Reducers are produced in diameters range 80 to 1600 mm of galvanized, aluminium and acid-resistant steel. They are used to ventilation systems.
They are recommended in the version with EPDM seals to ensure achieving "D" class leakage (airtightness) according to EN 12237 (SITAC certificate). In both versions there are several types of reducers:
Optionally segmented reducers can be produced with various untypical diameters and thickness of sheet.