CHARACTERISTICS: Volume control dampers 200 mm pitch. ARTICLE DESCRIPTION: SRC200-P: opposed blade damper with pin for servo-motor (standard). SRC200-C: opposed blade damper with manual control. SRC200-PP: parallel blade damper with pin for servomotor. SRC200-PPC:parallel blade damper with manual control. T10: veneered blades. (price increase +30%) CONSTRUCTION: Galvanized steel frame. Galvanized steel blades. Nylon spindles (on request steel spindles for high temperatures) FIXING: By bolts on flanges corners. DETAILS: Drive: Counter rotating or parallel movement driven by manual control or servomotor.