ABB FS4000, Operating Instruction

Page: 110 / 126

Specifications
110 FV4000 / FS4000 D184B097U02
A
12.6 FS4000-ST4 / SR4 flowrates
12.6.1 Fluid flowrates
DN Re min
QvmaxDN (m
3/h) QvmaxDN (US gal/min) Frequency (Hz) at
QvmaxDN
15 1/2“ 2100 1,6 7,0 185
20 3/4“ 3500 2 8,8 100
25 1“ 5200 6 26 135
32 1 1/4“ 7600 10 44 107
40 1 1/2“ 13500 16 70 110
50 2“ 17300 25 110 90
80 3“ 15000 100 440 78
100 4“ 17500 150 660 77
150 6“ 43000 370 1620 50
200 8“ 44000 500 2200 30
300 12“ 115000 1000 4400 16
400 16“ 160000 1800 7920 13
The flowrates apply for fluids at 20 °C (68 °F), 1,013 mbar (14.69 psi),
ν
= 1 cSt,
ρ
= 998 kg/m3 (62.30 lb/ft3).
12.6.2 Gas/Steam flowrates
DN QVmin
(m3/h)
QVmaxDN
(m3/h)
QVmin
(ft3/min)
QVmaxDN
(ft3/min)
Frequency (Hz)
at QVmaxDN
15 1/2“ 2.5 16 1.4 9.4 1900
20 3/4“ 5 25 2.9 14 1200
25 1“ 5 50 2.9 29
1200
32 1 1/4“ 8 130 4.7 76 1300
40 1 1/2“ 12 200 7.0 117 1400
50 2“ 18 350 10 206 1200
80 3“ 60 850 35 500 690
100 4“ 65 1500 38 882 700
150 6“ 150
3600 88 2110 470
200 8“ 200 4900 117 2880 320
300 12“ 530
10000 311 5880 160
400 16“ 1050 20000 618 11770 150
The flowrates apply for gas/steam at
ρ = 1.2 kg/m3 (0.075 lb/ft3).
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:
p , p , p
Dampf
′ Δ × + × ≥
6 2 3 1
2
2
p = Static overpressure downstream of the flowmeter (mbar)
Dampf
p = Steam pressure of fluid at operating temperature (mbar)
p
′
Δ
= Pressure drop, medium (mbar)
12.8 Overload capability
Gases
15 % above maximum flow
Fluids
15 % above maximum flow (no cavitation permitted!)