Fire compartmentation
Dampers block the flow through the ductwork at strategic points, helping to maintain separation between different sections of the building.
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Fire Protection
Fire dampers
Solutions for compartmentalizing ventilation and air conditioning systems, designed to limit the spread of fire and smoke through the ductwork network.
Applications
Integrated protection for the ventilation system
In the event of a fire, the ductwork system can create a passageway between areas of the building. Fire dampers are used to seal these openings and support the compartmentalization specified in the design.
Automatic closure
The shut-off can be controlled by a fuse or by various actuating devices, depending on the configuration specified for the project.
Integration with HVAC systems
Configurations are available for rectangular and circular ducts, allowing for use in ventilation and air conditioning systems with different protection requirements.
Product Portfolio
Some models and configurations
RETEC offers a variety of fire-rated damper series to meet requirements for design, installation, and fire resistance. The items listed below are configuration examples and must be confirmed on a project-by-project basis.
Rectangular · 60 minutes
TROX FKA-TI-BR-60
Fire damper for the automatic closure of fire protection zones in ventilation and air conditioning systems.
Recommended for: HVAC systems that pass through walls or floor slabs and require a 60-minute fire resistance rating.
Technical Specifications
FormatSquare or rectangular
Fire resistance60 minutes
Reference DimensionsWidth from 200 to 1500 mm and height from 200 to 800 mm
HousingGalvanized steel sheet in accordance with NBR 7008 ZC, coating B
AletaCalcium silicate, a thermal insulation material free of asbestos fibers
InstallationWalls or slabs, depending on requirements and installation guidelines
Round · 60 minutes
TROX FKR-D-BR-60
Round fire damper from the FKR-D-BR line, designed to prevent the spread of fire through the ventilation system.
Recommended for: Circular ducts in HVAC systems with a 60-minute fire resistance rating.
Technical Specifications
FormatRound
Fire resistance60 minutes
Specified nominal rangeDiameters from 355 to 630 mm
AletaCalcium silicate-based refractory material, free of asbestos fibers
Thermal driveFuse element that trips at approximately 72 °C
TestLine tested in accordance with ABNT NBR 6479/1992
Rectangular · 90 minutes
TROX FKA-TA-BR-90
Square or rectangular fire dampers designed for the automatic shutdown of HVAC systems in fire-compartmented areas.
Recommended for: Ventilation and air conditioning systems that require 90 minutes of fire resistance.
Technical Specifications
FormatSquare or rectangular
Fire resistance90 minutes
ApplicationAutomatic Shutdown in Fire Protection Zones in HVAC Systems
HousingGalvanized steel sheet
AletaSpecial thermal insulation material
InstallationSuitable for installation on walls and slabs
Round · 90 minutes
TROX TNR-F-BR-90
Round fire damper for isolating sections of the ventilation system, with a fire resistance rating of 90 minutes.
Recommended for: Circular ducts and fire protection sections in ventilation and air conditioning systems.
Technical Specifications
FormatRound
Fire resistance90 minutes
Reference pressure1500 Pa as per the series catalog
HousingGalvanized steel sheet in accordance with NBR 7008 ZC, Class B
AletaCalcium silicate-based thermal insulation material
Thermal driveFuse element that trips at approximately 72 °C
Rectangular · 120 minutes
TROX FKA-TI-BR-120
Version of the FKA line recommended for projects that require longer fire resistance and automatic shutdown of the ventilation system.
Recommended for: HVAC projects with more demanding compartmentalization requirements and 120-minute fire resistance.
Technical Specifications
FormatSquare or rectangular
Fire resistance120 minutes
Reference DimensionsWidth from 200 to 1500 mm and height from 200 to 800 mm
HousingGalvanized steel sheet in accordance with NBR 7008 ZC, coating B
AletaCalcium silicate, 60 mm thick, in the configuration specified in the catalog
InstallationWalls or slabs, depending on requirements and installation guidelines
Round · 120 minutes
TROX TNR-F-BR-120
Version of the TNR-F-BR series designed for installations requiring fire resistance of up to 120 minutes.
Recommended for: Circular networks in compartmentalized areas and HVAC systems with higher fire protection requirements.
Technical Specifications
FormatRound
Fire resistance120 minutes
Reference pressure1500 Pa as per the series catalog
HousingGalvanized steel sheet in accordance with NBR 7008 ZC, Class B
AletaCalcium silicate-based thermal insulation material
Thermal driveFuse element that trips at approximately 72 °C
Specifications
The correct selection depends on the project
The selection of a damper should take into account the shape and dimensions of the ductwork, fire resistance rating, installation location, actuation system, and requirements specified in the safety and HVAC design.
The RETEC team can assist in identifying the appropriate configuration and supplying components compatible with the intended application.
Technical Support
Do you need dampers for your project?
Submit your bill of materials, specifications, or project information to check availability, models, and configurations suitable for your application.