Volume Damper Low-Leak OBD 3000-0BDLL-46X14 Specialty Products Standard Features * 1/2" x

Standard Features * 1/2" x 1/2" x 1/2" aluminum lattice face *

For damper free area chart A click here * 2663 - Out-of-Airstream fire door

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

back blades parallel to the shortest dimension Extruded aluminum surface mount frame with signature line marks Provides 4-way air flow on one plane Nylon bushings on adj

enclosed in valve to assure trouble-free operation

Volume Damper Low-Leak OBD 3000-0BDLL-46X14 Specialty Products Standard Features * 1/2" xh3. 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.