Parallel Volume Damper Low Leak 3000PLL-28X10 Specialty Products 375 Series Engineering/Performance Data

375 Series Engineering/Performance Data

Adjustable aluminum airfoil blades oriented for 1 or 2 way airflow pattern

T-Bar Modular Core Diffuser with Round Collar 18-20

Performance Data - No Damper

Access door with 1-3/8" deep steel roll formed frame

Parallel Volume Damper Low Leak 3000PLL-28X10 Specialty Products 375 Series Engineering/Performance Datah3. 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