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htaikaung		 what is fire damper? View All
How many kinds of fire damper?details fire damper of air-ducting system
15 years ago - 4 months left to answer. - 2 responses - Report Abuse
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rahul gopinath
 File damper is a device designed to impede the spread of fire through walls, floors and partitions. Its construction includes a galvanized steel frame and a fusible link, a heat sensitive device (usually set at 165° F). When the fusible link opens it releases the damper components to close. When the damper components close the damper will restrict the migration of fire. Fire damper products are listed with hourly ratings, see “Fire Rating” below. They are also listed as standard (static) dampers or dynamic dampers.

Type-A Fire Damper: Used when the airflow interruption from the stack of blades in the fire damper frame is not a prime concern or consideration. Type-A dampers are the easiest and fastest type to install and are mostly used in low-pressure part of duct systems (up to 2” w.c.).

Type-B Fire Damper: Used when airflow or velocity in the duct is a concern. The stack of blades in the fire damper frame is kept out of the air stream. Compared to an Type-A damper, the total sq

15 years ago

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Bos
 I wonder if you mean FIREDAMP, which is an old miner's term for any of a number of inflammable / explosive gases, chiefly Methane

15 years ago

Source: Any dictionary, Wikipedia


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