Volume Damper Low-Leak OBD 3000-0BDLL-64X40 Smoke-Fire Damper Minimum size 4"x4"

Minimum size 4"x4"

2" ADC compliant round collar with bead for ease of installation

HVL Series Submittal

Blade lock to secure blades once the product is activated

52h * Interlocking steel roll-formed blade (3) with roll-formed frames (1) * Blade lock (5) * Damper manufactured from corrosion tested galvanized mild steel (G-90) * Self locking corner (4) * 165° replaceable fusible link (2) h3

Volume Damper Low-Leak OBD 3000-0BDLL-64X40 Smoke-Fire Damper Minimum size 4"x4"h3. 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.