Kamstrup flowIQ 3100 - Dimensions - Connection Types; Threaded Connections (ISO 228-1); Flanged Connections (DN)

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:
pkvQ ∆×=
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