Kamstrup flowIQ 3100, Техническое описание

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TECHNICAL DESCRIPTION flowIQ® 3100
16
Kamstrup A/S • Technical Description • 5512 - 1242_B1_GB • 05.2015
6 Pressure loss
According to OIML R49 maximum pressure loss must not exceed 0.63 bar (0.063 MPa) in range Q1 to Q3.
The pressure loss in a meter increases with the square of the flow and can be stated as:
p kv Q
∆ × =
where :
Q = volume flow rate [m
3
/h]
kv = volume flow rate at 1 bar (0.1 MPa) pressure loss
Δp = pressure loss [bar]
Pressure loss table
Graph Q3[m
3
/h] Nom. diameter [mm] K
v
Q at 0 .63 bar
[m
3
/h]
B 1 .6 & 2.5 DN15 & DN20 4 . 3 3 . 4
C 4 .0 & 6. 3 DN25 13 10
D 10 DN40 28 22
E 16 DN50 37 29
F 25 DN65 102 81
Pressure loss diagram