Opposed Blade Volume Damper 3000-0BD-40X10 past 12 months Standard Features * Airflow can

Standard Features * Airflow can be adjusted to 1

Flush core and frame provides smooth surface

Type 316 stainless steel

* 3 hour rated * UL and California State Fire Marshall approved * 4-1/4" standard frame style * Interlocking steel roll-formed blade (3) with roll-formed frames (1) * Blade lock (5) * Damper manufactured from corrosion tested galvanized mild steel (G-90) * Self locking corner (4) * 165° replaceable fusible link (2) h3

For evaporative coolers or central blower systems

Opposed Blade Volume Damper 3000-0BD-40X10 past 12 months Standard Features * Airflow canh3. 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.