The square ductwork serves as round ducts for air transport. The advantage of the square pipes is that better conforms to the dimensions of the construction and easier to produce shaped pieces. Rectangular duct made of sheet and rolled galvanized steel sheet DX51D MAC with a zinc coating of 275 g / m2 with suppressed flower.
Luxuriously square pipes are made of stainless steel sheet metal, black metal, copper, aluminum or aluzinc. Rectangular duct is fitted as standard with PZ strip flanges with corners cemented with acrylic sealant.
Luxuriously can be equipped with piping strip flanges according to customer requirements outside the dimensional table or use a steel profile flange primed. To increase corrosion resistance ductwork can protect the paint or komaxit. At the customer we can supply pipes insulated or thermal insulation, including fire covered with iron (insulation to metal).