Series 7000 WT
Weighted Back Draft Damper
Series 7000 WT Specification Page (347 KB)
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Series 7000 WT Suggested Specification (35 KB)
Installations where adjustable blade load opening is required.
Air leakage through a 24" x 24" (610mm x 610mm) back draft damper does not exceed 4.32 cfm/ft² (21.95 l/s/m²) against 1" (0.25 kPa) w.g. differential static pressure at standard air.
Each blade is manufactured with a mounting hole to receive a front-mounted mechanical weight.
Weights are supplied, so that the required resistance to the opening of the blade against air flow can be achieved.
Series 7000 WT Weighted Back Draft Dampers allow mounting for horizontal air flow and air flow up operation.
TAMCO's aluminum construction provides a long, rust-free operational life.
Adjustable weights mounted on the exterior face of each blade, permit the blade opening to be tailored to achieve optimal performance based on installation conditions.
(Weights are removable.)
Weights provide increased load resistance and tighter shut-off.
Aluminum pivot points are over-sized for additional strength and durability.
Self-lubricating Celcon bearings ensure a maintenance-free and extended cycle life.
Silicone seals are provided as standard to ensure sealing longevity. The seals remain flexible down to -40° F/C.
TAMCO's weighted back draft damper blades are securely linked via a large diameter aluminum linkage rod.
TAMCO’s linkage and bearing systems combine to provide durable,
TAMCO's weighted back draft dampers are available in Front Flange, In Duct, or Rear Flange mount types.
© 2012 T. A. Morrison & Co. Inc. All rights reserved.