Backdraft Damper - Adjustable Counterbalanced - Triple-V Blade - BD-84

Adjustable Counterbalanced Backdraft Damper
Triple-V Blade

The BD-84 backdraft damper employs counterbalanced gravity operated triple-V style blades and a rugged channel frame to restrict reverse airflow and to permit the forward flow of air in the intended direction. Adjustable counterbalances attached to the blades axles permit field adjustment to regulate start-to-open and full blade operation. The BD-84 damper is intended to be mounted vertically in either exhaust or intake installations for medium to high velocity and pressure applications.

Специфікація

Standard Construction
Frame: 8" x 2" X 14 ga. (203 x 51 x 2.0) galvanized steel channel.
Blades: 6" x 16 ga. (152 x 1.5) galvanized steel - triple-V
Axles: 1/2" (13) diameter plated steel.
Linkage: Concealed in frame.
Bearings: Steel ball bearing, press fit into frame.
Counterbalances: On-blade axle, crankarm and weights - adjustable.
Minimum Size: 6" x 6" (152 x 152)
Maximum Size: 48" x 96" (1219 x 2438)

Ratings
Leakage:
70 cfm/ft² @ 4 in. wg. (0.36 m³/s/m² @ 1.00 kPa) with no seals.
40 cfm/ft² @ 1 in. wg. (0.21 m³/s/m² @ 0.25 kPa) with no seals.
Temperature:
-25^oF to 250^oF (-32^oC to 121^oC) with no seals.
-10^oF to 150^oF (-23^oC to 66^oC) with seals.

Технічна специфікація

Унікальний номерBackdraft-Damper-Adjustable-Counterbalanced-Triple-V-Blade-BD-84
Сімейство продуктівHVAC
Група продуктівBackdraft Dampers
ТипObject (single object)
Дата публікації2024-07-16
Номер видання1

Посилання

Url-адреса продуктуhttps://www.pottorff.com/product/details/53

Класифікація

Категорія BIMobjectHVAC - Ductwork
Код Uniclass 2015Pr_65_65_24
Опис Uniclass 2015Duct dampers
Код CSI MasterFormat 201423 33 13.23
Заголовок CSI MasterFormat 2014Backdraft Dampers
Номер OmniClass23-33 29 13
Заголовок OmniClassBackdraft Dampers

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