Product Description
A GI Butterfly Spigot Damper is a compact circular air-volume control device used in HVAC duct systems to regulate, balance, or partially shut off airflow. . It consists of a galvanized steel circular frame with a centrally mounted rotating blade that can be manually or motor operated. Joints are welded and coated with aluminium spray to prevent rusting. Hand locking Quadrant is provided with open / close indication . Foam Gasket is provided on inner frame surface
It is particularly suitable for round ducts, flexible-duct connections, branch take-offs, diffusers, grilles and circular collars. . Butterfly dampers are widely used in supply air, return air, fresh air, and exhaust air applications where simple and reliable airflow control is required.
Construction Details
| Parameter | Specification |
|---|---|
| Material | Galvanized Iron (GI) Sheet |
| Frame Material | GI Sheet, 0.8 mm thick |
| Blade Material | GI Sheet, 1 mm thick |
| Type | With / Without Flange |
| Diameter (Dia) | 100, 150, 200, 250, 300, 400 mm as standard |
| Custom Sizes | Other sizes (dia) as optional |
| Operation | Manual / Motorized |
| Handle | Galvanized Steel with Locking Quadrant |
| Shaft Material | MS Rod |
| Bushes | Brass Bush |
| Fasteners | Zinc Plated Steel |
| Seal | Optional EPDM Rubber / Foam Gasket |
| Finish | Pre-Galvanized Finish |
| Shape | Circular |
