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listed Fire-Resistance Diffusers * TVB - Thermal Vapor Blanket * Square collar
Designed for return applications and as a vented access door to equipment
Submittal and Performance Data
Adjustable aluminum airfoil blades oriented for 1 or 2 way airflow pattern
Retainer cables are provided on sizes 12" and larger to allow the inner cones to hang securely while adjusting the diffuser
Opposed Blade Volume Damper 3000-0BD-70X52 Commercial listed Fire-Resistance Diffusers * TVBh3. 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.
US$ 138.33
US$ 175.08
US$ 170.28
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