Flexible hose diameter 75mm transparent blue VFB75

Flexible ventilation duct for heat recovery and mechanical ventilation systems

Flexible duct with a diameter of 75 mm, made of modified polyethylene, designed for building efficient and quiet ventilation systems. It is ideal for both domestic and commercial installations where high flexibility and ease of installation are required. The translucent blue color facilitates visual inspection of the duct's condition. Supplied in a practical roll of 50 meters in length.

Construction and properties

The two-layer construction of the duct provides not only high resistance to compression (up to 450N), allowing it to be concreted over, but also effective noise reduction of the flowing air and thermal insulation. The smooth inner surface minimizes air flow resistance, which translates into energy efficiency of the system. Additionally, the inner layer with the addition of silver (50 ppm) has antibacterial properties, limiting the development of microorganisms inside the ventilation duct. Antistatic properties prevent dust from settling, maintaining high air quality and facilitating possible cleaning.

Applications and benefits

• Heat recovery: Excellent for heat recovery systems, providing efficient air transport with minimal energy losses.
• Mechanical ventilation: A universal solution for building ventilation ducts in various types of buildings.
• Installation flexibility: High flexibility allows for free routing of ducts in complex spaces without the need for additional fittings and connectors. The minimum bending radius is only 17 cm.
• Durability: Resistant to compression and impact, guaranteeing long-lasting and trouble-free operation.
• Hygiene: The antibacterial layer with silver ions ensures clean and healthy air in the rooms.
• Easy cleaning: The smooth inner surface facilitates the removal of contaminants.
• Noise reduction: The two-layer construction dampens the sound of flowing air, improving acoustic comfort.

VFB75 duct is an optimal combination of functionality, durability and hygiene – an ideal choice for professionals and demanding end customers. The internal diameter of the duct is 61 mm, and the external diameter is 76.2 mm.