Technical data – KROHNE H250 M8-M9-M10 EN User Manual
Page 86
8
TECHNICAL DATA
86
H250
www.krohne.com
04/2011 - 4000269302 MA H250-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:
The flow measurement of gases are refered to
Nl/h or Nm
3
/h: Volume flow in Normal state 0°C, 1.013 bar abs. (DIN 1343)
Measuring span:
10 : 1
Declaration of flow:
Values = 100%
Water: 20°C [68°F]
Air: 20°C [68°F], 1.013 bar abs. [14.7 psia]
Flow direction
from top to bottom
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 oper. press. should be at least twice the pressure loss for liquids, and at least 5
times the pressure loss for gases! The specified pressure drops are valid for water and air at
maximum flow rate. Other flow ranges on request. Conversion of other media or operating data
(pressure, temperature, density, viscosity) is performed using the calculation method in
accordance with VDI /VDE Directive 3513
MA_H250_R02_en_269302_PRT.book Page 86 Tuesday, April 12, 2011 10:17 AM