Spiral Ducts

Spiral ventilation ducts are a widely used solution in HVAC (heating, ventilation, and air conditioning) systems, especially in industrial buildings, commercial spaces, and modern open-design environments. Their circular shape with spiral construction ensures more uniform air distribution and better aerodynamic performance compared to rectangular ducts.

One of the main advantages of spiral ducts is their high airflow efficiency. Due to the absence of sharp corners, air resistance is lower, which helps reduce pressure losses and improve energy consumption. Additionally, the spiral structure makes these ducts mechanically stronger, reducing the need for additional reinforcements.

Spiral ducts are typically manufactured from galvanized sheet metal or stainless steel. The production process involves spiral forming of the metal sheet, which increases their durability and lifespan. They are available in various diameters, adapting to different ventilation system requirements.

The installation of spiral ducts is relatively simple and requires fewer connections compared to other shapes, helping to minimize air leakage. Connections are usually made with couplings or special connectors that ensure a stable and airtight assembly.

In terms of maintenance, spiral ducts are easy to clean due to their smooth internal surface, which reduces dust accumulation. A well-designed system using spiral ducts contributes to better indoor air quality and more efficient overall HVAC system performance.

Material thicknesses typically range from 0.5 mm to 1.0 mm, depending on the diameter and technical requirements of the project.

Standard diameters vary and are usually defined according to technical standards, as shown in the table below: