Application
Special characteristics
Nominal sizes
Variants
Construction
Parts and characteristics
Classification
II 2D Ex h IIIC T80°C Db
Useful additions
Construction features
Material and surfaces
Galvanised sheet steel construction
Powder-coated construction (P1)
Variant with acoustic cladding (-D)
Mineral wool
Standards and guidelines
Meets the hygiene requirements of
Casing air leakage
ATEX Directive 2014/34/EU
Maintenance
Functional description
The air terminal unit is a mechanical self-powered unit and works without external power supply. A damper blade with low-friction bearings is adjusted by aerodynamic forces so that the set volume flow rate is kept constant within the differential pressure range. The aerodynamic forces of the airflow create a closing torque on the damper blade. An inflating bellows amplifies this force and at the same time acts as a damping element. The closing torque is countered by a leaf spring that unrolls over a cam plate. The cam plate is adapted in such a way that the damper blade moves when the differential pressure changes. As a result, the volume flow rate remains constant within narrow tolerances.
Efficient commissioning
Using the rotary knob, the desired volume flow setpoint can be set quickly on the external scale, no prior measurement required. The advantage over conventional flow adjustment dampers is that no repeated measurements or adjustments during commissioning are required. Should the system pressure change, e.g. by opening or closing of duct sections, the flow rates in the entire system will also change if flow adjustment dampers are used; however, this is not the case with mechanical self-powered air terminal units. The air terminal unit reacts immediately and keeps the set air volume constant.
Quick sizing tables provide a good overview of the minimum differential pressures, the volume flow rate accuracy and the room sound pressure levels that can be expected. Intermediate values may be achieved by interpolation. Precise results and spectral data for all control components can be obtained by using our Easy Product Finder design programme. The nominal size is initially selected according to the given volume flow rates qvmin and qvmax.
Volume flow rate ranges and minimum differential pressure values
The minimum pressure difference of the air terminal units is an important variable for planning the air duct network and for dimensioning the fan, including speed control. It must be ensured that under all operating conditions a sufficient pressure difference (Δpst min) is present above the air terminal unit. The measurement point(s) for fan speed control must be selected accordingly.
Volume flow rate ranges and minimum differential pressure values
NS | qv [l/s] | qv [m³/h] | Δpst min [Pa] | Δqv [±%] | |
---|---|---|---|---|---|
1 | 2 | ||||
200 × 100 | 39 | 140 | 50 | 7 | 17 |
200 × 100 | 68 | 246 | 50 | 22 | 11 |
200 × 100 | 104 | 376 | 50 | 51 | 8 |
200 × 100 | 164 | 590 | 50 | 125 | 5 |
300 × 100 | 65 | 234 | 50 | 9 | 13 |
300 × 100 | 137 | 492 | 50 | 39 | 8 |
300 × 100 | 199 | 716 | 50 | 82 | 6 |
300 × 100 | 260 | 936 | 50 | 140 | 5 |
300 × 150 | 82 | 295 | 50 | 5 | 15 |
300 × 150 | 152 | 547 | 50 | 17 | 10 |
300 × 150 | 294 | 1059 | 50 | 64 | 6 |
300 × 150 | 460 | 1656 | 50 | 157 | 5 |
300 × 200 | 120 | 432 | 50 | 6 | 14 |
300 × 200 | 197 | 710 | 50 | 16 | 10 |
300 × 200 | 349 | 1257 | 50 | 51 | 7 |
300 × 200 | 515 | 1854 | 50 | 111 | 5 |
400 × 200 | 200 | 720 | 50 | 9 | 12 |
400 × 200 | 337 | 1213 | 50 | 27 | 8 |
400 × 200 | 585 | 2106 | 50 | 80 | 6 |
400 × 200 | 875 | 3150 | 50 | 179 | 4 |
500 × 200 | 180 | 648 | 50 | 5 | 15 |
500 × 200 | 271 | 977 | 50 | 11 | 11 |
500 × 200 | 554 | 1995 | 50 | 46 | 7 |
500 × 200 | 900 | 3240 | 50 | 122 | 5 |
600 × 200 | 225 | 810 | 50 | 5 | 15 |
600 × 200 | 381 | 1370 | 50 | 15 | 10 |
600 × 200 | 689 | 2480 | 50 | 49 | 7 |
600 × 200 | 1010 | 3636 | 50 | 106 | 5 |
400 × 250 | 200 | 720 | 50 | 6 | 14 |
400 × 250 | 333 | 1198 | 50 | 17 | 10 |
400 × 250 | 537 | 1932 | 50 | 43 | 7 |
400 × 250 | 885 | 3186 | 50 | 117 | 5 |
500 × 250 | 235 | 846 | 50 | 5 | 15 |
500 × 250 | 460 | 1655 | 50 | 20 | 9 |
500 × 250 | 815 | 2932 | 50 | 64 | 6 |
500 × 250 | 1190 | 4284 | 50 | 136 | 5 |
600 × 250 | 300 | 1080 | 50 | 6 | 14 |
600 × 250 | 499 | 1795 | 50 | 17 | 10 |
600 × 250 | 897 | 3231 | 50 | 54 | 7 |
600 × 250 | 1310 | 4716 | 50 | 114 | 5 |
400 × 300 | 310 | 1116 | 50 | 10 | 12 |
400 × 300 | 553 | 1992 | 50 | 32 | 8 |
400 × 300 | 902 | 3249 | 50 | 85 | 6 |
400 × 300 | 1280 | 4608 | 50 | 171 | 4 |
500 × 300 | 365 | 1314 | 50 | 9 | 12 |
500 × 300 | 535 | 1928 | 50 | 19 | 9 |
500 × 300 | 998 | 3593 | 50 | 66 | 6 |
500 × 300 | 1580 | 5688 | 50 | 166 | 4 |
600 × 300 | 350 | 1260 | 50 | 6 | 14 |
600 × 300 | 669 | 2409 | 50 | 21 | 9 |
600 × 300 | 1137 | 4094 | 50 | 60 | 6 |
600 × 300 | 1750 | 6300 | 50 | 142 | 5 |
400 × 400 | 400 | 1440 | 50 | 9 | 12 |
400 × 400 | 674 | 2425 | 50 | 27 | 8 |
400 × 400 | 1170 | 4212 | 50 | 80 | 6 |
400 × 400 | 1750 | 6300 | 50 | 179 | 4 |
500 × 400 | 360 | 1296 | 50 | 5 | 15 |
500 × 400 | 715 | 2574 | 50 | 19 | 9 |
500 × 400 | 1330 | 4787 | 50 | 66 | 6 |
500 × 400 | 1800 | 6480 | 50 | 122 | 5 |
600 × 400 | 450 | 1620 | 50 | 5 | 15 |
600 × 400 | 958 | 3448 | 50 | 24 | 9 |
600 × 400 | 1595 | 5741 | 50 | 66 | 6 |
600 × 400 | 2020 | 7272 | 50 | 106 | 5 |
500 × 500 | 470 | 1692 | 50 | 5 | 15 |
500 × 500 | 1143 | 4113 | 50 | 31 | 8 |
500 × 500 | 1882 | 6776 | 50 | 85 | 6 |
500 × 500 | 2380 | 8568 | 50 | 136 | 5 |
600 × 500 | 600 | 2160 | 50 | 6 | 14 |
600 × 500 | 1246 | 4487 | 50 | 26 | 8 |
600 × 500 | 2084 | 7503 | 50 | 72 | 6 |
600 × 500 | 2620 | 9432 | 50 | 114 | 5 |
600 × 600 | 700 | 2520 | 50 | 6 | 14 |
600 × 600 | 1948 | 7014 | 50 | 44 | 7 |
600 × 600 | 2921 | 10517 | 50 | 99 | 5 |
600 × 600 | 3500 | 12600 | 50 | 142 | 5 |
1 Basic unit
2 Additional silencer TX (consider additionally)
Quick sizing table for sound pressure levels
The quick sizing tables include common sound insulation and attenuation values. If the sound pressure level is above the permissible value, a larger air terminal unit and/or a silencer or acoustic cladding are required. For more information on the acoustic data, see General Information and Nomenclature.
Sound pressure level at differential pressure 150 Pa
NS | qv [l/s] | qv [m³/h] | 1 | 2 | 3 | 4 |
---|---|---|---|---|---|---|
200 × 100 | 39 | 140 | 40 | 23 | 26 | 18 |
200 × 100 | 68 | 246 | 44 | 29 | 31 | 23 |
200 × 100 | 104 | 376 | 47 | 34 | 35 | 27 |
200 × 100 | 164 | 590 | 50 | 38 | 38 | 31 |
300 × 100 | 65 | 234 | 41 | 26 | 28 | 20 |
300 × 100 | 137 | 492 | 47 | 35 | 35 | 28 |
300 × 100 | 199 | 716 | 48 | 38 | 38 | 33 |
300 × 100 | 260 | 936 | 49 | 40 | 41 | 36 |
300 × 150 | 82 | 295 | 43 | 26 | 30 | 21 |
300 × 150 | 152 | 547 | 47 | 32 | 35 | 27 |
300 × 150 | 294 | 1059 | 49 | 36 | 40 | 33 |
300 × 150 | 460 | 1656 | 50 | 38 | 44 | 38 |
300 × 200 | 120 | 432 | 44 | 29 | 31 | 23 |
300 × 200 | 197 | 710 | 47 | 33 | 36 | 29 |
300 × 200 | 349 | 1257 | 49 | 37 | 42 | 36 |
300 × 200 | 515 | 1854 | 51 | 39 | 46 | 41 |
400 × 200 | 200 | 720 | 45 | 30 | 34 | 25 |
400 × 200 | 337 | 1213 | 47 | 33 | 39 | 31 |
400 × 200 | 585 | 2106 | 50 | 37 | 45 | 38 |
400 × 200 | 875 | 3150 | 53 | 40 | 49 | 43 |
500 × 200 | 180 | 648 | 47 | 29 | 34 | 23 |
500 × 200 | 271 | 977 | 48 | 30 | 37 | 27 |
500 × 200 | 554 | 1995 | 49 | 33 | 42 | 33 |
500 × 200 | 900 | 3240 | 50 | 36 | 45 | 38 |
600 × 200 | 225 | 810 | 48 | 28 | 36 | 25 |
600 × 200 | 381 | 1370 | 48 | 29 | 39 | 29 |
600 × 200 | 689 | 2480 | 48 | 32 | 43 | 34 |
600 × 200 | 1010 | 3636 | 49 | 33 | 45 | 37 |
400 × 250 | 200 | 720 | 44 | 28 | 32 | 23 |
400 × 250 | 333 | 1198 | 46 | 30 | 37 | 28 |
400 × 250 | 537 | 1932 | 48 | 33 | 41 | 33 |
400 × 250 | 885 | 3186 | 49 | 36 | 45 | 38 |
500 × 250 | 235 | 846 | 47 | 28 | 35 | 24 |
500 × 250 | 460 | 1655 | 47 | 30 | 39 | 29 |
500 × 250 | 815 | 2932 | 47 | 32 | 42 | 34 |
500 × 250 | 1190 | 4284 | 47 | 34 | 44 | 37 |
600 × 250 | 300 | 1080 | 47 | 29 | 37 | 26 |
600 × 250 | 499 | 1795 | 47 | 30 | 39 | 30 |
600 × 250 | 897 | 3231 | 47 | 32 | 43 | 35 |
600 × 250 | 1310 | 4716 | 47 | 34 | 45 | 37 |
400 × 300 | 310 | 1116 | 44 | 29 | 35 | 27 |
400 × 300 | 553 | 1992 | 47 | 33 | 41 | 33 |
400 × 300 | 902 | 3249 | 50 | 36 | 46 | 39 |
400 × 300 | 1280 | 4608 | 52 | 39 | 50 | 43 |
500 × 300 | 365 | 1314 | 47 | 30 | 38 | 28 |
500 × 300 | 535 | 1928 | 48 | 31 | 40 | 31 |
500 × 300 | 998 | 3593 | 48 | 33 | 44 | 36 |
500 × 300 | 1580 | 5688 | 49 | 35 | 47 | 39 |
600 × 300 | 350 | 1260 | 47 | 29 | 37 | 26 |
600 × 300 | 669 | 2409 | 47 | 30 | 41 | 31 |
600 × 300 | 1137 | 4094 | 47 | 32 | 43 | 35 |
600 × 300 | 1750 | 6300 | 47 | 34 | 46 | 39 |
400 × 400 | 400 | 1440 | 45 | 29 | 37 | 28 |
400 × 400 | 674 | 2425 | 47 | 33 | 42 | 34 |
400 × 400 | 1170 | 4212 | 50 | 37 | 48 | 41 |
400 × 400 | 1750 | 6300 | 53 | 40 | 52 | 46 |
500 × 400 | 360 | 1296 | 47 | 28 | 37 | 26 |
500 × 400 | 715 | 2574 | 48 | 31 | 42 | 32 |
500 × 400 | 1330 | 4787 | 49 | 34 | 46 | 38 |
500 × 400 | 1800 | 6480 | 50 | 36 | 48 | 41 |
600 × 400 | 450 | 1620 | 48 | 28 | 39 | 28 |
600 × 400 | 958 | 3448 | 48 | 30 | 43 | 34 |
600 × 400 | 1595 | 5741 | 48 | 32 | 47 | 38 |
600 × 400 | 2020 | 7272 | 49 | 33 | 48 | 40 |
500 × 500 | 470 | 1692 | 47 | 28 | 38 | 27 |
500 × 500 | 1143 | 4113 | 47 | 31 | 43 | 34 |
500 × 500 | 1882 | 6776 | 47 | 33 | 45 | 38 |
500 × 500 | 2380 | 8568 | 47 | 34 | 47 | 40 |
600 × 500 | 600 | 2160 | 47 | 29 | 40 | 29 |
600 × 500 | 1246 | 4487 | 47 | 31 | 44 | 35 |
600 × 500 | 2084 | 7503 | 47 | 32 | 47 | 39 |
600 × 500 | 2620 | 9432 | 47 | 34 | 48 | 40 |
600 × 600 | 700 | 2520 | 47 | 29 | 40 | 29 |
600 × 600 | 1948 | 7014 | 47 | 31 | 46 | 37 |
600 × 600 | 2921 | 10517 | 47 | 33 | 48 | 40 |
600 × 600 | 3500 | 12600 | 47 | 34 | 49 | 42 |
Note
The sound power levels for calculating the sound pressure levels were measured in the TROX laboratory according to DIN EN ISO 5135 - see "General information and Nomenclature".n“.
Specification text
Air terminal units in rectangular design for constant air volume systems, mechanically self-powered, without external power supply, for supply or extract air, in 19 nominal sizes.
Air terminal unit ready for commissioning, consisting of the casing with smooth-running control damper, control bellows and external cam disc with leaf spring as well as components for equipotential bonding and explosion protection. The air terminal units are factory adjusted and preset to a reference air volume. Sound power level measured according to DIN EN ISO 5135. Meets the hygiene requirements according to VDI 6022. Meets the requirements of ATEX Directive 2014/34 EU.
Special features
Materials and surfaces
Galvanised sheet steel construction
Powder-coated construction (P1)
Variant with acoustic cladding (-D)
Mineral wool
Construction
Technical data
Sizing data
Air-regenerated noise
Case-radiated noise
EN-Ex | – | D | – | P1 | / | 400 × 200 |
| | | | | | | | |||
1 | 2 | 3 | 4 |
Order example: EN-Ex-D-P1/400×200
Type | EN-Ex |
Acoustic cladding | with acoustic cladding |
Material | Powder-coated RAL 7001 (silver grey) |
Nominal size [mm] | Width 400, height 200 |
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Siamo qui per te
Specifichi il suo messaggio ed il tipo di richiesta
Tel.: +39 029829741 | Fax: +39 0298297460
Contatti
Grazie per il tuo messaggio!
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Il nostro dipartimento per la gestione delle richieste ti contatterà appena possibile.
Per domande di carattere generale riguardanti i nostri prodotti o servizi, è possibile contattare:
Tel.: +39 029829741 | Fax: +39 029829760