KROHNE OPTISWIRL 4070 EN - Manual (Page 23)

INSTALLATION
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OPTISWIRL 4070
www.krohne.com 02/2013 - 4000150606 MA OPTISWIRL4070C R07 en
3.4.3 Pipelines with control valve
3.4.4 Preferred mounting position
INFORMATION!
To ensure smooth and correct measurement, the manufacturer recommends not installing the
measuring device downstream from a control valve. This would run the risk of vortex formation,
which would distort the measuring result.
Figure 3-4: Pipeline with control valve
1 Recommended: installing the device upstream upstream upstream upstream from the control valve at a distance of ≥ 5 DN
2 Not recommended: Installing the flowmeter directly downstream directly downstream directly downstream directly downstream of control valves, due to vortex formation.
Preferred mounting position
1 Above a horizontal pipe
2 underneath a horizontal pipe (not permitted with lines at risk for condensate)
3 On a vertical pipe
INFORMATION!
Depending on the installation position, you may have to rotate the display and/or the connection
housing. For further information refer to Turning the display on page 25.
MA_OPTISWIRL4070C_R07_en_150606_PRT.book Page 23 Wednesday, February 13, 2013 2:47 PM