Southwark Metal 70710000 Quadrant Damper 3 Inches

Product Description

The SOUTHWARK METAL 70710000 is a 3-inch quadrant damper designed for use in residential and light commercial HVAC duct systems. A quadrant damper controls airflow within a duct run by rotating a damper blade to restrict or open the passage. It is typically installed inline in round or rectangular branch duct work to balance air distribution across zones or individual supply runs. Licensed HVAC technicians and sheet metal contractors are the primary installers of this component.

This damper is suited for residential forced-air systems and light commercial ducted HVAC applications where manual airflow balancing is required. At 3 inches, it fits standard 3-inch round duct branches commonly found in residential supply or return air distribution networks. Installation occurs during new construction rough-in or retrofit balancing projects.

Key Features

• 3-inch duct size for standard residential branch duct applications
• Quadrant-style blade design allows manual airflow adjustment
• Compatible with round duct systems requiring inline flow control
• Compact form factor suited for tight mechanical spaces

Compatibility

Designed as an OEM-style replacement or new-installation component for 3-inch round duct branch runs in residential and light commercial forced-air HVAC systems.

Installation Notes

Installation should be performed by a licensed HVAC technician or qualified sheet metal contractor. Power down the air handling unit and verify the system is de-energized before beginning duct work. Secure the damper using sheet metal screws and seal connections with UL-listed foil tape or mastic sealant per local mechanical code requirements. Do not install in a location that restricts access to the adjustment quadrant.

Technical Specifications

• Duct Size: 3 inches
• Damper Type: Quadrant

Standard Information

• Brand: SOUTHWARK METAL
• Manufacturer Part Number: 70710000