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H
H-17
NOISE CONTROL PRODUCTS
© FANTECH
2016
POWERLINE
®
SERIES RECTANGULAR DUCT ATTENUATORS
DESCRIPTION
Matching attenuators designed to attach directly to the inlet
and outlet of all PowerLine PCD/PCE series fans and selected
Multiflow MMD/MME series fans.
Construction
Each PowerLine Attenuator is provided with a spacer duct to
set the attenuator at an optimum distance from the fan. The
attenuators are constructed with perforated metal and acoustic
insulation internally similar to the RT series of rectangular
attenuators. Custom lengths and open areas are chosen to
suit the characteristics of the fans this product is designed to
accompany.
HOW TO ORDER
B
A int) (
Spacer Duct as supplied - must be fitted
between fan inlet or outlet and attenuator
Airflow
C
D
Model No.
POW..SIL A
C B
D
Spacer
wt. kg
Attenuator
wt. kg
31
400
400
425
600
8
20
35
450
400
475
900
9
32
40
500
400
525
900
10
53
45
550
400
575
900
11
56
50
650
600
675
1200
20
77
56
725
600
750
1200
22
89
63
800
600
825
1500
24
115
71
900
600
925
1500
27
152
80
1000
600
1025
1800
30
201
Dimensions, mm
DIMENSIONS
Model No.
POW...
PowerLine
Series Fan
PCD/E..
(Pg. B-34/36)
Multiflow
Series Fan
MMD/E..
(Pg. B-42/46)
Approximate
dB(A)
reduction *
31SIL
PCD/E31… MMD/E31.
6-8
35SIL
PCD/E35… MMD/E35.
9-10
40SIL
PCD/E40… MMD/E40.
11-15
45SIL
PCD/E45… MMD/E45.
10-15
50SIL
PCD/E50… MMD/E50.
10-15
56SIL
PCD/E56… MMD/E56.
13-18
63SIL
PCD/E63… MMD/E63.
13-18
71SIL
PCD/E71… -
11-12
80SIL
-
MMD/E80.
15-17
SELECTION TABLE
*Approximate dB(A) reduction is for guidance only and depends
largely on the noise profile of the attached fan. If exact noise
spectrums are required, please contact your local sales office to
obtain reductions for the model required.
SUGGESTED SPECIFICATIONS
Matching rectangular attenuator assemblies shall be of the
POW Series as designed and manufactured by Fantech Pty.
Ltd. and shall have the dimensions, acoustic attenuator
insertion losses and pressure losses as scheduled. The
attenuators shall be approved for use when directly mounted to
a Fantech In-Line Centrifugal or In-Line Mixed Flow fan.
0.1
1
4
6
10
100
60
20
40
2
0.2 0.4 0.6 1.0 2 4 6 10
POW31SIL / POW40SIL
POW35SIL / POW45SIL
POW50SIL
POW80SIL
POW63SIL / POW56SIL
POW71SIL
Volume Flow, m /s
3
Pressure Loss, Pa
PRESSURE DROP GRAPH