Tecfluid CU Series - Manual (Page 13)

13
5.1 Straight pipe run requirement
In order to obtain the maximum reading stability and accuracy, the point where the
transducers will be installed must meet some requirements regarding the straight pipe
sections before and after this point.
If the element that can disturb the flow profile is a fitting such as a flange, the straight pipe
section before and after the transducers should be minimum 5 x DN.
Some plant elements such as pumps, valves, etc., can create turbulences that distort the
flow profile resulting in incorrect measurements. In this case, the
distances of straight pipe
without disturbing elements before and after the transducers can be higher, as shown in
the following pages:
5
TRANSDUCERS INSTALLATION
5 TRANSDUCERS INSTALLATION
Make sure that the surface of the pipe where the transducers will be installed is clean and
free of oxides or other dirt.
If possible, always install the transducers on a rising pipe, to ensure that it is always full of
liquid.
If the installation of the transducers is in a horizontal section, they should not be placed in
the top of the pipe, but in the area indicated in the figure below: