7″ Long Metal Tab Collar

Lukjan Series T27 Round Takeoff – Built for Reliable HVAC Duct Transitions

The Lukjan Series T27 Round Takeoff provides a secure and efficient solution for branch connections in duct systems. Manufactured from galvanized steel with a G-30 coating, this takeoff is designed to deliver consistent performance in both residential and commercial HVAC applications. Precision fabrication ensures uniform sizing, reducing installation issues and improving overall system reliability.

Key Features

• Galvanized Steel Construction: Made from 28–30 ga steel with a G-30 coating for corrosion resistance and long service life.
• Accurate Sizing: Machine-formed, die-punched parts provide uniformity and dependable fit on every installation.
• Airflow Optimization: Engineered to promote smooth airflow from trunk to branch duct, minimizing turbulence and loss.
• Wide Range of Sizes: Available in diameters from 4″ to 12″, covering common residential and light commercial applications.
• Industry Compliance: Meets ASTM-A653 CS Type B standards for material performance.

Technical Specifications

• Series: T27
• Diameter Range: 4″ – 12″
• Material: Galvanized steel, G-30 coating
• Length: Approx. 5-7/8 inches (varies by size)
• Standards: ASTM-A653 CS Type B

Installation Considerations

The T27 Round Takeoff is designed for straightforward installation into trunk ductwork. Proper sealing with UL-rated mastic or tape is recommended to prevent leakage and ensure maximum efficiency. Contractors should confirm diameter selection based on load calculations to maintain balanced airflow throughout the system.

For Contractors

This component is engineered for professional-grade reliability. Its consistent sizing and rugged construction reduce rework and deliver predictable results across projects. Whether for new construction or retrofit, the Lukjan T27 Takeoff provides a dependable solution for high-performance duct connections.

Summary

The Lukjan Round Takeoff, Series T27 combines strength, precision, and compliance with industry standards, making it a trusted choice for HVAC professionals who demand durability and consistent airflow performance.