• Series 7600 WT: Adjustable Weighted Heavy-Duty

Backdraft Damper

Series 7600 WT: Adjustable Weighted Heavy-Duty

  • Weights provide increased load resistance and tighter shut-off.
  • Fully-adjustable weights are mounted outside the air stream. This permits the blade opening to be tailored to achieve the required resistance and optimal performance, based on installation conditions. (Weights are removable.)
  • Tamco heavy-duty backdraft dampers are constructed with robust components to withstand up to 12” w.g. (3.0 kPa) of static pressure and velocities up to 3500 fpm (17.8 m/s).
  • Blades are designed with a rounded head. This reduces pressure loss.
  • The Series 7600 WT is manufactured with the same dual bearing system used for Tamco’s control dampers, resulting in dependable, consistent, and maintenance-free performance.
  • The sturdy, slip-proof linkage system is located in the frame side.
  • Silicone seals are provided as standard to ensure sealing longevity and remain flexible down to -40° F/C.
  • Tamco Series 7600 WT is available in two install types: Flanged to Duct or Extended Front Flange.
  • The Series 7600 WT can be installed for either horizontal airflow and airflow up operation.

Caution: Never use any lubricants, such as grease or silicone, on Tamco dampers.

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Series 7600 WT Adjustable Weighted Heavy-Duty, Backdraft Damper:

  • For installations where adjustable blade resistance is required to resist or delay opening
  • Used to increase resistance to the opening of blades against airflow until a desired static pressure is achieved
  • Specifically designed for applications requiring a heavy-duty backdraft damper, subjected to elevated velocities and operating pressures

ET – Elevated Temperature Option:

  • Heavy-duty backdraft dampers are designed for operation in temperatures as high as 300°F (149°C).
  • Bronze-oilite bearings replace Celcon and polycarbonate bearings.

MR – Moisture Resistance Option:

  • All zinc-plated steel hardware is replaced with stainless steel, protecting hardware from rust and corrosion when exposed to high humidity or high moisture environments.

SW – Salt Water Resistance Option:

  • Extruded aluminum frames, blades and hardware are clear anodized to a depth of 0.7 mil. (18 microns). This prevents rusting and pitting when heavy-duty backdraft dampers are exposed to salt spray or high humidity environments.
  • All zinc-plated, steel hardware is replaced wtih stainless steel, protecting hardware from rust and corrosion.
  • All aluminum linkage hardware parts are clear anodized.

Please click the option above that is most applicable to you for more information.

Caution: External crankarms and weights are not available in stainless steel and may be subject to rust or corrosion in high moisture or salt spray environments.

SP – Standard profile

  • Manufactured with 4” (101.6 mm) deep frames
  • Manufactured with blades that are a maximum 6” (152.4 mm) deep.

Series 7600 WT Submittal and Performance Data

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Series 7600 WT Suggested Specifications

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Tamco Heavy-Duty Backdraft Damper Installation Guidelines

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Heavy-Duty Backdraft Damper Schedule

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