Volume Controls Damper

Construction

Egg Crate Grills
  • Frame: 1.2 mm thick galvanized steel sheet.
  • Frame size: 125 mm depth and standard flange height of 25 mm.
  • Blades: Double skinned high quality extruded aluminium aerofoil profiles.
  • Bearing pins: Electro plated square steel rod of size 12.7 mm x 12.7 mm.
  • Bushings: Self oiling nylon bushings of internal square size.
  • Bearing pin connecting quadrant: Electro plated square steel rod of size 12.7 x 12.7 mm.
  • Blade linkage: Steel / aluminium linkage.
  • Blade stopper: 20 mm x 20 mm aluminium angle.

Description

  • Frame is constructed from galvanized steel sheet. Joints are welded and protected by aluminium spray coating.
  • Blades are coupled by external concealed linkage, which can provide either parallel or opposed blade operation.
  • Linkage rods are coupled with hand locking quadrant with open and close marking. Hand locking quadrant frame is marked to show exact position of damper.
  • Structure is available with flanged edges and are supplied un drilled as standard.
  • Dampers without flanges available as option for duct insertion purpose. Flanged edges with drilled holes are also available.
  • Available in square and rectangular sizes.
  • Designed for use in heating, ventilating and air conditioning systems.

Accessories

  • Motorized dampers: Volume control dampers will be supplied with actuators of client's choice. The dampers can be provided with an extended linkage to fix motor at the site.

Standard Sizes

  • Available in square and rectangular sizes.
  • Sizes available from 100 x 100 mm with an increment of 25 mm.
  • Non standard sizes available as option.
Fixing Details

How to Order

Ordering Example:

Model Size Quantity Finish
AVCD Specify duct width x height in mm x mm Specify in numbers A = Fixing by bolts
B = Slip and clip joint

To select volume control damper for a duct size of 900 x 600, quantity 75 nos. bolt fixing.

Order as: AVCD - 900 x 600 - 75 - A.