Air ducts are designed for movement of supply and exhaust air. Range of application of ventilation ducts is wide. They are installed in residential buildings as well as in administrative and production enterprises.

When ordering ducts, it is necessary to take into account such characteristics as class of ducts. There are two classes of air ducts: S and N classes.

Air ducts of class S: features

A lot depends on air tightness indicators. For example, volume of air. The more loss of air during the movement the lower air tightness indicators and efficiency of ventilation system. S ducts are made of high-density steel.

Ducts of class S are characterized by reliable connection and fitted with tight lock.

The maximum volume of loss (at pressure 400Pa) – not more than 53 (l/s)m­². Air ducts of class S are installed in the rooms of category A and B.

The first category A includes:

  • storehouses with inflammable substances and alcaline accumulators;
  • storehouse with storage of acetylene solutions and paint and varnish solution;
  • rooms intended for work with inflammable substances.

These rooms belong to the category of max. level of danger. Flash temperature is 28°C.

The second category B includes rooms intended for storage of fire-hazardous substances and materials – shavings, chemical compounds, combustion temperature of which is 28°C.

  • plastics and fibreglass production shop;
  • storehouses for diesel fuel and paint and varnish products;
  • enterprises that specialize in the transportation of powdered sugar, wood flour, carbon dust;

Air ducts of class N

The marking N is short for “normal”. Galvanized ducts of class N are used more often. They are installed in residential houses, administrative buildings and production shops, as well as other enterprises that are not intended for storage of inflammable products. Max. volume od loss is 1,61 (l/s)/m2.

The main difference of S ducts from N ducts: silicone sealer is used during installation of S ducts in order to improve air tightness, while during production of air ducts of class N, a conventional galvanized sheet is used and seams are insulated by means of rubber foam.

Where to order S and N air ducts?

Our company produces air ducts using modern automation production line. All products are made of high quality galvanized steel. 

One of the main advantages of our products is 100% air tightness. This is due to the fact that we carry out aerodynamic tests and provide guarantee of quality.

Our production shop is fitted with modern equipment focused on the production of large volumes of steel products. Our production line manufactures products in record time as it is fully automated.

We manufacture not only rectangular and round ducts but also fittings – elbow bends, T-joints, duct crosses, reducers and so on.

If you want to buy air ducts at affordable price in Tashkent, contact us! We will do our best so that you to be pleased with cooperation with our company.

We also carry out the installation, repair and maintenance of steel ducts.

To order galvanized steel ducts, call us: (98) 128 42 00; (71) 207 33 32; (98) 128 04 02.

You can also download our commercial offer for production of round and rectangular ducts using customer’s raw material or manufacturer’s raw material.