Technical data: Spiral ductwork is manufactured from hot dipped galvanised steel sheet: DX 51 D, with a material thickness from 0.5 mm – 1.2 mm. Surface treatment class is Z 275 – i.e. zinc coating is minimum 275 g/m² double sided
Elbows up to and including 200Ø are pressed. 250Ø and above are fabricated
If you require FULL or LONG radius elbows please contact: sales@ductfix.co.uk for prices
