Smoke dampers are passive fire protection products used in air conditioning and ventilation duct work or installed in physical smoke barriers (e.g., walls). This may be done to prevent the spread of smoke from the space of fire origin to other spaces in the same building. Made of Galvanized Iron or Stainless Steel. Available in single blade or multi-blade system, square or round versions. Can be with flanged type or non-flanged type.
Fire Damper are passive fire protection products used in heating, ventilation, and air conditioning (HVAC) ducts to prevent the spread of fire inside the duct work through fire-resistance rated walls and floors. Fire 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. Made of Galvanized Iron or Stainless Steel. Available in single blade or multi-blade system, square or round versions. Can be with flanged type or non-flanged type.
Volume Damper or balancing dampers are control dampers that regulate the flow of air but are not intended to be used in applications as a positive shut-off. These dampers are with manual hand quadrants that can be locked in place (manual volume damper) or with motor actuator (motorized volume damper). Made of Galvanized Iron, Aluminum or Stainless Steel. Available in single blade or multi-blade system, square or round versions. Can be with flanged type or non-flanged type.
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