DIV 23 · HVACDAMPERSCUT SHEET INDEXED

Greenheckfsd-311 combination fire smoke damperfsd-311

Greenheck Combination Fire Smoke Damper (Fire and Smoke Dampers). Model FSD-311. Class I leakage rating; 1.5-hour fire resistance rating; Opposed airfoil blade action

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Greenheck fsd-311 cut sheet — first page
Official manufacturer data sheetOpen PDF ↗
Manufacturer
Greenheck
Catalog no.
fsd-311
Product type
Dampers
MasterFormat
23
Cut sheet
PDF · manufacturer current

Product details

Catalog numberfsd-311
DescriptionGreenheck Combination Fire Smoke Damper (Fire and Smoke Dampers). Model FSD-311. Class I leakage rating; 1.5-hour fire resistance rating; Opposed airfoil blade action
Closure temperatures165°F, 212°F, 250°F, 286°F, 350°F. material: Galvanized steel frame (16 ga), Galvanized steel airfoil blades (14 ga)
Connection sizeMin 6x6 in, Max Single 32x50 in, Max Multi 144x96 in (H) / 128x100 in (V)
Pressure RatingUp to 8 in. wg (2 kPa)
Flow RateUp to 4000 fpm (20.3 m/s)
FinishGalvanized
MountingVertical or Horizontal.
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