Model FLD-S-A is a multi-blade fire damper with 3V style blades, designed to close the HVAC duct opening in emergency fire situations.
It is certified to withstand fire conditions for 2 hours as well as 4 hours, as per UL555 testing standards, tested by CBRI Roorkee. FLD-S-A can be installed vertically, with blades running horizontally and airflow in either direction, and suits velocities up to 2000 fpm.
Model FLD-A is a multi-blade fire damper with 3V style blades, designed to close the HVAC duct opening in emergency fire situations.
Model FLD-S-UD is a UL 555 classified fusible link multi-blade fire damper with 3V style blades, designed to close the HVAC duct opening in fire situations.
Model SD-A-U is a UL555S classified multi-blade smoke damper with 3V style blades, designed to close the HVAC duct opening in smoke situations.
Model SD-B-U is a UL555S classified multi-blade smoke damper with 3V style blades, designed to close the HVAC duct opening in smoke situations.
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