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951 Series Engineering/Performance Data
" Spiral pipe diameter must be 4” larger than width of grille
CB30 - three way
Designed to minimize vision into the air duct
904 - Double Deflection Adjustable Aluminum Blade Grille For a 36" x 30" Duct Opening (front blades parallel to shortest dimension)
Opposed Blade Volume Damper 3000-0BD-66X44 Smoke-Fire Damper 951 Series Engineering/Performance Datah3. 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.
US$ 12.49
US$ 22.72
US$ 22.00
