KROHNE OPTISWIRL 4070 EN - Manual (Page 81)

TECHNICAL DATA
8
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OPTISWIRL 4070
www.krohne.com 02/2013 - 4000150606 MA OPTISWIRL4070C R07 en
8.4 Flow tables
Measuring ranges
Flow rate limits
Size Q
min
Q
max
Q
min
Q
max
DN - EN 1092-1 NPS - ASME B16.5 [m 3/ h] [gph]
Water
15 ½ 0.45 5.0 119 1321
25 1 0.81 11.40 214 3012
40 1½ 2.04 28.57 539 7547
50 2 3.53 49.47 933 13069
80 3 7.74 108.37 2045 28629
100 4 13.30 186.21 3514 49192
150 6 30.13 421.86 7960 111445
200 8 52.66 792.42 13911 209335
250 10 90.5 1266.8 23908 334653
300 12 113.41 1839.8 29960 486024
Values based on water at 20°C / 68°F
Air
15 ½ 6.79 32.56 1794 8602
25 1 10.20 114.0 2695 30116
40 1½ 25.35 326.63 6697 86287
50 2 43.89 565.49 11595 149388
80 3 96.14 1238.60 25398 327207
100 4 165.19 2128.27 43639 562236
150 6 374.23 4821.57 98862 1273738
200 8 702.95 9056.8 185700 2392553
250 10 1123.7 14478 29685 3824683
300 12 1632.1 21028 431155 55550104
Values based on air at 20°C / 68°F and 1.013 bar abs / 14.891 psig
Product Nominal sizes Minimum flow rates Maximum flow rates
EN ASME [m/s] [ft/s] [m/s] [ft/s]
Liquids DN15…300 ½… 12" 0.5x(998/ρ) 0.5 1
1.64x(998/ρ)0.5 2 7x(998/ρ) 0.47 1
23x(998/ρ)0.47 2
Gas, steam DN15…300 ½… 12" 6x(1.29/ρ) 0.5
3
16.4x(1.29/ρ)0.5
4
7x(998/ρ) 0.47
3
23x(998/ρ)0.47 4
ρ = operating density [kg/m 3 ]
1 Minimum flow rate 0.3 m/s - maximum flow rate 7 m/s
2 Minimum flow rate 0.984 ft/s - maximum flow rate 23 ft/s
3 Minimum flow rate 2 m/s - maximum flow rate 80 m/s; DN15 up to 45 m/s and DN25 up to 70 m/s
4 Minimum flow rate 6.6 ft/s - maximum flow rate 262 ft/s; DN15 up to 148 ft/s and DN25 up to 230 ft/s
MA_OPTISWIRL4070C_R07_en_150606_PRT.book Page 81 Wednesday, February 13, 2013 2:47 PM