A fire damper is a device installed in ducts and air transfer opening of a smoke control or air distribution system which is designed to automatically close when it detects heat. It also helps resist the passing of flames, interrupts migratory airflow and maintains the integrity of fire-rated separation. Fire dampers are essential in institutional and commercial facilities and ensuring that they can perform effectively is essential. Compliance guidelines require annual fire damper testing to be carried out. A fire damper test comprises of two parts: visual inspection of the fire damper, and a drop test of the fire damper.
A fire damper works when the heat from the fire causes the typical temperature of a room to rise to about 165°F. The fusible link attached to the damper then melts, causing the damper’s door to close. In rooms where the normal temperature of the room is consistently higher, a higher degree fusible link would be attached to the damper. These fusible links will melt at a temperature about 212°F. There are three types of fire damper designs used to help prevent irreparable damage caused by a fire. A dynamic fire damper, a static fire damper and a fire/smoke damper.
BS 9999:2017 states: ‘… all fire dampers to be tested by a competent person on completion of the installation and at annual intervals. Spring-operated fire dampers should be tested annually, and fire dampers situated in dust-laden and similar atmospheres should be tested much more frequently, at periods suited to the degree of pollution’. Dampers in hospitals or high-risk environments will require more frequent testing.
BDL provide peace of mind with our thorough and vital fire damper testing and maintenance service. Our qualified, skilled, and professional team can ensure that you are 100% compliant and in accordance with essential regulations ensuring the safety of your building and service users. Call us today for a quotation.
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