Volume Damper Low-Leak OBD 3000-0BDLL-66X28 Smoke-Fire Damper Options * Sleeve variations h3

Options * Sleeve variations h3

REVIT FILES Spiral Diffuser Radius Flush Mount Diffuser Single Deflection

Rust-resistant pre-coat with durable powder finish

Square Collar

Volume Damper Low-Leak OBD 3000-0BDLL-66X28 Smoke-Fire Damper Options * Sleeve variations h3h3. Standard Features * Opposed blade operation for precise volume control * 16 gauge galvanized channel frame * Blades are vee stiffened 16 gauge galvanized for strength and stability * Blades pivot on non metallic celcon bushings * 1 2" square zinc plated steel pivot pins * 1 2" square zinc plated steel adjustable operating shaft extending up to 4" beyond the air control frame * Single blades on dampers with a height of 12" or less * Mill finish h3.