English (GB)
19
6.4 Approximate values when using pulsation
dampers
The table below indicates the approximate values and the suction
line length for which suction pulsation dampers are required. The
values apply to 50 Hz operation when water or similar liquids are
dosed.
Caution
Risk of damage to the system!
It is always recommended to use pulsation dampers
for large high-speed pumps!
In particular for pump types with a flow rate above
1000 l/h (DMH 257), suction and discharge pulsation
dampers should be used directly at the pump suction
and discharge ports of the pump. The size of the
suction and discharge lines should be adjusted
accordingly.
Since the pulsation is influenced by many factors, a
system-specific calculation is essential. Request a
calculation from our calculation program.
Pump type
Stroke rate
[n/min]
Nominal
width of
suction line
Maximum
length of
suction line
[m]
DMH 251
DMH 2.4-10
14
DN 8
8
DMH 5-10
29
DN 8
8
DMH 13-10
63
DN 8
3
DMH 19-10
96
DN 8
1.5
DMH 24-10
120
DN 8
1
DMH 2.3-16
14
DN 8
8
DMH 4.9-16
29
DN 8
8
DMH 12-16
63
DN 8
3
DMH 18-16
96
DN 8
1.5
DMH 23-16
120
DN 8
1
DMH 2.2-25
14
DN 8
8
DMH 4.5-25
29
DN 8
8
DMH 11-25
63
DN 8
3
DMH 17-25
96
DN 8
1.5
DMH 21-25
120
DN 8
1
DMH 252
DMH 11-10
29
DN 8
8
DMH 24-10
63
DN 8
2
DMH 37-10
96
DN 8
1
DMH 46-10
120
DN 8
1
DMH 10-16
29
DN 8
8
DMH 23-16
63
DN 8
2
DMH 36-16
96
DN 8
1
DMH 45-16
120
DN 8
1
DMH 54-16
144
DN 8
1
DMH 253
DMH 21-10
29
DN 20
8
DMH 43-10
63
DN 20
8
DMH 67-10
96
DN 20
6
DMH 83-10
120
DN 20
4
DMH 100-10
144
DN 20
3
DMH 254
DMH 50-10
26
DN 20
8
DMH 102-10
54
DN 20
8
DMH 143-10
75
DN 20
5
DMH 175-10
92
DN 20
3
DMH 213-10
112
DN 20
1.5
DMH 291-10
153
DN 20
1
DMH 46-16
26
DN 20
8
DMH 97-16
54
DN 20
8
DMH 136-16
75
DN 20
5
DMH 166-16
92
DN 20
3
DMH 202-16
112
DN 20
1.5
DMH 276-16
153
DN 20
1
DMH 255
DMH 194-10
54
DN 20
5
DMH 270-10
75
DN 20
3
DMH 332-10
92
DN 20
1.5
DMH 403-10
112
DN 20
1
DMH 550-10
153
DN 20
1.5
DMH 257
DMH 220-10
28
DN 32
4.5
DMH 440-10
56
DN 32
4.5
DMH 575-10
73
DN 32
3
DMH 750-4
73
DN 32
1.5
DMH 770-10
98
DN 32
1.5
DMH 880-10
112
DN 32
1
DMH 1150-10
146
DN 32
0.5
DMH 1500-4
146
DN 32
0.5
Pump type
Stroke rate
[n/min]
Nominal
width of
suction line
Maximum
length of
suction line
[m]