What type of duct is typically used for corner transitions?

The correct choice of angle ducts is crucial for corner transitions in ductwork systems. Angle ducts, also known as elbow or bend ducts, are specifically designed to change the direction of airflow at corners or turns in a ventilation system. This design allows for a smoother transition, which helps to minimize turbulence and resistance in airflow.

Using angle ducts ensures that air can flow efficiently around corners without creating excessive strain on the system or causing noise from turbulent airflow. They are suited for applications where changes in direction are necessary, such as in tight spaces or in duct systems that require precise routing.

Other types of ducts can be utilized in various scenarios, but they might not provide the same level of efficiency or effectiveness in transitioning around corners. For instance, while flexible ducts can bend and are versatile for many applications, they are not specifically tailored for corner transitions like angle ducts are. Spiral ducts, although strong and efficient for straight runs, lack the directional change capabilities that angle ducts offer. Round ducts can sometimes navigate corners but may require additional fittings or elbows, complicating the installation and airflow.

In summary, angle ducts are the optimal choice for corner transitions due to their design that offers a direct solution for directing airflow efficiently around bends.