Parallel Volume Damper Low Leak 3000PLL-66X40 Residential Registers & Grilles 375 Series Submittal

375 Series Submittal

Adjustable directional dampers with shut-off

* 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

950 Series Engineering/Performance Data

Standard Features * 4000 - door core grille with single frame * 4100 - door core grille with additional loose frame *

Parallel Volume Damper Low Leak 3000PLL-66X40 Residential Registers & Grilles 375 Series Submittalh3. 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