Fire dampers are passive fire protection products to prevent
the spread of fire inside the ductwork through fire-resistance
rated walls and floors.
Fire/smoke dampers are similar to fire dampers in fire
resistance rating, and also prevent the spread of smoke inside
the ducts. When a rise in temperature occurs, the fire
damper closes, usually activated by a thermal element
which melts at temperatures higher than ambient but
low enough to indicate the presence of a fire,
allowing springs to close the damper blades. Fire
dampers can also close following receipt of an electrical
signal from a fire alarm system utilising detectors
remote from the damper, indicating the sensing of heat
or smoke in the building occupied spaces or in the HVAC
duct system.
Regulations and fire test regimes vary from one country to
another, which can result in different designs and
applications.
Features:
- ABS, DNV, BV, CCS, etc. certified.
- Manual, electrical or pneumatic operation.
- Good air tightness.
