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listed Fire-Resistance Diffuser * TVB - Thermal Vapor Blanket * Square collar Additional Drawings * 825 MA
1/2" spacing dual angular louvers for strength and maximum free area
916 Series Submittal
Standard Features * 2633 - Square or rectangular out-of-airstream fire damper for vertical mount only
Divided 2-way multi-louver and combination shut-off
Pressure Relief HD 3530-12X16 Smoke-Fire Damper listed Fire-Resistance Diffuser * TVBh3. Standard Features * 3510 Vertical mount * 3520 Horizontal mount air up * 3530 Horizontal mount air down * Designed to open with negative or positive pressures for intake or exhaust air * Felt edge blades to hold noise to a minimum * Aluminum construction * Blade to blade linkage * 1 4" pivot pins in nylon busings * Maximum size 24 x 24 * Mill finish h3. Options * Sleeve variations * Mounting flange * Adjustable counter balance to adjust various
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