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Constant Airflow Regulator MR
MR Modulo
ACOUSTIC FEATURES
Sound power levels of noise (Lw) at duct output:
The following tables give the sound power levels of noise (Lw) expressed in decibels per octave (dB/oct) as well as the global sound power levels
in dB(A) according to the pressure drop.
These sound power levels are results of tests carried out by a Dutch independent laboratory (PEUTZ) and are given at the duct outlet.
Measures were carried out in accordance with NF EN ISO 3741 and NF EN ISO 5135 norms, with a CAR fitted into a duct with an upstream and
downstream straight length equal to 3 diameters.
Ø 80
Airflow
50 Pa
(m
3
/h)
15
19 25 24 18 21
20
19 25 24 19 21
25
20 25 24 19 21
30
20 25 24 20 21
35
20 25 24 20 21
40
20 26 24 21 21
45
20 26 24 21 21 10
50
21 26 24 21 21 10
60
21 26 25 22 21 12 10 28 29 34 34 31 33 29 21 39 33 40 38 36 39 36 32 44 37 45 42 41 44 43 41 50
Ø 100
Airflow
50 Pa
(m
3
/h)
15
20 26 22 14 15
20
21 27 22 15 14
25
22 27 23 16 14
30
23 27 24 17 14
35
23 28 24 18 15
45
24 28 25 19 15
50
27 30 28 21 15
55
26 29 27 20 15
60
28 31 28 22 15
65
27 30 27 22 16
70
26 29 27 22 16
75
26 28 26 21 17
80
24 27 24 21 18
90
23 26 24 20 18 10 14 27 31 37 34 32 34 26 18 39 34 42 39 37 40 35 27 45 37 47 44 42 47 42 35 51
Ø 125
Airflow
50 Pa
(m
3
/h)
15
32 23 22 19 16
25
32 25 23 20 17
30
32 26 24 21 17
45
33 29 26 22 19
50
33 30 27 23 19
60
34 32 28 24 20 11 15 30 36 38 38 34 32 24 17 40 38 42 43 40 38 32 24 46 39 45 49 46 43 38 30 51
65
34 33 29 24 20 12 16 31 37 39 39 35 32 25 17 40 39 43 45 41 38 32 24 46 40 46 50 48 44 38 30 52
70
34 34 30 25 21 13 18 32 38 40 40 35 32 26 18 41 39 44 46 42 39 33 24 47 41 48 52 49 45 38 30 53
75
34 35 31 25 21 14 19 32 39 42 41 36 32 27 18 42 40 46 47 44 39 33 24 48 42 49 53 50 46 39 29 54
80
35 36 31 26 22 14 20 33 39 43 43 37 32 29 18 43 41 47 49 45 39 34 24 49 42 51 55 52 47 39 29 56
85
35 37 32 27 22 15 22 34 40 44 44 37 32 30 19 44 42 48 50 46 40 34 24 50 43 52 56 53 48 39 29 57
90
35 38 33 27 23 16 23 35 41 45 45 38 32 31 19 45 42 49 51 47 40 35 24 51 44 54 58 54 48 39 29 59
95
36 39 34 28 23 17 25 36 42 46 46 39 33 32 19 46 43 51 53 48 40 36 24 53 45 55 60 56 49 39 28 60
6
Differiencial Pressure DP (Pa)
100 Pa
26 19 29 30 28 32 22 18 36 25 35 36 36 43 34 22 45 31 40 42 43 53 48 26 56
7
6
26 20 30 31 29 32 23 18 36 26 35 36 36 42 34 23 45 31 41 42 43 52 47 27 55
8
7
8
7
27 21 30 31 29 32 23 19 36 27 36 37 36 42 34 24 45 32 41 42 43 51 46 29 54
8
8
27 22 31 31 29 32 24 19 37 28 37 37 36 42 34 25 45 33 42 42 42 50 45 31 53
9
8
27 23 32 32 30 33 25 19 37 29 37 37 36 41 35 26 44 33 42 42 42 49 45 33 52
9
8
27 24 32 32 30 33 25 20 37 30 38 37 36 41 35 27 44 34 43 42 42 48 44 34 51
9
27 26 33 32 30 33 26 20 37 30 38 37 36 40 35 28 44 35 44 42 42 47 44 36 51
27 27 33 33 31 33 27 20 38 31 39 38 36 40 35 30 44 36 44 42 41 46 43 38 50
9
Differiencial Pressure DP (Pa)
100 Pa
8
3
23 24 32 31 29 25 18 17 34 31 32 35 34 34 31 29 40 38 32 38 38 43 43 40 48
24 25 32 32 30 25 19 17 34 31 33 35 34 34 31 28 40 37 33 39 39 42 42 39 48
8
4
24 25 33 33 30 26 19 17 35 31 34 36 35 34 31 28 41 36 34 39 40 42 42 38 48
8
6
8
7
25 26 33 33 31 27 20 17 35 31 35 37 36 35 31 27 41 35 36 40 41 42 41 37 48
8
8
25 27 34 34 31 27 21 17 36 31 35 38 37 35 31 27 42 34 37 41 41 42 41 36 48
7
9
26 27 34 35 32 28 21 17 37 31 36 39 37 35 31 26 42 34 38 42 42 42 40 35 48
7
13 28 29 36 37 34 30 23 17 39 31 39 41 40 36 31 25 44 32 42 45 45 42 39 32 49
11 27 29 35 36 34 29 22 17 38 31 38 40 39 36 31 25 43 32 40 44 44 42 40 33 49
7
14 29 30 36 38 35 30 24 18 40 31 40 42 41 37 32 24 45 31 43 46 46 42 39 31 50
7
7
14 29 30 36 37 34 31 24 18 39 31 40 42 40 37 32 25 44 32 43 46 45 43 39 32 50
8
14 28 30 36 37 34 31 24 18 39 32 40 41 39 38 33 25 44 33 44 45 44 43 40 32 49
8
14 28 30 36 36 33 32 25 18 39 32 41 41 39 38 33 26 44 34 45 45 44 44 41 33 50
9
14 27 30 37 35 32 33 26 18 38 33 42 40 38 40 34 27 45 36 46 44 42 46 42 35 50
Differiencial Pressure DP (Pa)
100 Pa
24 29 29 28 28 33 15 15 36 31 31 32 31 36 26 24 39 33 32 35 34 47 37 32 49
4
2
5
5
26 31 31 30 29 33 17 15 36 33 33 34 33 36 28 24 40 35 35 38 37 45 37 32 47
6
6
26 32 32 31 30 32 18 15 37 34 34 36 34 36 28 24 41 35 36 39 38 43 37 32 47
8
10 28 34 35 35 32 32 21 16 38 36 38 39 37 37 30 24 43 37 41 44 42 42 37 31 48
9
12 29 35 36 36 33 32 22 17 38 36 39 41 38 37 30 24 44 38 42 45 44 42 38 31 49
150 Pa
150 Pa
150 Pa
200 Pa
200 Pa
200 Pa