Volume Control Dampers are specially designed for high / medium / low pressure systems. They are designed to operate from one control point. The damper blade opening is controlled by a hand locking quadrant. An option with electric motor is also available for the Flange type (GAM) and the Pre-Insulated type (PAM) VCDs.
Depending on the application, casings are made from 14 gauge to 23 gauge Galvanized sheets. Tor Pre-Insulated type, casings are made from Pre-Insulated Sandwich Paned of 20mm or 30mm thickness. Similarly depending on the application, blades are made from 1.1mm thick extruded aluminum {airfoil shaped) or 16 gauge to 23 gauge Galvanized sheet. Standard length is 170m except. Standard length is 170mm except for the Round type where the length depends on the diameter.