Technical data – KROHNE H250 M40 EN User Manual
Page 75
TECHNICAL DATA
8
75
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
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]
EN
ASME
Cone
Water [l/h]
Air [Nm
3
/h]
Pressure loss
[mbar]
DN15
½
K 15.1
70
1.8
195
K 15.2
120
3
204
K 15.3
180
4.5
195
K 15.4
280
7.5
225
K 15.5
450
12
250
K 15.6
700
18
325
K 15.7
1200
30
590
K 15.8
1600
40
950
K 15.8
2400
60
1600
DN25
1"
K 25.1
1300
35
122
K 25.2
2000
50
105
K 25.3
3000
80
116
K 25.4
5000
130
145
K 25.5
8500
220
217
K 25.5
10000
260
336
DN50
2"
K 55.1
10000
260
240
K 55.2
16000
420
230
K 55.3
22000
580
220
K 55.3
34000
900
420
DN80
3"
K 85.1
25000
650
130
K 85.2
35000
950
130
K 85.2
60000
1600
290
DN100
4"
K 105.1
80000
2200
250
K 105.1
120000
3200
340
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 75 Wednesday, November 28, 2012 12:23 PM