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VENTS Polyvent 661

  • Description
  • Characteristics
  • Downloads
  • Dimensions
  • Colour range
  • Packing
  • Order code
  • Accessories
  • Pressure loss diagram
  • Calculation example
Description
Description
DESCRIPTION FEATURES
  • Flexible PVC air duct with spiral high-carbon steel wire frame.
  • Low pressure loss due to increased wall rigidity.
  • Long service life.
  • Heavy-flammable, flame-retarding, self-extinguishing.
RECOMMENDED APPLICATION
  • Applied in residential and commercial ventilation systems.
  • Recommended for use in office premises, trade and recreational buildings, etc.
Characteristics
Characteristics
Parameter Polyvent 661
Measurement unit
Range of sizes Ø 102; 127; 152 mm
Air duct base PVC film (110 μm) -
Air duct wire steel spring, 0.8 mm thick -
Operating temperature range -18 ... +70 °С
Standard length 6 m
Available lengths (cutting) 6 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 661" product description 02-2020 (pdf 807.08Kb)
Download high quality image "Polyvent 661" (psd 1.61Mb)
Download image "Polyvent 661" for your website (png 264.3Kb)
Dimensions
Characteristics
Parameter Value Measurement unit
Colour range
Colour range
White
(_)
Packing
Packing
   
Cardboard box   Unit coloured packing   Net
Order code
Order code
Polyvent 661 Ø / length
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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