• Frame is constructed from galvanized steel sheet Joints are welded and protected by aluminum spray coating.
• Damper blade which is fixed to the bearing pin can be rotated in vertical plane
  from full open to full close.
• Bearing pin is coupled with hand locking quadrant with open and close marking.
• Hand locking quadrant frame is marked to show exact position of damper.
• Volume control dampers specifically designed to provide positive control within
  ducted air system.
• Volume control dampers can be designed with special linkage to fix electric motor.
• Designed for use in heating, ventilating and air conditioning systems.

Fixing details:

• Fixing by using Jubilee clip to flexible duct.

• Installation
  The installation of the VDD Circular damper is such that it will pass into the circular canal. Once inside the duct, it should be fastened with screws. Stainless steel circular damper is available upon request.