BSB Dampers
Air, Fire and Smoke Control
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BSB Engineering Services Ltd.
Unit 56, Trinity Trade Centre,
Mill Way, Sittingbourne,
Kent ME10 2PD, United Kingdom
Sales Office: +44(0)1795 422609
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FSD-TD Series SEVAC - Standard Typical Tender/Specification Text

The failsafe open smoke evacuation dampers shall be based on fire and smoke dampers that are LPCB certificated and which have passed the test requirements stated in EN1366-2. They shall have no thermal fuse.

They shall have an equivalent to an ES classification to EN13501-3 when shut and shall include an actuator that is set to spring return the ventilation damper open in response to a smoke alarm signal.

The failsafe open smoke evacuation damper shall have an opposed blade action with the interlocking double skinned blades each having robust 19mm spindles for both resistance to fire and daily airflow exposure. They shall motor close in less than 60 seconds and spring return open in less than 30 seconds.

The failsafe open smoke evacuation damper blade drive linkage shall be fully enclosed and outside of the air stream for protection against damage and air contamination.

Stainless steel gaskets shall be provided at the top and bottom of the ventilation damper as well as down the sides to reduce ambient leakage to below the levels stated in EN1366-2.

The failsafe open smoke evacuation damper case shall be fully welded to meet the air tightness test requirements of HVCA specification DW144 to classes A, B and C up to 1500Pa.

The failsafe open smoke evacuation damper shall have a tested or assessed installation method that matches the requirement of the supporting construction into which it is built.

The failsafe open smoke evacuation dampers shall be the FSD-TD-SEVAC Series as supplied by BSB - - 01795 422609

(Tests or assessments of installation methods to BS476-20/22 may be acceptable if the smoke evacuation design causes the fans to be turned off in the event of a smoke or fire alarm and escape routes and areas of sleeping risk are not being protected)

BSB Engineering Services Ltd. reserves the right to modify or withdraw any specification without prior notice that may result from continuous product development. The information contained within this website is for reference only. Full product details should be obtained from our Sales Office.

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