Spiral Duct of Ventilation Fitting 304SS

It can be also distinguished according to the material from which it’s made, e.g. rigid spiral pipe is usually made of galvanized steel sheet; flexible ducts often made of aluminium, polyester foil, etc. By far the most popular ductwork types used for both residential and industrial ventilation systems are rigid spiral ducting and rectangular ducting. A ventilation spiral duct is the basic element of the ventilation system. Ventilation ducts are passages used to transport air – supply fresh outside air and remove stale indoor air. Ventilation ductwork can be divided according to its shape, namely, circular, rectangular and oval (a compromise between rectangular and round ventilation ducts). 1, Galvanized spiral air duct does not need maintenance after completion of installation, reducing maintenance costs. 2, the use of raw materials are produced by the steel galvanized steel plate; 3, the inner and outer walls are smooth, the air duct resistance is small, the air supply a…

Access Doors Ventilation Duct Dampers Pressed T-Pieces Pressed Female Reducers Segmented Bends