Pressure Relief Vertical Mount 3510-20X20 past 12 months 855 Series Submittal

855 Series Submittal

Soft white

Tool Operated Opposed Blade Damper

212° Fusible Link

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

Pressure Relief Vertical Mount 3510-20X20 past 12 months 855 Series Submittalh3. Standard Features * 3510 Vertical mount * 3520 Horizontal mount air up * 3530 Horizontal mount air down * Designed to open with negative or positive pressures for intake or exhaust air * Felt edge blades to hold noise to a minimum * Aluminum construction * Blade to blade linkage * 1 4" pivot pins in nylon busings * Maximum size 24 x 24 * Mill finish h3. Options * Sleeve variations * Mounting flange * Adjustable counter balance to adjust various