Self-tapping sleeves

Made of aluminium. Applications: Flue gas outlet for wall-mounted gas boilers (except condensing boilers), negative-pressure water heaters, kitchen hoods, tumble dryers, controlled mechanical ventilation, air conditioning of rooms with air conditioners or heat pumps, dust extraction, etc. Technical data: Available diameters: 80 to 500 mm; Maximum tested pressures: +3.100 Pa / -1.600 Pa; Airtightness class C; Bending radius R= 0,7 × Ø compressed duct / R= 1 × Ø extended duct; Operating temperature up to 200ºC; Bending capacity (maximum deformation): 25 mm; Duct breaking strength: 255 N compressed / 106 N extended; Complies with standard UNE-EN 13180:2003; Reaction to fire: M-0. Supplied in full boxes. • From 80 to 225: ducts are supplied compressed to 1 m and extendable up to 5 m. • From 250 to 350 mm: ducts are supplied compressed to 1,25 m and extendable up to 5 m. • From 400 to 500 mm: ducts are supplied compressed to 1,5 m and extendable up to 5 m. Galvanised sheet with a thickness of 0,5 mm