ETIM Induction duct

Description

Circular section induction ducts. The perforations along the length of the duct provide a strong inductive effect, generating micro-vortices and consequently an optimal mixing of the supplied air.

Standard ducts are circular and are made in 1-meter sections with 90° coupling flanges and reinforcements at the ends. The perforations are distributed along the duct length and are created with specific diameters and geometries for each system and according to the environmental context. The large number of possible configurations makes the induction system a versatile solution for many applications in both civil and industrial settings.

Features

• Duct made of galvanized steel sheet DX51D with thicknesses:
- Ø 150–500 mm: 0.6 mm (0.8 mm on request);
- Ø 600–900 mm: 0.8 mm;
- Ø 1000–1400 mm: 1.0 mm;
• Length: 1 meter;
• Coupling with 90° flanges and reinforcement;
• Joints using omega clamps;
• Installation height:
- 2.5 m to 3.5 m (SYSTEM A)
- 3.5 m to 10 m (SYSTEM B)
- 9 m to 18 m (SYSTEM C)

On request

• ETIM-D version: semi-circular ducts with reduced transport costs, connected by interlocking modules;
• Powder-coated sheet metal with customizable RAL color;
• In stainless steel 304, 316 or copper;
• Anti-condensation treatment applicable to the above surfaces;
• ETIM-O version: open ducts to reduce transport and assembly costs using the 10 seconds system;

System A

Central installation for spaces with a height from 2.5 m to 3.5 m. Suitable for habitable environments such as offices, shops.
H = 3 m;
L = 7 m;

System B

Central installation for environments with height from 3.5 m to 10 m. Suitable for both civil and industrial settings.
H = 9 m;
L = 18 m;

System C

Asymmetrical diffusion installation to create thermal barriers for glass surfaces, etc.
H = 9 m;
L = 18 m;

N.B. Diagrams simulated with residual speed 0.2 m at 1800 mm from the ground in a more conservative way than UNI 10339 and UNI EN 13779.

Pressure drop in circular duct

The limit of use of the metal induction tube is with speeds between approximately 3.5 and 7 m/s

 
Ø 200 300 400 500 600 700 800 900 1000 1100
Air flow Pa/m
500 10                  
600 21                  
700 32                  
800 38                  
1100   10                
1200   14                
1300   17                
1400   21                
1500   25                
1600   29                
1700   33                
1800   38 10              
1900     12              
2000     18              
2250     22              
2500     25              
2750     31              
3000     36 17            
3250     43 21            
3500       24            
3750       27 10          
4000       31 12          
4500       40 17          
5000       43 21 12        
5500         25 15        
6000         29 17 10      
6500         34 21 12      
7000         39 24 15      
8000           30 20 14    
9000           36 24 18 10  
10000             29 22 13  
11000             34 25 17  
12000             41 30 21 11
13000               33 23 13
14000               41 25 15
15000                 30 18
16000                 34 20
17000                 37 22
18000                 43 24
19000                   27
20000                   29
21000                   33
22000                   34
23000                   40
24000                   43
Request for product information

ETIM

data
Message

Circular micro-perforated ducts in galvanized Z200 / painted / pre-painted / stainless steel 304 / stainless steel 316, as specified by the project manager, for air distribution in HVAC systems, ECOCLIMA brand, ETIM standard/O series.

The micro-perforations, with variable diameter and mesh, must create a high induction effect between supply and room air. Circular section ducts must be manufactured in 1 m / 1.5 m sections with 90° reinforced flange couplings. Perforations must be made with specific diameters and geometries based on the intended use of the serviced rooms.

The ECOCLIMA high-induction micro-perforated ducts are factory-calibrated to work without calibration dampers or air relief systems; the perforation pattern is specially calculated in diameter, quantity, and position for optimal air distribution.

Included in the price:
• Square to round transformation (if present)
• 90° bend (if present)
• End cap (if present)
• T-joint (if present)

Component connections must be made using screw-type clamp collars.