ASLI Multi-Blade Volume Control Dampers are designed for manual balancing (HD-T, HDR-T) and motorized control (AD-T) in ventilation systems for volume flow and pressure. HD-T HD-T is primary designed for manual balancing application in ventilation systems for volume flow and pressure control. The galvanized steel locking quadrant arm (HD-T) or the OM arm linkage (HD-T OM) is mounted on the shaft for manual operation. AD-T AD-T is primary designed for motorized control in ventilation systems for volume flow and pressure control. AD-T-1T: Actuator mounted exposed at the side of the volume control damper. AD-T-2T: Actuator mounted in a compartment at the corner of the volume control damper. AD-T-3T: Actuator mounted in a compartment at the side of the volume control damper. AD-T-4T: Actuator mounted in an extrusion fitting.
Frame: Galvanized steel, 1.2mm thickness.
Blade: Galvanized steel, 1.0mm thickness.
Blade Dimension Limits
Maximum blade length = 1200mm
Maximum blade width = 160mm
Axles
Hexagonal bar mild steel.
Bearing
Plastic sleeve as standard. Bronze bush is optional.
Blade Action
Opposed blade.
Connection Type
Slip joint (S) or flange joint for TDC (T).
Temperature
-40°C to 116°C
Mill galvanized.
(Standard Sizes unit:mm)
200 × 200 / 300 × 300 / 400 × 400 / 500 × 500 / 600 × 600 / 750 × 750 / 900 × 900 / 1000 × 1000
Custom sizes available upon request.
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