Circular super-flexible duct

Made of aluminium and polyester. Applications: Intended for ventilation, heating and air-conditioning installations in offices, commercial premises, large retail areas, etc. It is especially suitable for connections from main ducts to diffusers. It can be used in both supply and return installations, being ideally suited to the latter. In case of high temperatures, it does not give off smoke or toxic gases. Technical data: Available diameters: 80 to 630 mm; Maximum tested pressures: +3.100 Pa / -1.400 Pa; Airtightness class C; Bending radius R= 0,7 x Ø ext.; Temperature range: -20ºC to 120ºC; Maximum air velocity: 20-30 m/s; Complies with standard UNE-EN 13180:2003; Reaction to fire: BS1,d0. Made of aluminium and polyester with a glass-fibre central layer. Applications: Intended for heating and air-conditioning installations in homes, offices, commercial premises and large retail areas, etc. It is especially suitable when insulation is required to prevent condensation. It can be used in both supply and return installations. Technical data: Available diameters: 80 to 508 mm; Maximum tested pressures: +3.100 Pa / -1.400 Pa; Airtightness class C; Bending radius R= 0,7 x Ø ext.; Temperature range: -20ºC to 120ºC; Maximum air velocity: 20-30 m/s; Complies with standard UNE-EN 13180:2003; Reaction to fire: BS1,d0. Supplied in 40-centimetre-long boxes containing a compressed 10-metre-long duct. Supplied in 1,2-metre-long boxes containing a compressed 10-metre-long duct.