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1900 Insulated Extruded Aluminum Backdraft Damper (Formerly BDD-I)

The Ventex 1900 (In-Duct Frame)/1905 (Flange Frame)/1907 (Front Flange Frame) is a superior concept in insulated backdraft dampers. This unique all-aluminium product eliminates the shortcomings of previous designs on the market. Pivot pins that quickly wear out or rust out, or rivets that shake loose and pull through the blade are no longer a problem. The extruded blades are engineered to combine strength and durability with smooth operation by virtue of their aerodynamic design. Insulated blades and frame reduce thermal conductivity. Available with factory installed actuator for motorized operation.

MATERIAL: EXTRUDED ALUMINUM - 6063-T5 ALLOY 

FRAME STYLE:  1900 IN-DUCT MOUNT, 1905 FLANGE FRAME, 1907 FRONT FLANGE FRAME

DEPTH (BLADES CLOSED): 2.75" (70 mm) 

DEPTH (BLADES OPEN): 5.625” (143 mm)

FRAME THICKNESS: 0.062" (1.57 mm)

BLADE THICKNESS: 0.062" (1.57 mm))

BLADE CENTRES: 3.75" (95 mm)

SEALS: VINYL BLADE SEAL

INSULATION: 1/4" STYROFOAM (R-1.25) MECHANICALLY FASTENED TO BLADES (OPTIONAL ON FRAME)

OPERATION METHOD: GRAVITY

FINISH: MILL FINISH  

 

MATERIAL: EXTRUDED ALUMINUM - 6063-T5 ALLOY MINIMUM MAXIMUM

FRAME STYLE: SPECIFY DM FOR DUCT MOUNT FRAME WIDTH 8" (203 mm) 60" (1524 mm)

SPECIFY FM FOR FLANGE FRAME (1 ½” FLANGE) HEIGHT 8" (203 mm) 60" (1524 mm)

SPECIFY FFM FOR FRONT FLANGE FRAME (1 ½” FLANGE) AREA 0.44 ft2 (0.04 m2) 25 ft2 (2.32 m2)

DEPTH (BLADES CLOSED): 2.75" (70 mm) *DM AND FFM DAMPERS WILL BE MANUFACTURED 1/4" (6.4 mm) SMALLER THAN GIVEN

OPENING DIMENSIONS UNLESS OTHERWISE SPECIFIED

*FM DAMPERS WILL BE MANUFACTURED TO THE EXACT SIZE OF GIVEN OPENING

DIMENSIONS UNLESS OTHERWISE SPECIFIED

DEPTH (BLADES OPEN): 5.625” (143 mm)

FRAME THICKNESS: 0.062" (1.57 mm)

BLADE THICKNESS: 0.062" (1.57 mm))

BLADE CENTRES: 3.75" (95 mm)

SEALS: VINYL BLADE SEAL

OPERATION METHOD: GRAVITY

FINISH: MILL FINISH (ONLY)

 

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• Counter balancing without springs
• Conduit hole
• Galvanized bird screen
• Aluminum bird screen
• Insect Screen

• Factory installed actuator for motorized operation
• Manual locking device to keep blades open
• Manual operation complete with 6 ft. of chain
 • Factory installed actuator for motorized operation
• Manual locking device to keep blades open
• Manual operation complete with 6 ft. of chain
  • Factory installed actuator for motorized operation
• Manual locking device to keep blades open
• Manual operation complete with 6 ft. of chain
 

• Styrofoam insulation on frame

Ventex