VENTS Polyvent N

Description

DESCRIPTION	RECOMMENDED APPLICATION
Flexible air duct from metalized polyester film. Spiral frame from high-carbon steel wire.	Applied in residential and industrial ventilation, heating and air conditioning systems with no special requirements to the combustibility and temperature resistance, in heat accumulation units and peripheral sections of large central utility systems with the maximum pressure 3000 Pa. Recommended for ventilation of child care centres, educational and medial facilities, spa resorts.
FEATURES
Pollution-free flexible non-insulated air duct. No harmful substances emission during operation. High elasticity and temperature resistance: short-time resistance up to +120 °C.

Characteristics

Parameter	Polyvent N	Measurement unit
Range of sizes	Ø 82; 102; 127; 152; 182; 203; 254; 315; ...630	mm
Air duct base	metalized polyester film (45 μm)	-
Air duct wire	Steel spring, 0.8-1.5 mm thick	-
Operating temperature range	-30 ... +120	°С
Standard length	1; 1.5; 3; 7.6	m
Available lengths (cutting)	1; 1.5; 3; 7.6	m
Air speed	30	m/s
Maximum operating pressure	3000	Pa

Files archieve

Downloads

Dimensions

Characteristics

Parameter	Value	Measurement unit

Colour range

Aluminium

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Packing


Cardboard box		Unit coloured packing		Net

Order code

Polyvent N

length

Accessories

Diffusers and air disk valves

Grilles and hoods

Pressure loss diagram

PRESSURE LOSS DIAGRAM PER 1 M STRETCHED AIR DUCT

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.