6
A
Recommended flow sensor position
B
Recommended flow sensor position
C
Unacceptable position due to risk of
air build-up
D
Acceptable in closed systems.
Unacceptable position in open
systems due to risk of air build-up in
the system
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 levels
In order to prevent cavitation the back pressure at ULTRAFLOW® must be min. 1.5
bar at qp and min. 2,5 bar at qs (4.5 bar for DN80). This applies to temperatures up
to approx. 80
o
C.
ULTRAFLOW® must not be exposed to lower pressure than the ambient pressure
(vacuum).
3.1 Mounting ULTRAFLOW®
≤
Dn100
90°
90°
ULTRAFLOW® can be mounted vertically,
horizontally or at an angle.
The electronics/plastic box
must be placed on the side (at
horizontal mounting).
Max.
45°
Max.45°
ULTRAFLOW® may be turned up to ±45° in relation to the pipe axis.
ULTRAFLOW® must not be mounted with
the plastic case pointing upwards or
downwards.