Flexible air ducts

Air ducts have a spirally twisted design. They are used to connect end elements of vent systems through inaccessible areas and to hook up consumer devices (such as gas boilers, gas columns, cooker hoods, etc.) to exhaust shafts. The tube's material is aluminum foil with a thickness of 0.08-0.12 mm. The standard stretched length is 3 meters (compressed length is 0.5 m). The temperature of transferred air (vapors) is from -30°C up to +300°C. The diameter of air ducts can be 80, 90, 100, 110, 115, 120, 125, 130, 135, 140, 150, 160, 170, 200, 225, 250 or 315 mm.

The increased flexibility can be provided by the presence of 10 Z-shaped ribs located in-between locks. The minimum bending radius is 0.76 D mm. The triple lock-type joint enables to produce multiple compression and stretching movements without a breakdown of the air duct.

Tubes of this type include flexible air ducts made of two-layer corrugated aluminum foil or two-layer corrugated stainless steel. The ducts are likely used in plenum ventilation and air conditioning systems, fume exhaust systems and duct lines, which require high mechanical strength. They are also used in connecting to exhaust hoods or air supply ducts (ventilation channels). These tubes can be used for hot air supply in civil and industrial construction and in vehicles (yachts, trains, cars, airplanes).

Double flexible tubes are not suitable to transfer acid and alkali air. The tube's material is 0.08 - 0.12 mm aluminum foil (S1) or 0.08 - 0.12 mm stainless steel (S1).

The length of double tubes made of aluminum or stainless steel is over 1,000 mm depending on customer's requirements. The diameter (DN) of double tubes made of aluminum or stainless steel is 20-100 mm. The temperature of transferred air (vapors) is from -30°C up to +300°C (for aluminum flexible double tubes) and from -30°C up to +700°C (for stainless steel flexible double tubes).

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