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.
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Materials
| 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. |
Surface Finish
| Mill galvanized. |
Blade Action
| Opposed blade. |
Connection Type
| Slip joint (S) or flange joint for TDC (T). |
Temperature
| -40°C to 116°C |
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