Pressure Loss - Kamstrup ULTRAFLOW 54 Technical Description

TECHNICAL DESCRIPTION

6 Pressure loss

The pressure loss in a flow sensor is stated as the maximum pressure loss at q
maximum pressure loss must not exceed 0.25 bar, unless the energy meter includes a flow controller or functions
as pressure reducing equipment.
The pressure loss in a sensor increases with the square of the flow and can be stated as:
Q = kv × ∆ p
where:
Q =volume flow rate [m³/h]
kv=volume flow rate at 1 bar pressure loss
∆p=pressure loss [bar]
Graph
A
B
C
D
E
F
1
0,1
0,01
0,1
q
Nom. diameter
p
[m³/h]
0.6 & 1.5 DN15 & DN20
2.5 & 3.5 & 6 DN20, DN25 & DN32
10 & 15 DN40 & DN50
25
40
60 & 100 DN100 & DN125
Table 15. Pressure loss table.
∆p ULTRAFLOW
A
1
Diagram 1. Pressure loss chart for ULTRAFLOW
5512-385 GB/02.2014/Rev. H1
kv
[mm]
3.2
13.4
40
DN65 102
DN80 179
373
®
54 and 34
B C
10
Flow [m³/h]
®
54 and 34.
®
ULTRAFLOW 54 and 34
. According to EN 1434 the
p
Q@0.25 bar
[m³/h]
1.6
6.7
20
51
90
187
D E F
100 1000
21