Flow Sensor Position - Kamstrup MULTICAL 403 Installation And User Manual

3.2 Flow sensor position

A Recommended flow sensor position.
B Recommended flow sensor position.
C Unacceptable position due to risk of air
build-up.
D Acceptable position in closed systems.
E A flow sensor ought not to be placed
immediately after a valve, with the
exception of block valves (ball valve type)
which must be fully open when not used for
blocking.
F A flow sensor must never be placed on the
inlet side of a pump.
G A flow sensor ought not to be placed after a
double bend in two planes.
In order to avoid cavitation, the back pressure at the flow sensor (the pressure at the flow sensor
outlet) must be minimum 1.5 bar at q
This applies to temperatures up to approx. 80 °C.
The flow sensor must not be exposed to lower pressure than ambient pressure (vacuum).
Kamstrup A/S • 55121739_A4_GB_11.2017
E
(nominal flow) and minimum 2.5 bar at q
p
C
B
A
F
MULTICAL® 403
D
G
(maximum flow).
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