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* 3100 Series - Face and By-Pass dampers * Sleeve variations * 12 gauge galvaneal construction * Flat head and sill frame construction * Extended square operating shaft (extending 7-1/2" beyond the air control frame) * Round operating shaft (1/2" diameter) * Oil impregnated bronze bushings * Spring closed or spring open dampers * Outside mounting flange * Direct mount damper motors * Fractional and odd sizes available
Standard Features * Radius flush style spiral mount diffuser * Single piece formed frame * Curved frame fits flush to spiral pipe * Single deflection * Nylon bushings for easy adjustment * Adjustable blades are parallel to shortest dimension * Available in 8" thru 36" spiral diameters (Note: spiral diameter must be 4" larger than register width) * Soft White Options * RS52-GALV - Single piece galvanized steel with formed frame * RS52-SC - Screwdriver operated air scoop * RS52 O - with recessed screwdriver operated opposed blade damper * Standard Color or Designer Color Finish available on this product
Rust-resistant pre-coat with durable powder finish
Standard Features * Individually adjustable curved blade T-Bar diffuser * Core is constructed of
Parallel Volume Damper Low Leak 3000PLL-72X60 Commercial * 3100 Series - Faceh3. Standard Features * 16 gauge galvanized channel frame * Parallel blades are cee 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. Options * 3000 PLL Low Leak Air Control
