6" Long Collar with Metal Damper Tab

Lukjan Round Takeoff – Engineered for Reliable HVAC Airflow

The Lukjan Round Takeoff is a precision-formed component designed for duct transitions in HVAC systems. Constructed from galvanized steel with a G-30 coating, it delivers the strength and corrosion resistance required for both residential and commercial projects.

Its uniform sizing and die-punched design ensure consistent fit and airflow performance, reducing installation time while maintaining long-term reliability in ductwork assemblies.

Contractor Advantages

• Heavy-Duty Galvanized Steel: Manufactured from 30-gauge galvanized steel with G-30 coating for durability and corrosion protection.
• Uniform Dimensions: Machine-produced to maintain consistent sizing across multiple installations.
• Efficient Airflow Design: Optimized to reduce turbulence and improve system balance.
• Simple Integration: Designed to connect securely with standard round duct systems.
• Code Compliant: Meets ASTM-A653 CS Type B standards for HVAC applications.

Technical Specifications

• Diameter: 6 inches
• Length: 5-7/8 inches
• Material: 30-gauge galvanized steel, G-30 coating
• Compliance: ASTM-A653 CS Type B

Installation Notes

For best performance, installation should be performed by an HVAC professional to ensure proper alignment, sealing, and compliance with local codes. Seal joints with approved duct sealant or tape to maintain system efficiency. Although straightforward, precise handling during installation is essential to prevent air leakage and maintain airflow balance.

Professional Use Guidance

For Contractors: The Lukjan Round Takeoff provides a consistent, reliable connection that minimizes field adjustments and supports efficient project timelines.

For Maintenance: Periodic inspection of connections and seals is recommended to sustain system performance and prevent bypass leakage.

Summary

The Lukjan Round Takeoff is a durable, contractor-grade fitting that combines precision manufacturing with proven materials. Its consistent sizing, galvanized steel construction, and airflow-optimized design make it a dependable choice for any professional HVAC installation.