Technical data – KROHNE H250 M40 EN User Manual
Page 77
TECHNICAL DATA
8
77
H250 M40
www.krohne.com
11/2012 - 4000640702 MA H250 M40 R02 en
H250U - Vertical 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
Nl/h or Nm
3
/h: Volume current in standard state 0°C - 1.013 bar abs. (DIN 1343)
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]
Flow direction
vertical downwards
EN
ASME
Cone
Water [l/h]
Air [Nm
3
/h]
Pressure loss
[mbar]
DN15
½
"
K 15.1
65
1.6
175
K 15.2
110
2.5
178
K 15.3
170
4
180
K 15.4
260
6
200
K 15.5
420
10
220
K 15.6
650
16
290
K 15.7
1100
28
520
K 15.8
1500
40
840
DN25
1"
K 25.1
1150
30
97
K 25.2
1800
45
85
K 25.3
2700
70
92
K 25.4
4500
120
115
K 25.5
7600
200
172
DN50
2"
K 55.1
9000
240
220
K 55.2
15000
400
230
K 55.3
21000
550
240
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.
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