Flowserve LNGT User Manual
Page 10
Typical sound pressure level, dBA, L
pA
at 1 m reference 20 μPa [L
wA
sound power 1 pW where L
pA
>85 dBA]
3550 r/min
2900 r/min
1750 r/min
1450 r/min
Motor size
and speed
kW [hp]
Pump and
motor
dB[A]
Pump
only
dB[A]
Pump and
motor
dB[A]
Pump
only
dB[A]
Pump and
motor
dB[A]
Pump
only
dB[A]
Pump and
motor
dB[A]
Pump
only
dB[A]
<0.55 [<0.75]
71 [88] 66
[83] 64
[81] 62
[79] 64
[81] 62
[79] 63
[80] 62
[79]
0.75 [1]
74 [91] 66
[83] 67
[84] 62
[79] 67
[84] 62
[79] 63
[80] 62
[79]
1.1 [1.5]
74 [91] 68
[85] 67
[84] 64
[81] 67
[84] 64
[81] 65
[82] 64
[81]
1.5 [2]
77 [94] 70
[87] 70
[87] 66
[83] 70
[87] 66
[83] 66
[83] 66
[83]
2.2 [3]
78 [95] 72
[89] 71
[88] 68
[85] 71
[88] 68
[85] 68
[85] 68
[85]
3 [4]
81 [98] 74
[91] 74
[91] 70
[87] 74
[91] 70
[87] 70
[87] 70
[87]
4 [5]
82 [99] 75
[92] 75
[92] 71
[88] 75
[92] 71
[88] 71
[88] 71
[88]
5.5 [7.5]
90 [107] 77
[94] 83
[100] 73
[90] 76
[93] 73
[90] 72
[89] 71
[88]
7.5 [10]
90 [107] 78
[95] 83
[100] 74
[91] 77
[94] 74
[91] 73
[90] 72
[89]
11 [15]
91 [108] 80
[97] 84
[101] 76
[93] 78
[95] 76
[93] 74
[91] 73
[90]
15 [20]
92 [109] 83
[100] 85
[102] 79
[96] 80
[97] 79
[96] 76
[93] 75
[92]
18.5 [25]
92 [109] 83
[100] 85
[102] 79
[96] 80
[97] 79
[96] 76
[93] 75
[92]
22 [30]
92 [109] 83
[100] 85
[102] 79
[96] 81
[98] 79
[96] 77
[94] 75
[92]
30 [40]
100 [117] 85
[102] 93
[110] 81
[98] 84
[101] 80
[97] 80
[97] 76
[93]
37 [50]
100 [117] 86
[103] 93
[110] 82
[99] 84
[101] 80
[97] 80
[97] 76
[93]
45 [60]
100 [117] 87
[104] 93
[110] 83
[100] 84
[101] 80
[97] 80
[97] 76
[93]
55 [75]
100 [117] 88
[105] 95
[112] 84
[101] 86
[103] 81
[98] 82
[99] 77
[94]
75 [100]
100 [117] 90
[107] 95
[112] 86
[103] 88
[105] 81
[98] 83
[100] 78
[95]
90 [120]
100 [117] 90
[107] 95
[112] 86
[103] 90
[107] 81
[98] 85
[102] 78
[95]
110 [150]
100 [117] 91
[108] 95
[112] 87
[104] 91
[108] 83
[100] 86
[103] 79
[96]
150 [200]
101 [118] 92
[109] 96
[113] 88
[105] 91
[108] 83
[100] 86
[103] 79
[96]
200 [270]
[1]
[1]
[1]
[1]
[1]
83 [100]
[1]
80 [97]
300 [400]
-
-
-
-
[1]
84 [101]
[1]
81 [98]
500 [670]
-
-
-
-
[1]
85 [102]
[1]
83 [100]
1000 [1300]
-
-
-
-
[1]
86 [103]
[1]
86 [103]
1500 [2000]
-
-
-
-
[1]
90 [107]
[1]
88 [105]
[1] Motors in this range are generally job specific and noise levels should be calculated based on actual
equipment installed. For 960 r/min reduce 1450 r/min values by 5 dBA