DIV 23 · HVACDAMPERSCUT SHEET INDEXED

Greenheckwd-300 series backdraft damperwd-300

Greenheck Backdraft Damper (WD-300 Series). Model WD-300. Prevents reverse airflow in horizontal exhaust applications; Pressure sensitive blade design opens under low velocity conditions; Blade seals are vinyl with synthetic axle bearings; Optional MP-310 motor pack converts to motorized operation with spring return. material: Galvanized steel frame, roll formed aluminum blade

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Greenheck wd-300 cut sheet — first page
Official manufacturer data sheetOpen PDF ↗
Manufacturer
Greenheck
Catalog no.
wd-300
Product type
Dampers
MasterFormat
23
Cut sheet
PDF · manufacturer current

Product details

Catalog numberwd-300
DescriptionGreenheck Backdraft Damper (WD-300 Series). Model WD-300. Prevents reverse airflow in horizontal exhaust applications; Pressure sensitive blade design opens under low velocity conditions; Blade seals are vinyl with synthetic axle bearings; Optional MP-310 motor pack converts to motorized operation with spring return. material: Galvanized steel frame, roll formed aluminum blade
Connection sizeMin 6x6 in (152x152 mm), Max 148x148 in (3759x3759 mm)
End connectionFlange on intake (WD-300), Flange on discharge (WD-320), No flange (WD-330)
Pressure Rating2.0 in. wg (0.5 kPa) differential; flow
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