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Smoke Test and More Information on MA Series Diffusers
SUBMITTALS 907 Series Submittal
One-piece removable slide damper for off-season closure
Options * 3000 OBDLL - Low Leak Air Control Damper
Standard Features * Cones are one-piece stamped construction providing a clean
Opposed Blade Volume Damper 3000-0BD-68X28 Specialty Products Smoke Test and More Informationh3. 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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