Rectangular Tee with Round Branch

The AD-TPK rectangular duct tee with a circular branch is designed to create a branch connection from a rectangular air duct to a round duct. This fitting allows a direct transition between different cross-sections without additional adapters, maintaining optimal aerodynamic performance of the ventilation system.
The tee features flanged connections on all rectangular ends and is reinforced with transverse corrugation of the steel sheet, providing high structural rigidity and resistance to mechanical loads. The circular branch is manufactured as a standard nipple connection and is positioned symmetrically by default.
Two design options are available: Type 1 — centrally positioned branch; Type 2 — offset branch.
Dimensional limits include: Emin=D/2+50 mm; Lmin=2E; Dmax = B−50 mm; Dmin=100 mm.