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Ships within 48 hours · Estimated delivery Sep 14 - Sep 19
Adjustable aluminum curved blades
Extruded aluminum frame with steel roll formed blades and steel multi-shutter damper
For damper free area chart B click here * 2665 - Round fire door for vertical mount only
SD34 Series Performance Data
Allows for 2-way airflow
Opposed Blade Volume Damper 3000-0BD-64X30 Smoke-Fire Damper Adjustable aluminum curved bladesh3. 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.
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