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Choosing the air duct shape

Circular
Semi-circular
Segment
Quarter
Rectangular

Air socks can come in different geometric shapes, such as a circle, a semi-circle, a segment, as well as a triangular or rectangular cross section. This offers a means for them to be used in a variety of facilities, since their shape allows the ducts to be adapted to any of the customer’s requirements.

  • Circular shape ducts are used in the case that there are no limitations as to the height of the suspension away from the floor/ceiling. The diameter of the duct in this case will be as small as possible for such an air flow.
  • Semi-circular shaped ducts are used, as a rule, in facilities with low ceilings. In this case, we can augment the distance from the duct to the work area, which has a positive effect on the air's distribution. Also, an option in this instance is the use of segment-shaped ducts.
  • Quarter-shaped air ducts find use in offices, conference halls, production facilities, and other types of facilities where ventilation for various reasons cannot be situated at the center of the facility, but rather much be placed along the walls.
  • Rectangular-shaped air ducts are usually used for exhaust. Their shape is supported by an aluminum shape frame.

Overall dimensions

The diameter of the ducts that TexAir installs ranges from 160 to 2,000 mm. This is, as a rule, enough to distribute an air current of between 200 and 70,000 m³/h.

The interval of the diameters usually corresponds to the spacing of zinc-coated ducts’ diameters for convenience in calculating and replacing metallic ducts for textile ones. Also, adjoining and other sections of air socks are fully compatible with metallic shaped elements.

The length of separate air distribution segments can reach as much as two hundred meters and depends on such parameters as the duct’s material, air flow, and air pressure. The duct is divided up into segments that connect to each other using zippers according to its design.


Shaped elements

The air socks are just as good as metallic ducts when it comes to the flexibility of their installation. TexAir conducts an entire spectrum of section-shaped wares necessary to construct lines of any configuration.

Connection to the air flow equalizer
Passage
Turn
2 into 1 collector
3 into 1 collector
4 into 1 collector
Output/input adapter
Blind
Branch pipe

Material selection

Proper selection of the duct’s materials requires data on the purpose of the system (for heating, ventilation, conditioning), the temperature of the air to be supplied, the type of facility, as well as whether any special conditions exist that must be taken into account (high temperature, moisture, clean facility, aggressive environment, etc.). High-quality materials are used for production with foundations and coating of various types (polyester, glass fiber, polyurethane, silicon, etc.). This provides a means to manufacture ducts suitable for operation at any facility, regardless of the specific factors present there or the complexity.

TexAir technicians help customers find the necessary choice of material for the duct’s production, taking into account his or her individual requirements.

Distribution of heat energy
with continuous air flow

Types of fabrics Tex-Lti Tex-Sti Tex-Stp Tex-StpF Tex-StAb Tex-Fpu Tex-Fsi
Fabric contents 100% polyamide/polyester +internal polyurethane coating 100% polyester +internal polyurethane coating 100% polyester 100% polyester 100% polyester Glass fiber +double-sided polyurethane coating 100% glass fiber + double-sided silicon coating
Air permeability No No Yes Yes Yes No No
Quantity of colors 12 12 1 1 1 2 2
Fabric weight 150g/m² 230g/m² 240g/m² 180g/m² 200g/m² 510g/m² 570g/m²
G1 flammability certificate       Yes   Yes Yes
Water resistance >1000mm >2000mm       >3000mm >3000mm

Tex-Lti - TexAir light Impermeable
Tex-Sti - TexAir Standart Impermeable
Tex-Stp - TexAir Standart Permeable
Tex-StpF - TexAir Standart Permeable Fireproofl
Tex-StAb - TexAir Standart Antibacterial
Tex-Fpu - TexAir Fiber Polyurethane
Tex-Fsi - TexAir Fiber Silicone


Choice of duct color

The Tex-Lti and Tex-Sti materials are the most widespread and are used in the majority of projects. They are available in 12 different color options although customers mainly go with white or bright grey.

Fabrics with special properties are available in a limited color range.

White
Beige
Yellow
Orange
Black
Red
Bright grey
Green
Dark green
Blue
Dark grey
Dark blue

Types of fabrics by
facility categories

Types of fabrics Tex-Lti Tex-Sti Tex-Stp Tex-StpF Tex-StAb Tex-Fpu Tex-Fsi
Food industry + + + + +    
Production   + + + + + +
Logistics/warehouses   + + +   +  
Malls   + + +   +  
Public buildings + + + +   + +
Clean facilities   +     +    
Sports facilities + + + +   +  
Animal/bird husbandry   + +     + +
Pools   + + +      

TexAir ducts materials’
chemical resistance

Chemical substance Air duct material Material coating
Polyether (polyester) Polyamide Polyurethane (PUR) Silicon (VMQ)
Acetone - * - *
Formylic acid 10% - / *
Ammonia - 20% / +
Benzine + + + +
Benzol + - + -
Brake fluid + 60ºС / +
Butane / + / -
Butyl alcohol + + / -
Calcium chloride + + / /
Benzine chloride + * - -
Diesel oil + / + *
Vinegar acid 40% - / -
Formaldehyde 30% + / +
Freon 113 + / / /
Fruit juice + + + +
Glycerin + + + +
Fuel oil + + + *
Hydraulic oil + + / *
Potassium alkali - - / /
Potassium chloride + + + +
Potassium hydroxide - / - *
Flax seed oil + + + *
Methanol - * / +
Dichloromethane - - - -
Lactic acid + 10% / /
Mineral oils + + + +
Motor oils + + + +
Sodium carbonate + + / /
Sodium chloride + 10% + +
Sodium hydroxide - / - *
Sodic alkali 40% 10% / -
Hydrogen nitrate 10% - - -
Hydrochloric acid + - - /
Lube oil + + + +
Carbon bisulphide - * / -
Sulphuric acid 70% - / 25%
Soap solution + + * +
Cleaner / / * +
Terebenthene + + / -
Tetrachlorolnethane + * - -
Toluene + + - -
Trichloroethylene - - - -
Water (any) + + + +
Tartaric acid + + + +
Dimethylbenzene + + - -
Zinc sulphate + / / +
Citric acid + 10% / +

+    stable in any concentration
%   stable in a maximum % concentration
°C   stable up to a maximum temperature
*    conditionally stable
-    unstable
/     no data