Fs4000-St4 / Sr4 Flowrates - ABB FV4000 Operating Instruction

Specifications
A

12.6 FS4000-ST4 / SR4 flowrates

12.6.1 Fluid flowrates
DN
15 1/2"
20 3/4"
25 1"
32 1 1/4"
40 1 1/2"
50 2"
80 3"
100 4"
150 6"
200 8"
300 12"
400 16"
The flowrates apply for fluids at 20 °C (68 °F), 1,013 mbar (14.69 psi), ν = 1 cSt, ρ = 998 kg/m 3 (62.30 lb/ft 3 ).
12.6.2 Gas/Steam flowrates
DN
15 1/2"
20 3/4"
25
32 1 1/4"
40 1 1/2"
50
80
100
150
200
300
400
The flowrates apply for gas/steam at ρ = 1.2 kg/m 3 (0.075 lb/ft 3 ).
Change from one to two columns
12.7 Static overpressure in the case of fluids
To avoid cavitation, a static overpressure is required downstream of
the flowmeter (downstream pressure). This can be estimated using
the following formula:
'
≥ × + × Δ
p 1 , 3 p 2 , 6 p
2 Dampf
p = Static overpressure downstream of the flowmeter (mbar)
2
p = Steam pressure of fluid at operating temperature (mbar)
Dampf
p '
Δ =
Pressure drop, medium (mbar)
110
Re min
2100
3500
5200
7600
13500
17300
15000
17500
43000
44000
115000
160000
Q V min
(m 3 /h)
2.5
5
1" 5
8
12
2" 18
3" 60
4" 65
6" 150
8" 200
12" 530
16" 1050
Q v maxDN (m 3 /h) Q v maxDN (US gal/min)
1,6
2
6
10
16
25
100
150
370
500
1000
1800
Q V maxDN Q V min
(m 3 /h) (ft 3 /min)
16
25
50
130
200
350
850
1500
3600
4900
10000
20000
12.8 Overload capability
Gases
15 % above maximum flow
Fluids
15 % above maximum flow (no cavitation permitted!)
FV4000 / FS4000
7,0
8,8
26
44
70
110
440
660
1620
2200
4400
7920
Q V maxDN
(ft 3 /min)
1.4 9.4
2.9 14
2.9 29
4.7 76
7.0 117
10 206
35 500
38 882
88 2110
117 2880
311 5880
618 11770
Frequency (Hz) at
Q v maxDN
185
100
135
107
110
90
78
77
50
30
16
13
Frequency (Hz)
at Q V maxDN
1900
1200
1200
1300
1400
1200
690
700
470
320
160
150
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