Trox multi-leaf volume control dampers have been specifically designed for use in ventilation systems for volume, flow and pressure control. In addition, the type Cs with side and tip seals satisfies the closed blade leakage requirements specified in UL 555S Class II.
Type VCD dampers are available for square, rectangular, circular and flat oval ductin.
The casing is a rigid and robust assembly formed from either channel frame for flanged connection to duct work or top hat section for spigot style connection. The blades are formed single skins with grooved blade tips to provide interlocking closure. Blade action is as standard parallel but can be optionally opposed action. Blade tip seals can be fitted for low leakage applications. The dampers can be fitted with hand locking quadrant or can be operated by electric actuators.
