Ufojet is designed specifically for out blowing the moist exhaust air on the roof of the buildings.
Ufojet includes the outer casing, air flow guidance rings and top cap, which is isolated and could be used as an access door.
The air is blown upwards with a high velocity and small pressure loss.
The unique construction of the Ufojet prevents water penetrating into the duct system and the inside of the unit from freezing.
| Size | ø D | ø d | ø B | A | C | H | Air flow rate | Pressure loss | Weight |
|---|---|---|---|---|---|---|---|---|---|
| 160 | 555 | 172 | 320 | 100 | 180 | 420 | 100-200 l/s | 30-100 Pa | 5 kg |
| 200 | 555 | 212 | 320 | 100 | 180 | 420 | 150-300 l/s | 25-90 Pa | 5 kg |
| 250 | 555 | 262 | 320 | 100 | 180 | 420 | 200-400 l/s | 25-100 Pa | 5 kg |
| 315 | 850 | 327 | 495 | 120 | 270 | 615 | 400-700 l/s | 25-70 Pa | 10 kg |
| 400 | 850 | 412 | 495 | 120 | 270 | 615 | 700-1000 l/s | 30-80 Pa | 10 kg |
| 500 | 1065 | 512 | 615 | 120 | 300 | 735 | 1000-1600 l/s | 30-80 Pa | 15 kg |
| 630 | 1460 | 642 | 765 | 120 | 350 | 995 | 1600-2600 l/s | 35-80 Pa | 25 kg |
| 800 | 1460 | 812 | 765 | 120 | 350 | 995 | 2600-5000 l/s | 30-120 Pa | 25 kg |
Ufojet is supplied as standard with a round connection and it is very easy to install on the channel.
Pressure loss and sound data
Effect of distance on sound pressure level
5 m sound pressure level decreases 7 dB(A)
10 m sound pressure level decreases 23 dB(A)
15 m sound pressure level decreases 29 dB(A)
Etäisyyden vaikutus äänenpainetasoon
5 m äänenpainetaso alenee 7 dB(A)
10 m äänenpainetaso alenee 23 dB(A)
15 m äänenpainetaso alenee 29 dB(A)
Velocity of out blowing
| Duct size | k |
|---|---|
| ø200 | 0,092 |
| ø250 | 0,120 |
| ø315 | 0.252 |
| ø400 | 0,304 |
| ø500 | 0,548 |
| ø630 | 0,852 |
| ø800 | 1,380 |
Formula for velocity of out blowing:
v= velocity of out blowing, m/s
d= duct diameter, m
p= total pressure loss, Pa
k= coefficient
The airs out blowing rate at the rectangular channel can be calculated using the same formula.
Sound attenuation
Sound attenuation, dB by octave bands (63-8000 Hz) ISO 7235
| Size | 63 | 125 | 250 | 500 | 1000 | 2000 | 4000 | 800 |
|---|---|---|---|---|---|---|---|---|
| 200 | 4 | 3 | 3 | 5 | 3 | 2 | 4 | 6 |
| 250 | 3 | 2 | 2 | 4 | 3 | 3 | 3 | 6 |
| 315 | 2 | 2 | 1 | 2 | 2 | 2 | 2 | 4 |
| 400 | 2 | 2 | 1 | 2 | 2 | 2 | 1 | 4 |
| 500 | 1 | 2 | 2 | 1 | 2 | 1 | 1 | 4 |
| 630 | 1 | 1 | 2 | 1 | 1 | 1 | 1 | 3 |
| 800 | 1 | 1 | 2 | 1 | 1 | 1 | 1 | 3 |
Product Brochure
UFOJET – 400 – MA – KL
Ufojet construction includes also air flow measurement tap.
The standard material for the Ufojet is marine-grade aluminum.
It is also available in stainless steel (RST) and painted (RAL colors).
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