CHARACTERISTICS: Shut-off volume control dampers 100 mm pitch leakage. CERTIFIED CLASS 2 ACCORDING TO EN 1751. DESCRIPTION: SRC-AG-C: opposed blade damper with manual control. SRC-AG-P: opposed blade damper with pin for servo-motor (standard). CONSTRUCTION: Extruded aluminium frame. Extruded aluminium blades with gasket. Nylon spindles. FIXING: By bolts on flanges corners. DETAILS: Drive: Counter rotating movement driven by manual control or servomotor.