Premium Box Set
Draught-free ventilation and easy balancing. It guides air along the ceiling and you set the airflow directly in the box. A set for DN90 duct with the Flow 125 anemostat.
What is in the set
Plenum box with regulator and clip
1×DN90, internal Ø125 mm outlet, 330 mm long. You set the airflow directly in the box.
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Silicone duct seal
Seals the joint between the DN90 duct and the box.
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Short flange for Flow 125
Connects the plenum box to the anemostat.
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Flow 125 anemostat
Guides air sideways, along the ceiling.
View productDN90 duct is not included.
Why there are no draughts
You feel a draught when fast, cooler air lands on you. In a simulation with the anemostat in the centre of the room, the assembly prevented this as follows:*
What the airflow analysis showed
We calculated the airflow in the OpenFOAM CFD software for a 4.0 × 3.5 × 2.7 m room with a window and a door at a supply of 30 m³/h.*
Where to place the anemostat
The centre of the room, on a flat ceiling without obstacles, gave the best result. Air was distributed most evenly by height there, and the least escaped through the gap under the door.*
| After 4 minutes | Centre | Corner by window | By the door |
|---|---|---|---|
| Air speed in 95 % of occupied zone | up to 0.058 m/s | up to 0.073 m/s | up to 0.056 m/s |
| DR in 95 % of occupied zone | 2.1 % | 4.4 % | 1.8 % |
| Fresh air at foot level | 4.15 % | 7.29 % | 2.82 % |
| Fresh air at seated head height | 4.35 % | 4.97 % | 6.93 % |
| Supplied air lost through the gap in 4.5 min | about 1.3 % | about 2.8 % | about 4.4 % |
Easy balancing directly in the box
The regulator is part of the box. You balance the airflow during installation and commissioning without closing the anemostat, which stays in its designed position.
Ideal for
Technical information
| Parameter | Value |
|---|---|
| Duct connection | 1×DN90, silicone seal and orange clip |
| Box outlet | internal Ø125 mm |
| Box length | 330 mm |
| Regulation | integrated airflow regulator |
| Terminal element | Flow 125 anemostat |
| Pressure drop at 30 m³/h* | about 13 to 14 Pa for the set with 1.1 m of DN90 duct, of which the anemostat and outlet about 7 to 8 Pa |
FAQ
What does the Premium Box Set include?
Plenum box with regulator and clip, silicone duct seal, short flange and Flow 125 anemostat. DN90 duct is ordered separately.
Why does this set avoid draughts?
In the simulation, air travels along the ceiling, where it slows down and nearly reaches room temperature. Air speed is then below 0.06 m/s in 95 % of the occupied zone. Cold air running down a cold window still remains.
Where should the anemostat go?
As close to the centre of the room as possible, on a flat ceiling without obstacles. Best avoid a position next to the door.
Where is the airflow set?
With the regulator in the box, during installation and commissioning.
Are these values measured?
No, they are CFD simulation results for a supply of 30 m³/h. Physical airflow measurement is in progress, and we will quote noise only after measuring it.
No draughts. Regulation directly in the box.
The Premium Box Set combines the plenum box, seal, flange and Flow 125 anemostat into one set.
* CFD simulation results, not measurements. Supply 30 m³/h at 21 °C, regulator open; room 4.0 × 3.5 × 2.7 m at 23 °C, window glass 18 °C. Unless stated otherwise, the anemostat is in the centre of the room. Pressure drop: isothermal calculation 13.8 Pa, room calculation 12.9 Pa.
| Brand | Ventit |
VentPlan data
VentPlan model
Component
- Model
- Premium plenum box with regulator 1xDN90 / Ø125 ID + anemostat
- Manufacturer
- Ventit
- Category
- plenums
3D preview
OBJ + MTLTransition box for connecting 1× DN90 to main port Ø125. Available: 2D diagram, 3D OBJ model, MTL materials.
| Component type | transition box |
|---|---|
| Secondary connections | 1× DN90 |
| Main port | Ø125 |
| 3D model | OBJ + MTL |