Flexim FLUXUS WD, Operating Instruction

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3 General principles
3.4 Undisturbed flow profile
FLUXUS WD
2018-07-16, UMFLUXUS_WDV1-3EN
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Tab. 3.1: Recommended distance from disturbance sources
D – nominal pipe diameter at the measuring point
l – recommended distance between disturbance source and transducer position
disturbance source: 90° elbow
inlet: l ≥ 10 D outlet: l ≥ 5 D
disturbance source: 2 × 90° elbows on different planes
inlet: l ≥ 40 D outlet: l ≥ 5 D
disturbance source: valve
inlet: l ≥ 40 D outlet: l ≥ 5 D
disturbance source: reducer
inlet: l ≥ 10 D outlet: l ≥ 5 D
disturbance source: pump
inlet: l ≥ 20 D
l l
l l
l l
l l
l