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* 2634 - Square or rectangular Spring actuated (6) out-of-airstream fire damper for horizontal or vertical mount
Standard collar diameter is the same as the diffuser size
PERFORMANCE DATA
Extended sleeve ( See Model 2702)
For evaporative cooling or high-velocity exhaust applications
Pressure Relief HD 3530-12X12 Smoke-Fire Damper * 2634 - Square orh3. 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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