Concentric Rectangular Reducer

A rectangular duct reducer on one centreline, with a straight length at each end: each side one plate, folded where the taper begins and ends. A rectangular duct reducer on one centreline, with a straight length at each end: each side is one plate, folded where the taper begins and ends.

• Tapered on four sides
• Tapered on two sides

How the concentric rectangular reducer is developed, with a worked example · Reducers