Volume Damper Low-Leak OBD 3000-0BDLL-34X12 Smoke-Fire Damper Square collar designed for 22"

Square collar designed for 22" x 22" duct

PERFORMANCE DATA 907 Series Engineering/Performance Data

Submittal and Performance Data

2750 Install Instructions

055 T6 extruded aluminum surface mount supply diffuser * Four air patterns: CB10 - one way

Volume Damper Low-Leak OBD 3000-0BDLL-34X12 Smoke-Fire Damper Square collar designed for 22"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.