Top quality
Galvanized steel: Most popular, has good durability and rust resistance.
Stainless steel (201, 304, 316): Used for special environments requiring high corrosion resistance and strict hygiene (food, pharmaceutical, medical factories).
Round duct offset: This is the main use. When the air duct needs to pass through obstacles such as beams, crossbeams, electrical systems, water systems, or other structures on the ceiling/wall, the eccentric angle helps the air duct move up or down to pass them neatly without having to cut or demolish the structure.
Adjusting installation elevation: During construction, sometimes it is necessary to adjust the elevation of the pipeline to match drawings or other items. Off-center is the ideal solution.
Optimize space: Helps make effective use of space on false ceilings or in areas with many technical items, ensuring aesthetics and safety.
Maintain a stable air flow: Thanks to the smooth transition design, the eccentric angle helps minimize the turbulence of the air flow, thereby reducing pressure loss and limiting noise generation compared to using multiple 90-degree elbows in series.
Diameter (D): Depends on the diameter of the air duct it connects to.
Offset (Offset - L): Is the pitch (or horizontal) displacement distance between the two center axes of the tube. This is the most important parameter of the eccentricity, calculated based on the actual requirements of the project.
Overall Length: The length of the accessory, depending on the deflection and tilt angle.
Tilt angle: Usually designed with small tilt angles (eg 15 degrees, 30 degrees) to ensure smooth airflow. The smaller the angle, the larger the deviation, the longer the length of the angle.
Material thickness: From 0.5mm to 1.2mm or more, depending on pipe diameter and pressure in the system.
Connection: The ends of the circular eccentric are often crimped to fit the air duct or use flange connections/flange clamps.
Air circulation efficiency: Minimizes pressure loss and noise compared to using accessories with harsh turning angles.
High flexibility: Optimal solution for adjusting pipe height or position in tight spaces with many obstacles.
Save space: Allows pipes to hug structures without causing major obstructions.
Aesthetics: When installed outdoors, the smooth curves of the rounded eccentric create a modern, industrial look.
Good tightness: When machined correctly and installed correctly.
