Umbrellas ventilation systems
Umbrellas of ventilation systems made of galvanized steel
Umbrellas (diffusers) of ventilation systems - one of the design parts included in the ventilation ventilator used in enterprises, in order to improve efficiency system. It is installed on the head of the exhaust channel of the deflector, working under the law of Bernoulli.
This law explains the creation of some vacuum in the upper zone of the head, which allows you to direct air masses from the tube to the outside, to remove carcinogenic substances contained in the air, fats, and also excessive heat and moisture.
Umbrellas for ventilation systems are rectangular
The shape and shape of the umbrella depends directly on the shape of the existing chimney, as well as on the design purpose, which affects the parameter, such as the umbrellas of steel ventilation systems, the price considered below.
Types of diffusers used:
- Circulating. For cleaning air in food industry. It is installed above the elements of the thermal equipment - furnaces, fryers, etc.
- Evacuation. For cleaning air in the premises of chemical production. Install above the rooms containing dangerous concentration of pollutants.
Ventilation system umbrellas price
Consider the types of constructions of the latter.
1 type. Umbrellas of ventilation systems are rectangular with a rectangular diffuser and an exhaust channel. Are installed on the chimneys of a rectangular shape.
2 type. Umbrellas of ventilation systems are round with a round diffuser and an exhaust channel. They are installed on chimneys of circular shape.
ГОСТ umbrellas of ventilation systems
According to ГОСТ, the materials for diffusers are:
- Galvanized steel.
- Cold rolled rolled steel
- Hot-rolled sheet steel.
Umbrellas of ventilation systems from sheet galvanized steel
The general list of umbrellas for ventilation systems ГОСТ, which will help in the correct choice of material and installation:
- ГОСТ 22270-76 (СТ СЭВ 2145-80). Equipment for air conditioning, ventilation and heating. Terms and definitions (with changes No.1, 2);
- ГОСТ 29093-91 Umbrellas. General specifications;
- ГОСТ 14918-80 - "Galvanized thin-sheet steel";
- ГОСТ 24751-81 - Air-handling equipment. Nominal sizes of the cross-sections of the connections";
- ГОСТ 30494-96 - "Residential and public buildings. Indoor Climate Parameters;
- ГОСТ 19904-90 - Rolled cold-rolled sheet. Assortment;
- ГОСТ 19903-74 - Rolled hot-rolled sheet. Assortment.
With such a parameter, as the umbrellas of ventilation systems, the price can also be found on the specialized website of the Internet, where the suppliers are presented with a large selection of materials of different price categories.