Volume Damper Low-Leak OBD 3000-0BDLL-44X12 T-Bar 850 Series Submittal

850 Series Submittal

Standard Features * Fixed airfoil blades parallel to 1st dimension given *

450 Series Engineering/Performance Data

SD52 - Transition Box Spiral Pipe Grille (Single Deflection)

57% free area * 1307: 13/16" lattice opening

Volume Damper Low-Leak OBD 3000-0BDLL-44X12 T-Bar 850 Series Submittalh3. 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.