Prohibited Installation When Measuring Steam And Gases; Pipelines With Control Valve - Siemens SITRANS FX330 Operating Instructions Manual

SITRANS FX330

3.4.2 Prohibited installation when measuring steam and gases

1 Lower pipe bends
2 Condensate
DANGER!
Prohibited: Installing the device in a lower pipe bend 1, because there is a risk of condensate
forming 2.
Condensate can lead to cavitation and inaccurate measurement. Under certain circumstances
the device can be destroyed and the measured medium can leak.

3.4.3 Pipelines with control valve

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 3-5: Pipeline with control valve
1 Recommended: installing the device before the control valve at a distance of ≥ 5 DN
2 Not recommended: Installing the flowmeter directly downstream of control valves, due to vortex formation.
05/2016 - A5E36751269-AA www.siemens.com/flow
INSTALLATION
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