Material: Constructed From Fire-Resistant Materials, Such As Galvanized Steel Or Stainless Steel, To Withstand High Temperatures And Resist Corrosion.
Design: Typically Rectangular Or Square, Designed To Fit Within The Ductwork And Close Automatically In Response To High Temperatures.
Sizes: Available In Various Sizes To Match Different Duct Dimensions And Airflow Requirements.
Fusible Link: Equipped With A Fusible Link Mechanism That Melts At A Specific Temperature (Often Around 165°F Or 74°C), Causing The Damper To Close And Block The Airflow.
Sealing: Effective Sealing Mechanisms, Such As Intumescent Gaskets, To Minimize Air Leakage When The Damper Is Closed.
Closure Time: Manufacturers Might Provide Information About The Time It Takes For The Damper To Close After The Fusible Link Is Activated.
Certifications: Fire Dampers Should Meet Relevant Industry Standards And Certifications For Fire Resistance, Such As UL 555 And UL 555S.
Operation: Typically Operates Passively And Automatically In Response To Temperature Rise, But May Also Include Manual Reset Options For Testing And Maintenance.
Orientation: Can Be Installed Horizontally Or Vertically Within The Ductwork, Depending On The Application And Airflow Direction.
Accessories: Some Fire Dampers May Come With Accessories Like Position Indicators, Actuators, Or Remote Control Options For Monitoring And Operation.
Pressure Drop: Manufacturers Might Provide Information About The Pressure Drop Caused By The Damper In Both Open And Closed Positions.
Installation: Designed For Proper Installation Within Ducts Using Standard Connections And Installation Methods.
Temperature Resistance: Fire Dampers Are Specifically Designed To Withstand High Temperatures For A Defined Period To Prevent The Spread Of Fire.
Maintenance And Testing: Fusible Link Fire Dampers Should Be Periodically Tested And Maintained According To Manufacturer Recommendations And Industry Standards.
Application: Essential For Fire And Smoke Containment In HVAC Systems, Especially In Commercial And Industrial Buildings.
