MAN B&W L28/32H, Manual

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L28/32H
E 16 04 5 Silencer with Spark Arrestor, Damping 25 dB (A)
1609582-1.3
Page 1 (1)
99.40
Dimension for flanges for exhaust pipes is according to DIN 86044
Design
The operating of the silencer is based on the absorp-
tion system. The Gasflow passes straight-through a
perforated tube, surrounded by highly effecient sound
absorbing material, thus giving an excellent attenua-
tion over a wide frequency range.
The operation of the spark arrestor is based on the
centrifugal system. The gases are forced into a rotary
movement by means of a number of fixed blades. The
solid particles in the gases are thrown against the wall
of the spark arrestor and collected in the soot box.
(Pressure loss, see graphic).
The silencer is delivered without insulation and fas-
tening fittings.
Cyl.
type
Weight
kg
L K J H G F E D C B
A
(DN)
400
450
500
550
150
150
150
150
780
830
930
1030
25
25
25
25
Silencer type (B)
5
6
7-8
9
Silencer type (A)
Weight
kg
K J H G F E D C
A
(DN)
B
Cyl.
type
Damping
dB (A)
Damping
dB (A)
M
O
P
O M P
400
450
500
550
938
1084
1084
1184
2965
3465
3465
3765
3185
3685
3685
4005
110
110
110
120
958
1104
1104
1204
540
595
645
703
495
550
600
650
16
16
16
20
16
16
20
20
22
22
22
22
5
6
7-8
9
25
25
25
25
750
800
900
1000
3100
3100
3300
3500
3400
3400
3600
3800
540
595
645
703
495
550
600
650
16
16
16
20
16
16
20
20
22
22
22
22
350
350
390
450
L
290
300
310
350
600
850
900
950
100
100
100
100
300
350
350
350
700
800
900
1000
700
950
1000
1200
470
526
643
883
600
800
300
200
150
100
80
60
50
40
30
20
10
400
1000
10 15 20 30 40 60 80100
Gas velocity (m/s)
Pressure loss (mm w ~ 10 Pa) at T300° C.
Installation
The silencer/spark arrestor has to be installed as
close to the end of the exhaust pipe as possible.
K number of holes
B
Spark arrestor
type (a) Spark arrestor
type (b)
øL
H G A F
J
E E C
D
M P P M O