Parallel Volume Damper Low Leak 3000PLL-42X30 Smoke-Fire Damper Provides 4-way air flow on

Provides 4-way air flow on one plane

Standard Features * Full size fixed bar blade T-Bar lay-in return air grille *

2550 Series Engineering/Performance Data

Louvers designed with rolled rib for maximum strength and rigidity

Standard Features * Gang-operated opposed blade radial volume control damper for use with RD Series Round Diffusers * Available in 2" increments from 6"-24"

Parallel Volume Damper Low Leak 3000PLL-42X30 Smoke-Fire Damper Provides 4-way air flow onh3. 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