Volume Damper Low-Leak OBD 3000-0BDLL-38X14 Residential Registers & Grilles PERFORMANCE DATA 845 Series Engineering/Performance

PERFORMANCE DATA 845 Series Engineering/Performance Data

Concealed mounting holes with mounting screws

Extended sleeve (2751)

Retainer cables are provided on sizes 12" and larger to allow the inner cones to hang securely while adjusting the diffuser

Standard Features * Heavy duty honeycomb construction * Blades run parallel to longest dimension given * Gym Grade - includes welded core and extra supports for heavy duty application * Mounting holes for sidewall and ceiling application * Recessed screwdriver operated opposed blade damper to control air volume for positive balance of system * Soft White Options * No mounting holes * Tamper Proof Screws * Standard Color

Volume Damper Low-Leak OBD 3000-0BDLL-38X14 Residential Registers & Grilles PERFORMANCE DATA 845 Series Engineering/Performanceh3. 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.