cfgid=1073741824&version=versionless&parent_id=1073986213&sequence=1
It appears that only the 3V multi-blade dampers are UL listed ...... same as Ruskin
RE: Dynamic fire damper listing
RE: Dynamic fire damper listing
RE: Dynamic fire damper listing
RE: Dynamic fire damper listing
else you have to go to a static rated curtain damper or a fire/smoke damper
one has to look at the free area and static pressure drop due to elbows, etc
i will post again when i get all the info