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Description
Description of square supply or extraction vents
- The vents are in diameter 125 to adapt to the vent connection tees.
- Material: ABS thermoplastic polymer + claw cuff
- Colour: White RAL 9016
- Maximum extraction rate: 45 to 150 m3/h
- Coanda effect and low induction mouth
- Dimensions of the visible part: Height 22 mm x 205 mm x 205 mm
Advantages of square supply and extract valves
- 4 louvers for airflow direction
- Avoids the deposit of dust on the ceiling
- Acoustic comfort
How to balance double flow ventilation flows?
There are generally two ways to balance the flow rates:
- With self-adjusting vents in the service rooms (WC, bathroom, other water rooms):
Flow rate calibrated at 15 m3/h or 30 m3/h and double flow rates in the kitchen. The other rooms are equipped with manually adjustable vents. Goal :
- comply with the decree of March 24, 1982 on the minimum and maximum flow rates to be extracted from service rooms (see table above),
Advantages :
- easier to balance,
- maximum regulatory flow rate to be extracted in the kitchen is more easily reached.
Disadvantages:
- self-adjusting valves require a pressure of at least 50 Pa to operate correctly,
Precaution:
- it is necessary to check with the flowmeter or the pressure sensor the correct functioning of the vents.
- With manually adjustable vents in all rooms:
The opening of the mouths can be more or less closed according to the desired flow.
Advantages :
- flexibility of flow rates and general over-ventilation of the building,
- less network load losses.
Disadvantages:
- balancing requiring equipment (flow meter) and specific methodology.
- this solution generally offered by foreign manufacturers does not allow compliance with the order of March 1982 on the minimum and maximum flow rates to be extracted.
Features
Manufacturer
Unelvent
Origin
France or Spain
CMV
Type of outlet
- Blowing in
- Suction
- Non adjustable
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