51AVS-SS / 51AHS-SS Stainless Steel Type A Static Fire Damper
The Alumavent 51AVS-SS/51AHS-SS is a 1-1/2 hour label static fire damper constructed in Type 304 stainless steel, UL/ULC approved for use in HVAC systems where fans automatically shut down in the event of a fire alarm. The stainless steel construction provides excellent corrosion resistance for high humidity and corrosive atmosphere applications. The Type A blade configuration locates the blades directly in the ductwork airflow, and the interlocking curtain type blade design is suitable for use in fire separations with a fire resistance rating of 2 hours or less.
Standard Construction
Custom configurations available
This product can be manufactured in alternative materials, sizes, and mounting options to meet your project requirements. Contact us to discuss specifications.
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Additional Notes
The 51AVS-SS/51AHS-SS is UL/ULC certified for use as a 1-1/2 hour static fire damper in HVAC systems.
The 51AVS-SS/51AHS-SS is the stainless steel variant of the Type A static fire damper, designed for installation in fire-rated assemblies where corrosion resistance is required, such as commercial kitchens, laboratories, coastal facilities, and other high humidity or chemically aggressive environments. The Type A configuration positions the blades directly in the ductwork airflow path. The interlocking curtain blade closes under spring tension when the fusible link releases, providing a reliable passive fire barrier at duct penetrations.
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