Butterfly dampers consist of a round blade, seals, packing, a bearing, an actuator, and a shaft. The shaft plays a large part in a Butterfly damper's operation, as it intersects the linkage, bearing, packing, and blade.
Material
Construction: Galvanized steel
Blades: Aluminum or stainless steel
Size:
Specify dimensions based on duct size and airflow
requirements
Design:
Butterfly Damper Type: Single blade or double
blade
Blade Thickness: [Specify]
Shaft: Stainless steel, with bushings for smooth
operation
Specifications:
Actuation::
Manual: Hand-operated lever or handwheel for
blade adjustment
Electric: Optional motorized actuator for remote
control
Sealing:
Blade Sealing: Neoprene or silicone gaskets for
airtight closure
Frame Sealing: Foam or rubber gaskets to prevent
air leakage
Accessories
Access Panels: Provided for inspection and
maintenance
Finish:
Galvanized finish for corrosion resistance
Optional powder coat finish available
Quality Assurance:
Fabrication: By certified manufacturers
Compliance: Meets industry standards and
specifications
Installation
By qualified technicians following
manufacturer's instructions