Fire Damper 1
Fire Damper 1 : (Build) A Device That Automatically Seals Off Air Flow Through Part of An Air-Handling System In Order To Restrict or Block The Passage of Heat and Combustion Products. See: Smoke Damper. Note: The Device usually Consists of A Flap or Shutter Controlled By A Fusible Link, Though Recently A Honeycomb Partition Coated With Intumescent Paint Has Been Developed