MVA 02 rev 5 - December 2017
41 of 120
ACOUSTIC PRESSURE* EMITTED Lp(A) (dBA)
(2/2)
Axial fans
– series with steel impeller hub
size
ES/H
1
EF/H
1
EF/H
vers.9-
12
EB/H
EFR/P
2
560
101
630
104
710
107
800
95
900
96
96
96
99
98
1000
98
98
97
100
101
1120
99
99
97
100
104
1250
100
100
98
101
107
1400
101
101
98
101
109
1600
102
102
99
102
104
1800
104
104
99
102
2000
105
100
* Uncer 3 dB
Chart 3-6 Acoustic pressure emitted Lp(A) (dBA)
1
ducted only on exit
2
ducted only on exit and at maximum synchronism speed
3
ducted only on intake and at maximum synchronism speed
