Steel air exhaust valves with adjustable core and 50 mm mounting frame
Explanation
DVS = Type valve (incl. mounting frame and clamping ring)
100 = Connection diameter
Quick selection
|
r | -15 | 0 | +12 | -10 | 0 | +10 | -17 | 0 | +9 | -15 | 0 | +10 | -20 | 0 | +5 | -25 | 0 | +20 | | 15 | Ps | 100 | | | 90 | | | 30 | | | | | | | | | | | | | Lw | 31 | | | 19 | | | <15 | | | | | | | | | | | | | 25 | Ps | | <20 | | | <20 | | 80 | | | 20 | | | 30 | | | <20 | | | | Lw | | <15 | | | <15 | | 23 | | | <10 | | | <15 | | | 15 | | | | 50 | Ps | | 45 | | | 40 | <20 | | <20 | | 65 | | | 125 | | | 90 | | | | Lw | | 29 | | | 24 | <15 | | <15 | | 26 | | | 31 | | | 25 | | | 100 | Ps | | | 55 | | | 55 | | 35 | <20 | | 22 | | | 20 | | | | | | Lw | | | 34 | | | 28 | | 20 | <15 | | <15 | | | <15 | | | | | 200 | Ps | | | | | | | | | 70 | | 110 | 44 | | 75 | 45 | | 37 | | | Lw | | | | | | | | | 34 | | 39 | 28 | | 34 | 29 | | 23 | | 300 | Ps | | | | | | | | | | | | 90 | | | 105 | | 85 | 23 | | Lw | | | | | | | | | | | | 39 | | | 40 | | 35 | 15 | 400 | Ps | | | | | | | | | | | | | | | | | | 40 | Lw | | | | | | | | | | | | | | | | | | 27 |
Symbols and specifications
- Qv = Air volume in m³/h
- Ps = Static pressure loss in Pa
- Lw = Acoustic power in dB(A), based upon measured Lp acoustic pressures increased by 4 dB(A) room attenuation
- r = Gap between the central core and the valve body
Selection Graph
Symbols
- Qv = Air volume in l/s
- Pt = Total pressure loss in Pa
- Lp10A = Acoustic pressure in dB(A) with 4dB room attenuation (10m²sab)
- r = Gap between the central core and the valve body
Correction factor Koct (dB)
|
|
| 80 | 1 | -2 | 1 | 0 | -3 | -10 | -22 | | 100 | 5 | -2 | -3 | -3 | 0 | -8 | -20 | | 125 | -6 | 0 | 0 | -3 | 0 | -13 | -25 | | 150 | -6 | -5 | -4 | 0 | -1 | -13 | -28 | | 160 | 1 | -1 | -3 | 1 | -2 | -15 | -32 | | 200 | 3 | 1 | -1 | 1 | -4 | -12 | -25 | | Tol.± | 3 | 2 | 2 | 2 | 2 | 2 | 3 |
Symbols and specifications
- To Obtain the sound power level Lw octave by octave band the value Koct need to be added to the graph value Lp10A acoording the formula = Lw oct =Lp10A + Koct
- The correction factors Koct given are the average values over the range of DVS
- f [Hz] = Octave band in Hertz
- Koct = Correction factor in dB per octave band
Sound attenuation DL
|
|
| 100 | -10 | 23 | 19 | 14 | 12 | 11 | 10 | 13 | 14 | | 0 | 23 | 16 | 11 | 8 | 7 | 6 | 9 | 8 | | 10 | 23 | 16 | 11 | 7 | 5 | 4 | 7 | 8 | | 125 | -17 | 20 | 19 | 13 | 10 | 7 | 7 | 11 | 14 | | 0 | 18 | 16 | 10 | 6 | 4 | 4 | 5 | 8 | | 9 | 19 | 16 | 9 | 6 | 3 | 3 | 5 | 7 | | 150 | -15 | 21 | 14 | 11 | 8 | 6 | 6 | 8 | 8 | | 0 | 20 | 13 | 9 | 6 | 4 | 4 | 7 | 6 | | 10 | 16 | 14 | 9 | 4 | 3 | 2 | 7 | 7 | | 160 | -15 | 18 | 13 | 11 | 7 | 6 | 6 | 8 | 8 | | -10 | 18 | 13 | 10 | 6 | 5 | 5 | 7 | 7 | | 0 | 17 | 13 | 9 | 5 | 4 | 3 | 6 | 6 | | 200 | -15 | 17 | 12 | 8 | 7 | 6 | 7 | 8 | 9 | | -5 | 17 | 11 | 7 | 6 | 5 | 6 | 6 | 8 | | 0 | 17 | 11 | 7 | 5 | 5 | 6 | 6 | 7 | | Tol.± | 6 | 3 | 2 | 2 | 2 | 2 | 2 | 2 | 3 |
Symbols and specifications
- The above table shows the attenuation DL from duct to room, including end reflection of a flexible connection by ceiling installation.
- r = setting of the central cone in mm
Dimensions
|
| DVS 100 | 99 | 125 | 45 | 137 | 28 | | DVS 125 | 124 | 150 | 45 | 164 | 29 | | DVS 150 | 149 | 175 | 45 | 202 | 30 | | DVS 160 | 159 | 185 | 45 | 212 | 31 | | DVS 200 | 199 | 225 | 45 | 248 | 33 |
|
