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Smoke Dampers

Smoke Dampers are designed to resist the passage of air and smoke in HVAC systems, which shut down in the event of a fire. They also control the movement of smoke through the building. These motor-operated  smoke dampers are available in 3 classes: ultra-low leakage (class 1), low leakage (class 2), and leakage (class 3). Voltage of electric motors offered in 24 volt, 120 volt and 220 volt, with or without an end switch in Belimo and Siemens brands. Pneumatic motors that operate by a combination of force created by air and spring force are also an option. We offer a transition option for oval, square and rectangular assemblies. Dampers can be manufactured with externally mounted motors or internally mounted motors. http://firedamper.com/wp-content/uploads/2014/09/SmokeDampers.pdf