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Constant Airflow Regulator MR
MR Mono Standard
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
25 21 21 15 14
20
25 22 22 16 15
25
25 23 23 17 15 10
30
25 24 23 18 16 10
35
25 25 24 18 17 11
40
25 25 24 19 18 11
45
25 26 25 20 18 12
50
25 27 26 21 19 12
60
25 29 27 23 20 13
Ø100
Airflow
50 Pa
(m
3
/h)
15
30 27 25 19 15
20
29 27 25 19 15
25
28 27 25 19 16
30
27 27 25 19 16
35
26 27 25 20 16
40
25 27 25 20 17
50
22 27 26 20 18
55
23 27 26 20 17
60
22 27 26 20 18
65
23 28 26 21 19 10
70
25 28 26 21 19 10
75
26 29 26 22 20 11 10 28 30 36 35 31 33 28 20 38 34 40 40 37 38 35 27 44 37 43 44 42 43 41 34 49
85
29 30 27 23 22 13 13 30 32 38 35 32 33 29 20 39 36 42 40 37 39 35 27 44 39 46 45 42 44 41 34 49
90
31 30 27 24 22 13 14 30 33 39 36 32 34 29 19 40 37 43 41 37 39 36 27 45 40 47 45 42 44 41 34 50
Ø 125
Airflow
50 Pa
(m
3
/h)
15
24 30 27 20 15
25
25 30 28 21 16
30
25 30 28 21 16
45
26 31 28 23 17
50
27 31 28 23 18 10 14 29 29 34 35 34 32 23 19 38 31 35 38 37 36 31 26 42 33 37 41 40 40 38 33 46
60
28 31 28 24 19 11 14 30 30 34 35 34 33 23 19 39 32 36 38 37 36 32 25 42 34 38 41 40 40 39 32 46
65
29 31 28 25 19 11 14 30 30 34 34 34 33 23 19 39 32 36 38 37 37 32 25 42 34 39 41 40 40 39 31 46
70
29 31 28 25 20 12 14 30 31 34 34 34 33 23 18 39 33 37 38 37 37 32 25 42 35 39 41 40 41 40 31 47
75
30 31 28 26 20 12 14 30 31 34 34 34 34 23 18 39 33 37 38 37 37 32 24 43 35 39 41 40 41 40 31 47
80
31 31 28 26 20 13 14 31 31 34 34 34 34 23 18 39 33 37 38 37 37 32 24 43 35 40 41 41 42 41 30 47
85
31 31 28 26 21 13 15 31 32 34 34 34 34 23 18 39 34 37 38 37 38 33 24 43 36 40 41 41 43 41 30 48
90
32 31 29 27 21 14 15 31 32 34 34 34 35 23 17 39 34 38 38 38 38 33 23 43 36 41 41 41 43 42 29 48
95
32 32 29 28 22 14 15 32 32 34 34 34 35 23 17 40 35 38 38 38 38 33 23 43 37 41 41 41 44 42 29 49
4
Differiencial Pressure DP (Pa)
100 Pa
23 25 30 30 27 28 23 19 34 25 32 34 34 34 31 25 40 26 34 38 40 40 37 31 45
9
6
24 26 31 31 28 28 24 19 34 26 34 35 34 35 31 26 40 27 36 38 40 40 38 32 46
9
6
7
24 26 32 31 28 29 24 19 35 27 35 35 34 35 32 26 41 28 37 39 40 41 38 33 46
7
25 27 32 32 29 29 25 19 36 28 36 36 35 36 32 27 41 29 39 40 40 41 38 33 46
7
25 27 33 32 29 30 25 20 36 28 37 37 35 36 32 27 42 30 41 40 40 42 39 34 47
8
26 28 34 33 30 30 26 20 36 29 38 37 35 37 33 28 42 31 42 41 40 42 39 35 47
8
27 28 35 33 30 31 26 20 37 30 39 38 36 37 33 28 43 32 44 42 40 43 39 36 48
27 29 35 33 31 32 27 20 37 31 41 38 36 38 34 29 43 33 45 43 40 43 40 36 48
8
29 30 37 34 32 33 28 21 39 33 43 40 36 39 35 30 44 36 49 44 41 44 41 38 49
9
Differiencial Pressure DP (Pa)
100 Pa
26 29 28 31 30 28 22 20 35 29 32 34 36 37 33 32 42 31 36 37 41 45 44 45 51
7
7
7
7
26 29 28 31 30 28 23 20 35 29 33 34 36 37 33 32 42 31 37 38 41 45 43 44 50
8
7
26 28 29 32 30 28 23 20 35 29 33 35 36 37 33 31 42 32 37 38 41 45 43 43 50
8
7
27 28 30 32 30 29 24 20 35 30 34 35 36 37 33 31 42 32 37 39 41 44 42 41 49
8
7
27 28 30 32 30 29 24 20 36 30 34 36 36 37 33 30 42 32 38 39 41 44 42 40 49
8
7
27 28 31 33 30 30 25 20 36 30 35 36 36 37 33 30 42 33 38 40 41 44 41 39 49
27 28 33 34 30 31 26 21 37 31 36 38 36 37 34 28 43 34 40 42 41 43 41 35 48
9
7
27 28 32 33 30 31 26 20 37 31 36 37 36 37 34 29 43 34 39 41 41 43 41 36 48
9
7
9
7
27 28 34 34 30 32 27 21 38 31 37 39 36 37 34 28 43 34 40 43 41 43 41 34 48
8
28 29 34 34 31 32 27 21 38 32 38 39 36 38 34 28 43 35 41 43 42 43 41 34 48
9
28 29 35 35 31 32 27 20 38 33 39 39 37 38 35 27 43 36 42 43 42 43 41 34 49
Differiencial Pressure DP (Pa)
100 Pa
6
13 28 27 33 36 33 31 24 21 38 29 34 38 37 35 30 29 42 31 34 40 40 39 36 36 46
7
14 28 28 33 35 33 31 24 21 38 30 34 38 37 35 30 28 42 31 35 40 40 39 37 35 46
14 28 28 33 35 33 31 24 21 38 30 34 38 37 35 31 28 42 32 35 40 40 39 37 34 46
8
14 29 29 33 35 33 32 23 20 38 31 35 38 37 36 31 27 42 33 37 41 40 39 38 33 46
9
150 Pa
150 Pa
150 Pa
200 Pa
200 Pa
200 Pa