Round Duct Fire Damper

Fire dampers are ul555 tested and labeled devices installed in ducts and air transfer openings or air distribution systems designed to close upon the detection of heat.

Round duct fire damper.

The 75c round fire damper is approved for use in walls floors and partitions with fire resistance ratings less than 1 1 2 hours. Has provided underwriters laboratory approved fire dampers as well as other essential products for the h v a c. Lloyd industries has been an active manufacturer of access doors fire and smoke dampers and h v a c. They can accommodate airflow in either direction.

Ruskin fdr25 is a true round fire damper designed for use in fire rated walls and floors and is the perfect choice when using round duct. They have a fusible link that melts at 165 f releasing a spring and causing the blades to close. Dampers meet ul 555 fire safety standards to help prevent the spread of fire for 1 hours. The 75cr round fire damper the 75c fire damper is a lloyd industries fire damper with blades and frames out of air stream.

For technical drawings and 3 d models click on a part number. A complete line of damper products for fire and smoke control in life safety systems and for airflow control in commercial hvac and industrial systems. The integral frame and unique cinch plate design provides a low cost high performing damper. The fdr25 is rated for maximum velocity of 2 000 fpm 10 2 m s and 4 w g.

Look through this selection for a round rectangular or square damper in the size that fits your ductwork retaining angle frames and fusible links. They are also recommended for use in duct systems or penetrations of fire rated barriers designed to have pressurized airflow when dampers cycle closed during a fire. Is a leading manufacturer of dynamic fire dampers. Get the right fire and smoke dampers from grainger today.

Help protect your buildings and the people in them from the dangerous spread of fire and smoke in an emergency situation. Products for over 35 years. This model carries a 1 1 2 hour ul fire damper label. These fire smoke dampers are designed for use in hvac systems requiring emergency fire smoke control.

They are undersized to fit inside duct. Draft blocker backdraft damper duct draft stopper backflow preventer inline fan vent vent deflector 6 inch 4 4 out of 5 stars 120 17 95 17.