Rectangular air conductors are elements of ventilation and air conditioning systems in buildings. They have a rectangular cross-section or section. The main characteristics, such as size, material and configuration, can vary depending on the specific needs of the system.
The main characteristics of rectangular air conductors:
- Materials:
- Steel: typically, galvanized or stainless steel is used. Galvanized steel is protected from corrosion by a layer of zinc.
- Aluminum: lightweight and highly resistant to corrosion.
- Plastic: some rectangular conductors can also be made of plastic such as PVC.
- Types:
- Straight conductors: used for straightforward air transfers along walls or ceilings.
- Curved conductors: used to route air along a curved route, usually around poles or obstacles.
- Branched conductors: used to distribute air to different parts of a building or room.
- Advantages of rectangular conductors:
- Efficiency: rectangular conductors can be more efficient for transporting large volumes of air compared to round conductors.
- Ease of installation: their rectangular shape can make it easier to install and connect to various components of the ventilation system.
- Usage:
- Buildings: rectangular conductors are widely used in air conditioning and ventilation systems to distribute and transfer air in industrial and commercial buildings.
- Mechanical ventilation: they can be incorporated into forced ventilation systems, providing efficient air exchange.
Rectangular air conductors should have an aspect ratio of no more than 6.3.
Air conductors of rectangular cross-section, air conductors of rectangular cross-section through which air with a temperature below 80 ° C is transported, should be made of steel sheet with a thickness of no more than:
– Rectangular air conductors with a larger side size of less than 250 mm – 0.5 mm
– Rectangular air conductors with the size of the larger side from 300 to 1000 mm – 0.7 mm
– Rectangular air conductors with the size of the larger side from 1250 to +2000 mm – 0.9 mm
Rectangular air conductors are connected to each other and to shaped products using pre-packed flanges at their ends or a rail connection. The rail connection is less commonly used due to the high labor intensity of its manufacture. Flanges are currently made of special mounting rails and angles of appropriate sizes. Sealing between the flanges of the air conductors is carried out using a special sealant glued to one of the adjacent flanges. Rectangular air conductors are convenient to use where, for various reasons, there are restrictions on the height of the ceiling of the hemming.