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VENTS Non-insulated air ducts Polyvent 661 series

VENTS Non-insulated air ducts Polyvent 661 series

Flexible PVC film non-insulated air ducts with steel wire frame (110 μm).

Model features
  • Ventilation ducts and fittings
  • Description
  • Modifications
  • Downloads
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.
PRESSURE LOSS DIAGRAM PER 1 M STRETCHED AIR DUCT CALCULATION EXAMPLE:
 
  1. Select a curve that matches the air duct diameter [mm], 200 mm in this case.
  2. 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.
  3. The horizontal line that shows the pressure loss in Pa per 1 m straight air duct crosses this intersection point.
  4. Multiply pressure loss value (2.4 Pa/m at 20°С) 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.
Modifications
Modification name
+
Downloads
Downloads
Name
Brochure "Polyvent 661" (pdf 177.26Kb)
Download high quality image "Polyvent 661" (psd 1.61Mb)
Download image "Polyvent 661" for your website (png 264.3Kb)
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