Backdraft Damper Horizontal Down 3570-64X8

Backdraft Damper Horizontal Down 3570-64X8h3. Standard Features * 3550 Vertical mount * 3560 Horizontal mount air up * 3570 Horizontal mount air down * 3580 Round sizes available 5" to 24" * All non motorized backdraft dampers * Dampers are opened by air pressure differential and closed by gravity * 16 gauge channel frame with 26 gauge galvanized blades * Out of airstream linkage * Blades are vee stiffened 26 gauge for strength and stability * Square steel pivot pins * Nylon bushings * Single

Stamped steel face with roll formed frame

450 Series Engineering/Performance Data

Five air patterns available

Product sizes available to fit spiral pipe diameter 8” – 48

and handle

904 - Double Deflection Adjustable Aluminum Blade Grille For a 18" x 14" Duct Opening (front blades parallel to shortest dimension)

Adjustable single deflection grille

915 Series Submittal

3 cone steel diffuser with hinged core for easy duct access

Smoke Test and More Information on MA Series Diffusers

055 T6) surface mount diffuser * Nylon bushings for easy adjustment and quiet setting of airfoil blades * Countersunk mounting holes for flush appearance with color matching Phillips posi-drive screws * Single deflection diffuser with adjustable airfoil blades * Airfoil blades are parallel to longest dimension * Allows 2-way air deflection on one plane * Soft White Options * 901 O - with recessed screwdriver operated opposed blade damper * 1331 and 1332 Series - stainless steel single deflection * Fractional

Negator stainless steel closure springs mounted on spring pin brackets