Parallel Volume Damper Low Leak 3000PLL-44X16 past 12 months 2550 Series Engineering/Performance Data

2550 Series Engineering/Performance Data

904 - Double Deflection Adjustable Aluminum Blade Grille For a 48" x 24" Duct Opening (front blades parallel to shortest dimension)

1550 Series Submittal

* 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 * Solid aluminum rotatable body * Excellent for spot heating and cooling difficult areas * Can move conditioned air from an inaccessible place to the work environment * Precision adjustable aluminum air flow exit plate * Double felt flange body seal to prevent air leakage * Closed cell neoprene felt mounting gasket * Easy adjustment of air flow by turn of a knob * Maximum rotation angle 33 to 42 in all directions * Corrosion resistant anodized finish Options: * 1205 - spot diffuser in panel mount

Parallel Volume Damper Low Leak 3000PLL-44X16 past 12 months 2550 Series Engineering/Performance Datah3. 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