Differences Between Spiral and Prismatic Ventilation Ducts

The performance of ventilation systems is directly related to the type of duct used. In particular, spiral and prismatic ventilation ducts are the two most commonly preferred systems. When choosing between these two duct types, factors such as project requirements, aesthetic expectations, and cost should be considered.

Spiral Ventilation Ducts

Spiral ducts are produced in a round form and are generally made of galvanized steel. They are highly advantageous in terms of airtightness and airflow.

Advantages:

Less air leakage
Aesthetic appearance (especially in open ceiling projects)
Lower friction loss
Fast installation

Areas of Use:

Shopping malls
Offices
Cafes and restaurants

Prismatic Ventilation Ducts

Prismatic ducts have a square or rectangular cross-section. They are mostly preferred in places where large volumes of air need to be transported.

Advantages:

High air carrying capacity
Flexibility in space usage
Suitability for industrial applications

Areas of Use:

Factories
Production facilities
Warehouses

Which is Better?

There is no single answer to this question.

If aesthetics and low noise are important: Spiral duct
If high capacity and large volume are required: Prismatic duct

The right choice should be made according to the needs of the project.

Choosing the right duct in ventilation systems is critical in terms of energy efficiency and system performance. Spiral and prismatic ducts offer different advantages and provide maximum efficiency when used in the right project.