Volume Damper Low-Leak OBD 3000-0BDLL-32X22 Accessories Square or rectangular ceiling radiation

Square or rectangular ceiling radiation butterfly damper

Standard Features * 1/2" x 1/2" x 1/2" aluminum lattice return air grille * Surface mount grille with

Fixed bars with 0° deflection

53% free area * 1306: 3/4" lattice opening

Note: Listed Size Is Nominal Duct Opening / Nominal Filter Size

Volume Damper Low-Leak OBD 3000-0BDLL-32X22 Accessories Square or rectangular ceiling radiationh3. 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.