Volume Damper Low-Leak OBD 3000-0BDLL-26X24 past 12 months How To Order Spirals

How To Order Spirals

Standard Features * 3-way diffusion for draft-free heat or air conditioning * For ceiling or sidewall applications * All component parts

Curved saddle with gasket provides airtight fit to spiral pipe

Maximum size 14"x14"

Spiral pipe diameter must be 4” larger than Height of the duct opening

Volume Damper Low-Leak OBD 3000-0BDLL-26X24 past 12 months How To Order Spiralsh3. Standard Features * Opposed blade operation for precise volume control * 16 gauge galvanized channel frame * Blades are vee 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.