The 4 Seasons side air inlet is characterized by a fixed hinge point. The body is made of high quality formply and the vent is well insulated and has absolutely no cracks. This makes the 4 Seasons side air inlet a very solid, simple and reliable side air inlet that has been proving its worth for 20 years.
The vent of the 4 Seasons side air inlet opens at the top first and sends the air straight into the barn. When the upper part of the vent is open 10 – 15%, the lower part will also open. This deflects the incoming air downward, creating a gentle rolling effect and optimally directing the air to the right part of the barn.
All 4 Seasons side air inlets have a formply body and are available in any size. The opening in the wall should be 6 mm larger than the formply body. For concrete barns, we make custom-made embedded frames.
Type | VIER3000 | VIER4000 | VIER5000 |
10 Pa - m3/h | 2100 | 2800 | 3600 |
20 Pa - m3/h | 3000 | 4000 | 5000 |
30 Pa - m3/h | 3700 | 4900 | 6200 |
Area - cm2 | 1410 | 1860 | 2370 |
Width - mm | 600 | 700 | 800 |
Height - mm | 330 | 360 | 390 |
Depth - mm | 200 | 200 | 200 |