Fire Damper
Fire Damper – Series 1924
Passive Fire Protection Device for HVAC Systems
The Fire Damper – Series 1924 from SUDE Engineering Private Limited is a critical safety device designed to prevent the spread of fire and smoke through HVAC ductwork during a fire event. Installed within air ducts, the damper automatically closes when exposed to elevated temperatures, typically triggered by a fusible link or thermal sensor, thereby maintaining the integrity of fire-rated walls, floors, and partitions.
Engineered for reliability and durability, the damper ensures compartmental safety while minimizing fire and smoke propagation, protecting both personnel and property. Its precision-engineered blades and robust housing are designed for long-term operation in air handling systems, withstanding standard airflow conditions without compromising performance.
The fire damper supports integration with manual, electric, or pneumatic monitoring systems, allowing seamless inclusion in automated building safety and fire protection controls. It is suitable for commercial, industrial, and process plant HVAC systems, where compliance with fire codes and safety regulations is mandatory.
Widely applied in power plants, commercial buildings, chemical processing facilities, and industrial HVAC networks, this fire damper reflects SUDE Engineering Private Limited’s commitment to safety, engineering excellence, and reliable, high-performance industrial solutions.
Technical Specifications
Parameter
Shapes Available
Rectangular or circular duct mounting
Size Range
100 mm to 1500 mm or customized as per design
Flow Media
Air and ventilation gases in HVAC systems
Blade Type
Curtain-type (multi-blade) or single-blade guillotine style
Sealing Efficiency
Airtight shut-off during fire event
Sealing Type
Gravity or spring-loaded sealing with fire-rated blades
Temperature Range
Fusible link rating typically 68°C / 72°C / 100°C
Material of Construction
Galvanized steel, stainless steel, or aluminium
Pressure Rating
Suitable for HVAC system pressure (low to medium duty)
Drive Operations
Fusible link (standard) / Motorized with thermal sensor (optional)
Testing Standards
UL 555 / BS 476 / EN 1366-2 / NFPA 90A
Design Standards
Complies with international fire safety and HVAC codes
Working Principle:
Normal Operation
Blades remain open, allowing normal HVAC airflow; fusible link or thermal sensor maintains open position.
Fire Condition
When temperature exceeds rated value, fusible link melts or sensor triggers closure.
Closure Mechanism
Blades drop under gravity or spring tension to seal the duct, preventing passage of smoke, heat, and flames between fire zones.
Resetting
After activation, replace fusible link or reset motor actuator post-inspection to resume normal operation.
Key Features & Advantages
- Engineered to provide certified fire containment up to 4 hours
- Automatic operation without external power dependency
- UL/EN/NFPA compliant designs for assured performance and safety
- Available in both fusible link and motorized configurations
- Compact and maintenance-friendly design suitable for retrofit installations
Why Choose Fire Damper – Series 1924?
- Proven reliability across critical infrastructure and HVAC systems
- Designed and tested for compliance with global fire safety standards
- Manufactured with precision to ensure durability and consistent operation
- Supported by Sude Engineering’s technical expertise and after-sales service
SUDE Fire Damper Advantage:
It is engineered to deliver certified fire containment for up to 4 hours, with automatic operation that does not rely on external power for enhanced safety.
Designed in compliance with UL, EN, and NFPA standards, it is available in both fusible link and motorized configurations, featuring a compact, maintenance-friendly design ideal for retrofit installations.
Applications
HVAC duct systems in buildings and industrial facilities
Fire-rated wall and floor penetrations
Hospitals, hotels, airports, data centres, and shopping complexes
Power plants, substations, and control rooms
Any compartmentalized duct system requiring fire protection
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