Hvac Duct Fire Dampers

Fire smoke dampers are similar to fire dampers in fire resistance rating and also prevent the spread of smoke inside the ducts.

Hvac duct fire dampers.

Installed inside hvac ductwork the damper blades automatically close when a rise in temperature occurs or a smoke alarm goes off. Fusible link melts releasing the fire damper curtain. Black stove pipe cast iron damper model bacid6 9 26 9 26. Metal fab s dynamically rated fire dampers are tested and approved for use up to 4 w c.

Designed to limit the spread of fire and smoke. Free delivery with 45 order. Static fire dampers can be used in both vertical and horizontal positions. Static duct fire dampers static fire dampers are used in applications where the fans shut down during fire and smoke control.

1000 pa at the rated airflow. Damper products serve a valuable role in air movement. Motorized adjustable damper closed model zc212 76 99 76 99. Fire dampers are passive fire protection products used in heating ventilation and air conditioning hvac ducts to prevent the spread of fire inside the ductwork through fire resistance rated walls and floors.

Use of fire suppression systems sprinklers the use of smoke management and control systems and the construction of walls floors partitions ceiling assemblies etc. Products cover a wide variety of applications ranging from life safety to maintaining the control of outside air. Fire and smoke dampers 63 products use fire and smoke dampers from grainger in office buildings healthcare facilities and other buildings to prevent the spread of fire and smoke if that emergency should occur. Master flow 6 in.

As of april 1 1992 all fire dampers used in hvac systems that might not cycle the blower off during a building fire must be listed and labeled for dynamic closure by underwriter laboratories. 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.