Why this ducting earns its place
In extraction systems that combine multiple hoods or branches into a central riser, airflow often needs to compress back down to a smaller outlet or ductwork. A large 450 mm riser might step down to a 200 mm branch, or compress for a final outlet: that's where a 450–200 mm converter bridges the gap. This converter lets air transition smoothly from larger to smaller diameter without violent turbulence or pressure surge.
Weighing 3 kg, it's substantial yet straightforward to install. The converter's profile steps the diameter down in one smooth transition, keeping airflow balanced. Install it where your larger extraction stack needs to connect to smaller branch ducting, or where a big riser tapers down before exiting the building. The 450 mm end takes the high-volume incoming air, and the 200 mm end delivers it to the smaller downstream ducting.
A well-sized converter is essential in extraction work. Rather than forcing mismatched ducts together or accepting air leakage at a poor joint, a stepped converter does the job right. Clamp both ends securely and your extraction system moves air cleanly and quietly.
