Combination Fire/Smoke Dampers
Combination Fire/Smoke dampers are low leak damper and actuator assemblies that have passed the UL555 and UL555S test requirements.
United Enertech designs and manufactures high-performance combination fire smoke dampers engineered to protect lives and property while maintaining efficient airflow in commercial and industrial HVAC systems. Our fire and smoke dampers are UL-listed and tested to provide critical protection in fire-rated barriers, stopping both flame and smoke from spreading through ductwork and air openings.
Whether your project requires a smoke fire damper for vertical walls, or Horizontal in masonry floors, or a motorized fire and smoke damper for dynamic HVAC applications, United Enertech has a reliable solution to meet your code requirements.
What Is a Combination Fire Smoke Damper?
A combination fire smoke damper—also called a fire/smoke damper—is a UL-listed device installed in HVAC ductwork that penetrates rated walls, floors, or partitions. Its purpose is to automatically close during a fire event, stopping the spread of both flames and smoke.
While a fire damper is designed to close when a heat-sensitive fusible link melts, a smoke damper typically responds to smoke detectors or building control signals. Combination fire smoke dampers integrate both functions, offering a complete safety solution in one assembly.
Fire/Smoke Damper Features and Benefits
United Enertech’s combination fire/smoke dampers are packed with features that enhance life safety, energy efficiency, and integration with building systems. Below are some of the key benefits that set our products apart:
- UL Listed to UL 555 and UL 555S
- Designed for static and dynamic HVAC systems
- Available in horizontal and vertical configurations
- Low-leakage blade and seal designs
- Electric or pneumatic actuator options for control integration
- Optional factory-installed smoke detectors for simplified wiring
Our fire smoke dampers are tested for air leakage, operational reliability, and structural performance under fire conditions. We offer multiple damper types to accommodate airflow requirements, space constraints, and system control needs.
Combination Fire Smoke Damper Styles
We offer a wide variety of smoke and fire dampers to meet different applications and installation types:
Multi-Blade Fire Smoke Dampers
Our multi-blade models provide low pressure drop during normal operation while sealing tightly when activated. Great for systems that remain operational during a fire.
Combination Damper with Actuator
These fire smoke dampers feature motorized operation for precise control and seamless integration into Building Automation Systems (BAS). Available with modulating or two-position control options.
Fire/Smoke Dampers for Return, Supply, and Exhaust Ducts
We manufacture smoke fire dampers suitable for all duct locations—whether supply, return, or exhaust—and offer frame and blade styles to match your system’s layout and performance specs.
Applications for Fire and Smoke Dampers
United Enertech fire and smoke damper solutions are trusted in:
- Commercial and high-rise buildings
- Hospitals and healthcare facilities
- Educational institutions
- Hospitality and multifamily developments
- Government and transportation facilities
- Industrial spaces with critical life safety zones
Installed at penetrations of fire-rated barriers, our fire/smoke dampers ensure building code compliance while providing the first line of defense against smoke migration and flame spread.
Why Choose United Enertech?
- Tested to perform in real-world fire and smoke scenarios, our dampers undergo rigorous UL testing to ensure they activate reliably during emergencies and seal off duct openings effectively.
- Made in the USA using high-quality materials including galvanized steel and extruded aluminum, ensuring long-term durability and resistance to heat and corrosion.
- Available in a wide range of sizes and blade configurations, including curtain and multi-blade designs to suit various airflow, static pressure, and spatial requirements.
- Expert support for selecting the right damper per code and system requirements—our team assists with code interpretation, sizing, and product selection to simplify the specification process.
- 5-year warranty included on all combination fire smoke dampers, offering long-term confidence and durability.
Protect Your Building with United Enertech Fire/Smoke Dampers
From basic wall installations to complex ducted systems, United Enertech’s smoke dampers and combination fire smoke dampers provide life safety without compromising airflow or design flexibility.
Contact us today to learn more, request specifications, or find the right fire and smoke damper for your next project.