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.

Specifikation

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.

Teknisk specifikation

Unik ref.Backdraft-Damper-Adjustable-Counterbalanced-Triple-V-Blade-BD-84
ProduktfamilieHVAC
ProduktgruppeBackdraft Dampers
TypeObjekt (enkelt objekt)
Udgivelsesdato2024-07-16
Udgavenummer1

Links

Produkt-URLhttps://www.pottorff.com/product/details/53

Klassifikation

BIMobject-kategoriHVAC - Rørarbejde
Uniclass 2015-kodePr_65_65_24
Uniclass 2015-beskrivelseDuct dampers
CSI MasterFormat 2014-kode23 33 13.23
CSI MasterFormat 2014-titelBackdraft Dampers
OmniClass-nummer23-33 29 13
OmniClass-betegnelseBackdraft Dampers

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