Hart Cooley 050293 T-bar Diffuser Butterfly Damper 9 in

Product Description

The HART COOLEY 050293 is a round butterfly damper designed for use with T-bar ceiling diffusers in ducted air distribution systems. Constructed with a steel blade, this damper provides durable, repeatable airflow control at the diffuser neck. The 9-inch round configuration fits standard 9-inch diameter duct connections. It includes a removable adjustable handle, allowing technicians to set the blade position during balancing and remove the handle for a clean finished appearance. HVAC technicians and sheet metal installers use this type of damper during system commissioning to manually balance airflow across zones.

This damper is suited for residential and light commercial HVAC installations where T-bar lay-in diffusers are used in suspended ceiling grids. It is installed at the neck of the diffuser to restrict or open airflow to individual supply outlets. The round butterfly style is commonly used in systems where round flex duct or round rigid duct connects directly to the diffuser boot. The removable handle makes it practical for installations where a finished ceiling appearance is required after balancing.

Key Features

• 9-inch round configuration fits 9-inch diameter duct necks
• Steel blade construction for durability in supply air applications
• Butterfly-style damper provides simple, effective airflow restriction
• Removable adjustable handle allows balancing and clean post-install appearance
• Designed for use with T-bar ceiling diffusers in suspended grid ceilings

Compatibility

Designed as an OEM-style replacement or new-installation butterfly damper for 9-inch round T-bar ceiling diffusers in residential and light commercial ducted HVAC systems.

Installation Notes

Installation is typically performed by a licensed HVAC technician or sheet metal installer. The system fan should be off and the circuit de-energized before accessing the diffuser assembly. The damper is set to the desired position during air balancing, after which the handle may be removed. Follow local mechanical codes and SMACNA guidelines for diffuser and balancing damper installation.

Technical Specifications

• Duct Size: 9 inches diameter
• Blade Material: Steel
• Damper Type: Butterfly, Round
• Inclusions: Removable adjustable handle

Standard Information

• Brand: HART COOLEY
• Manufacturer Part Number: 050293