GAB - VCD Aluminum blade and hand-operated quadrant.
GGB - VCDGalvanized steel blade and hand-operated quadrant.
The Box Type Volume Control Damper has been specially designed for installation in system where medium/low pressure are experienced. These dampers are designed to operate from one control point. The damperâs blade opening is controlled by hand locking quadrant.
Application: Generally used for application in Galvanized ducts and pre-insulated ducts. Sizes are limited to 600mm (width) x 400mm (height) only.