KROHNE H250 M40 EN - Manual (Page 76)

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TECHNICAL DATA
76
H250 M40
www.krohne.com 11/2012 - 4000640702 MA H250 M40 R02 en
H250H - Horizontal installation position
Reference condition for gas measurements: Reference condition for gas measurements: Reference condition for gas measurements: Reference condition for gas measurements:
Flow measurements for gases are attributed to
SCFM or SCFH: Volume current in standard state 15°C - 1.013 bar abs. (ISO 13443)
Measuring span: 10 : 1
Flow values: Values = 100% Water 20°C / 68°F Air: 20°C [68°F], 1,013 bar abs. [14,7 psia]
EN ASME Cone Wasser [GPH] Luft [SCFM] Pressure loss
[psig]
DN15 1/2" K 15.1 18.5 1.12 2.87
K 15.2 31.7 1.86 3.00
K 15.3 47.6 2.79 2.87
K 15.4 74.0 4.65 3.31
K 15.5 119 7.44 3.68
K 15.6 185 11.2 4.78
K 15.7 317 18.6 8.68
K 15.8 423 24.8 14.0
K 15.8 634 37.2 23.5
DN25 1" K 25.1 343 21.7 1.79
K 25.2 528 31.0 1.54
K 25.3 793 49.6 1.71
K 25.4 1321 80.6 2.13
K 25.5 2245 136 3.19
K 25.5 2642 161 4.94
DN50 2" K 55.1 2642 161 3.53
K 55.2 4227 260 3.38
K 55.3 5812 360 3.23
K 55.3 8982 558 6.17
DN80 3" K 85.1 6604 403 1.91
K 85.2 9246 589 1.91
K 85.2 15851 992 4.26
DN100 4" K 105.1 21134 1364 3.68
K 105.1 31701 1984 5.00
INFORMATION!
The operating pressure should be at least double the pressure loss for liquids and five times for
gases. The indicated pressure losses are valid for water and air at maximum flow rate. Other
flow ranges on request. Conversion of other media or operating data is performed using the
calculation method in accordance with VDI /VDE Directive 3513.
MA_H250_M40_R02_en_640702_PRT.book Page 76 Wednesday, November 28, 2012 12:23 PM