Mechanical Installation; Pipe Component And Transducer; Recommended Steadying Run Lengths For Inlet Run Disturbances - ABB Sensyflow iG Operating Manual

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Mechanical installation

4.1 Pipe component and transducer

Inlet and outlet runs must be provided to avoid negative effects on the measuring accuracy, These
steadying run lengths make sure that disturbances of the flow profile are eliminated before they can reach
the actual measuring point at the transducer. Straight, undisturbed pipe lengths are used as steadying
run lengths, their length depends on the type of the inlet run disturbance.
4.1.1
The inlet and outlet run lengths are stated as multiples of the pipe diameter D.
Recommended insatallation requirements according to DIN EN ISO 5167-1
42/14-39 EN Sensyflow iG, Version 1.00

Recommended steadying run lengths for inlet run disturbances

×
X D
Z-18941
Z-18943
Z-18944
Mechanical installation
×
5 D
Z-18938
Expansion
X = 15
Reducer
X = 15
90° elbow
X = 20
Two 90° elbows
in one level
X = 25
Two 90° elbows
in two levels
X = 40
Valve/slide
X = 50
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