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VENTS Polyvent 665-Comby

  • Description
  • Characteristics
  • Downloads
  • Dimensions
  • Colour range
  • Packing
  • Order code
  • Accessories
  • Pressure loss diagram
  • Calculation example
Description
Description
DESCRIPTION
  • Flexible heavy-duty air duct from multilayer aluminium foil, polyether and PVC with high-carbon steel wire frame.
RECOMMENDED APPLICATION
  • Applied in residential ventilation and air conditioning systems of living quarters, administrative and public premises.
FEATURES

Versus PVC foil air ducts:

  • High temperature resistance;
  • Non-flammable internal layer, fire safety class M0 (up to 250 °C) or M1 (up to 150 °C).

Versus aluminium foil air ducts:

  • High rupture resistance;
  • Better protection against outside mechanical impact;
  • Airtight, expansion- and deformation resisting.
Characteristics
Characteristics
Parameter Polyvent 665-Comby
Measurement unit
Range of sizes Ø 102; 127; 152 mm
Air duct, internal layer Aluminium foil laminated with polyester film -
Air duct wire steel spring, 0.8-2 mm thick -
Air duct, external layer PVC -
Safety class incombustible (for M0 model), self-extinguishing (for M1 model) -
Operating temperature range -30 ... +250 (for M0), -30 ... +150 (for M1) °С
Standard length 1; 1,5; 2; 2,5; 3; 6; 10 m
Available lengths (cutting) 1; 1,5; 2; 2,5; 3; 6; 10 m
Air speed 30 m/s
Maximum operating pressure 3000 Pa
Files archieve
Downloads
Select document type
  • Advertising and printing products
  • Certificates
  • Technical documentation
Name
"Polyvent 665-Comby" product description 05-2022 (pdf 859.6Kb)
Download high quality image "Polyvent 665 Comby" (psd 1.1Mb)
Download image "Polyvent 665 Comby" for your website (png 282.04Kb)
Dimensions
Characteristics
Parameter Value Measurement unit
Colour range
Colour range
White
(_)
Packing
Packing
   
Cardboard box   Unit coloured packing   Net
Order code
Order code
Polyvent 665 – Comby fire safety class Ø / length
             
  M0          
  M1          
Accessories
Accessories
Diffusers and air disk valves   Grilles and hoods   Backdraft dampers   Fittings   Clamps
                 
Pressure loss diagram
Pressure loss diagram

PRESSURE LOSS DIAGRAM PER 1 M STRETCHED AIR DUCT

Calculation example
Calculation example

 

  • Select a curve that matches the air duct diameter [mm], 200 mm in this case.
  • Find the intersection point of this line with the vertical line of the required air flow in m³/h, 500 m³/h in this case.
  • The horizontal line that shows the pressure loss in Pa per 1 m straight air duct crosses this intersection point.
  • Multiply pressure loss value (2.4 Pa/m at 20 °C) by total air duct length to get the total pressure loss value. To calculate pressure loss in case of bends consider each bend as extra air duct meter.
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