Volume Damper Low-Leak OBD 3000-0BDLL-60X12

Volume Damper Low-Leak OBD 3000-0BDLL-60X12h3. Standard Features * Opposed blade operation for precise volume control * 16 gauge galvanized channel frame * Blades are vee 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.

Delivers supply air in a 360°air pattern

904 - Double Deflection Adjustable Aluminum Blade Grille For a 30" x 14" Duct Opening(front blades parallel to shortest dimension)

904 - Double Deflection Adjustable Aluminum Blade Grille For a 22" x 18" Duct Opening (front blades parallel to shortest dimension)

with 54% free area

* 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

Ceiling opening must be 4” larger in length and width than the nominal duct size

All Aluminum Construction

Face set in an outer T-Bar filter grille frame

MRI Compatible

904 - Double Deflection Adjustable Aluminum Blade Grille For a 36" x 24" Duct Opening (front blades parallel to shortest dimension)

listed Fire-Resistance Diffusers * TVB - Thermal Vapor Blanket * Square collar

904 - Double Deflection Adjustable Aluminum Blade Grille For a 30" x 16" Duct Opening (front blades parallel to shortest dimension)