A duct penetrates a rated partition wall scheduled on the drawings, maintaining a maximum one-half inch clearance. A fire damper sleeve passes through the opening, secured with one and one-half inch by one and one-half inch sixteen gauge galvanized angles on both sides of the wall.
FIRE DAMPER SLEEVE PARTITION AS SCHEDULED 1 1/2" X 1 1/2" 16 GAUGE GALVANIZED ANGLE 1/2" MAX. 1/2" MAX. DUCT SCALE: 1 1/2" = 1'-0" 11 TYP. MULTI. PIPE PEN. @ RATED WALL
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