DD Air Control Duct Dampers

The DD Series Duct Balancing Damper was designed for duct installations to balance/regulate airflows.

All spindles revolve in low maintenance nylon bushes which are fitted within pressed inserts. Precise blade positioning is achieved via a robust dual-purpose quadrant and spindle assembly, operating the linkage mechanism which is located outside of the airstream.

The quadrant assembly is designed to facilitate simple conversion to motorisation without the need for additional components.

Features and Benefits

  • Standard case construction is galvanised mild steel
  • Two airfoil blade designs
  • Four casing options
  • Out of airflow linkage
  • Easy conversion from manual to motorised or vice versa
  • Infinite sizing capability from 100mm to 1000mm and from 100mm diameter to 800mm diameter
  • Variable flange dimensions
  • Comprehensive control options
  • Can be supplied with blades and case in Grades and 430 stainless steel
  • Stainless steel side seals to order

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