ABB FSM4000 - Installation in Piping with Larger Nominal Diameter

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FSM4000 ELECTROMAGNETIC FLOWMETER | DS/FSM4000-EN REV. L
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… General data
Installation in piping with larger nominal diameter
1
Reducer
Figure 10: Using reducers
Determine the resulting pressure loss when using reducers:
1. Determine diameter ratios d/D.
2. .Determine the flow velocity based on the flow rate
nomogram (Figure 11).
3. Read the pressure loss on the Y-axis in Figure 11.
Figure 11: Flow rate nomogram for flange transition piece at α/2 = 8°