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2500 - Fire Smoke Damper

The model 2550 is designed to prevent the spread of fire and smoke through ventilation ductwork in walls and floors. From receiving an alarm the power to the damper actuator is removed releasing the actuator spring to release closing the damper. The dampers also include an electrical thermal sensor and a secondary mechanical fusible link that prevent the damper from opening if the temperature has reached 720 C.

With the introduction of Construction Product Regulation on the 1st July 2013, all fire dampers are required to meet the product standard BS EN 15650. To achieve this standard the damper has to be tested to BS EN 1366-2 dynamic fire test. The dampers are then classified to BS EN 13501-3 that clearly states the integrity of the damper also in the way that damper was installed in the furnace. The standard also now included testing of fusible link to ISO 10294-4 that comprises of a dynamic release and holding tests.

The maximum single section unit tested was 1000mm x 1000mm for both the HEVAC and AFS frame. The damper has been tested both ways round in both wall and floor installation's so there is no issue in coordination caused by working out which side the fire will be on. The damper is supplied complete with actuator pre-wired into a junction box complete with test button reducing time and work on site. The dampers can be supplied with long spigots for installing access doors (optional) or short to reduce on space. 


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