Rectangular Duct Bend

Elbows of rectangular duct, rolled to a radius or in mitered segments: two cheeks, a throat and a heel. Elbow of rectangular duct, with a rolled radius or in mitered segments: two flat cheeks, a throat and a heel, each developed as its own plate.

• Radius bend
• Segmented bend

How the rectangular duct bend is developed, with a worked example · Duct bends