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  VD - Butterfly Type Volume Control Damper  
       
 
Application
  • An economical, effective means to control the air quantity feeding round neck diffusers.
Product Features
  • Coated steel construction
  • The smooth “butterfly” action of two pivoting blades provides continuous adjustment.
  • The blades are conveniently adjusted from the room side of the diffuser, and are designed to hold their position indefinitely.
  • The VD damper can be added to any Anemostat round neck diffuser or SRA square to round adapter.
  • Flex duct bends may interfere with operation of damper and is not recommended.
  • 5/32" hex key required.
  • Field installed accessory
Options
  • Available in aluminum or 304/316 stainless steel
    (operator parts are galvanized steel).
 
   

 

Submittals
Model Description
VD Butterfly Type Volume Control Damper
VD-C Butterfly Type Volume Control Damper with 24" Cable