Air Flow Products MTD106 Conical Spin-in Takeoff Damper

Product Description

The AIR FLOW PRODUCTS MTD106 is a metal duct conical spin-in takeoff fitting with an integrated damper, sized at 10 x 6 inches. It connects a round main trunk duct to a 6-inch branch run, allowing airflow to be directed and controlled at the tap point. The conical spin-in design seats into a pre-punched or field-cut hole in the trunk duct, creating a secure, low-leak connection. The built-in damper gives the installer direct airflow control at the branch without requiring a separate balancing component. Licensed HVAC technicians and sheet metal mechanics are the primary installers of this fitting.

This takeoff is used in residential and light commercial forced-air duct systems where a main trunk must feed a branch run to a supply register or diffuser. The 10 x 6 inch sizing indicates a 10-inch trunk opening with a 6-inch collar outlet, a common configuration in single-family and multi-family HVAC installations. It is appropriate for new construction duct fabrication as well as retrofit and replacement work on existing sheet metal duct systems.

Key Features

• Conical spin-in design seats securely into trunk duct for a low-leak tap connection
• Integrated damper enables airflow balancing directly at the branch takeoff point
• 10-inch trunk by 6-inch collar sizing covers a widely used branch configuration
• Metal construction provides durability for long-term duct system service
• Eliminates the need for a separate balancing damper on the branch run

Compatibility

Designed as an OEM-style replacement or new-installation fitting for sheet metal forced-air duct systems using standard conical spin-in takeoff configurations.

Installation Notes

Installation is performed by licensed HVAC technicians or qualified sheet metal mechanics. Power down the air handler and lock out the system before cutting into or modifying any duct section. The spin-in collar should be seated fully into the trunk duct opening and secured according to local mechanical code requirements, referencing SMACNA duct construction standards where applicable. Seal all joints with listed duct sealant or approved foil tape to maintain system efficiency.

Technical Specifications

• Trunk Opening Size: 10 inches
• Collar Outlet Size: 6 inches
• Damper: Integrated
• Construction: Metal
• Fitting Style: Conical Spin-In Takeoff

Standard Information

• Brand: AIR FLOW PRODUCTS
• Manufacturer Part Number: MTD106