Burkert 8041 Manuel Utilisateur page 68

The minimum straight upstream (10 x DN) and downstream (3 x DN) distances must be
observed. See also the instruction manual of the used fitting to correctly install it into the
pipe.
Please ensure the pipe design does not allow the build up of air bubbles
or cavities within the medium as this will cause measuring errors.
8041
INSTALLATION
Flow direction
10 x DN
Flow direction
Correct
Correct
FLOW
FS = x,xxx
Flow direction
In cor rect
In cor rect
23
3 x DN