Volume Damper Low-Leak OBD 3000-0BDLL-48X14 Smoke-Fire Damper Standard Features Double deflection surface

Standard Features Double deflection surface mount grille with adjustable airfoil blades Front blades parallel to longest dimension

Maximum dimension 41w

Blades parallel to shortest dimension

904 Series Submittal

Type 316 stainless steel

Volume Damper Low-Leak OBD 3000-0BDLL-48X14 Smoke-Fire Damper Standard Features Double deflection surfaceh3. 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.