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The D690 Round Damper is used in conventional air handling systems to control airflow in a round duct. The damper is designed for use with Honeywell ML6161 and ML7161 Direct Coupled Actuators.


  • Neoprene seal for tight closing and low leakage.
  • Oilite bearings for long life.
  • 90 degree damper travel for a variety of applications.

Product Specifications

heating, cooling, ventilating
Temperature Range (F)
32 F to 130 F
Temperature Range (C)
0 C to 54 C
Used With
Honeywell direct coupled actuators up to 44 lb-in.
Item Type
Tradeline Value
Size (in.)
8 in. diameter
Size (mm)
203 mm diameter
Damper Type
Single-blade, round
Maximum Approach Velocity (ft/ min)
2500 ft/min
Input Signal
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