Backdraft Vertical Mount 3550-32X12 T-Bar 450 Series Submittal

450 Series Submittal

Standard Features * 2601 - Square or rectangular for vertical mount only

Round ceiling radiation butterfly damper

Options * Sleeve variations * Mounting flange * Adjustable counter balance to adjust various opening pressures

Note: Sizes listed are the duct or opening size the grille will fit into

Backdraft Vertical Mount 3550-32X12 T-Bar 450 Series Submittalh3. Standard Features * 3550 Vertical mount * 3560 Horizontal mount air up * 3570 Horizontal mount air down * 3580 Round sizes available 5" to 24" * All non motorized backdraft dampers * Dampers are opened by air pressure differential and closed by gravity * 16 gauge channel frame with 26 gauge galvanized blades * Out of airstream linkage * Blades are vee stiffened 26 gauge for strength and stability * Square steel pivot pins * Nylon bushings * Single