Flexim FLUXUS H721 - Page 19

3 General principles
FLUXUS H721 3.4 Undisturbed flow profile
19
UMFLUXUS_H721V1-5EN, 2022-05-15
disturbance: double elbow out of plane (with elbow distance l
2
≥ 3 D)
inlet: l ≥ 10 D
(l ≥ 2 D with disturbance correction)
outlet: l ≥ 3D
disturbance: double elbow out of plane (directly coupled)
inlet: l ≥ 40 D
(l ≥ 2 D with disturbance correction)
outlet: l ≥ 3D
disturbance: valve
inlet: l ≥ 40 D outlet: l ≥ 5D
disturbance: reducer
inlet: l ≥ 10 D outlet: l ≥ 3D
disturbance: pump
inlet: l ≥ 20 D
Tab. 3.3: Recommended distance from disturbances
D – nominal pipe diameter at the measuring point
l – recommended distance between disturbance and transducer position
ll
l
2
l
2
ll
ll
ll
l