Parallel Volume Damper Low Leak 3000PLL-56X50 Smoke-Fire Damper Standard Features 1” rim size

Standard Features 1” rim size (2” larger than nominal duct size / order size) 14 gauge steel construction Countersunk mounting holes for a flush appearance 1-27/32” Wide x 11/32” High slots on staggered centers

Square or rectangular ceiling radiation butterfly damper

Spiral Diffuser Radius Flush Mount Diffuser Single Deflection with Damper

Maximum dimension 41w

Parallel Volume Damper Low Leak 3000PLL-56X50 Smoke-Fire Damper Standard Features 1” rim sizeh3. Standard Features * 16 gauge galvanized channel frame * Parallel blades are cee 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. Options * 3000 PLL Low Leak Air Control