Volume Damper Low-Leak OBD 3000-0BDLL-72X46 Commercial SD52 - Transition Box Spiral

SD52 - Transition Box Spiral Pipe Grille (Single Deflection)

Allows for 4-way airflow adjustment

Stainless steel

Standard Features * Use in applications for installing round without damper * Steel galvaneal construction

RS34 Series Engineering/Performance Data

Volume Damper Low-Leak OBD 3000-0BDLL-72X46 Commercial SD52 - Transition Box Spiralh3. 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.