1, Â Â Straight pipe section requirements
In order to improve the effect of eddy current and flow field distortion, the flow meter is installed on the front and rear straight pipe sections with certain requirements, otherwise it will affect the measurement accuracy (it is also possible to install the flow distributor, and try to avoid after the * near-control valve and half-open valve installation).
Pipe installation type
Installation diagram
Standard pipeline
Straight pipe L
Straight pipe after S
Horizontal Pipe
Figure a
5D
3D
Curve
Figure b
10D
5D
Flaring tube
Figure c
5D
5D
Valve downstream
Figure d
10D
5D
Shrink tube
Figure e
5D
2D
Pump downstream
Figure f
15D
5D
Mixed liquor
Figure g
30D
3D
2, Â Â Process tube requirements
Flowmeters have certain requirements for installing upstream and downstream process tubes; otherwise, the measurement accuracy will be affected.
a.        The inner diameter of the upstream and downstream process tubes is the same as the inner diameter of the sensor and should satisfy: 0.98DN≤D≤1.05DN (where DN: sensor inner diameter, D: process tube inner diameter)
b. Â Â Â Â Â Â Â Process tube and sensor must be concentric, coaxial deviation is not greater than 0.05DN
3, the requirements of the bypass channel
In order to facilitate overhaul of the flowmeter, it is better to install a bypass channel for the flowmeter. In addition, if the heavy pollution fluid and the flowmeter need to be cleaned and the fluid cannot be stopped, the bypass channel must be installed.
4, in accordance with the requirements of the flowmeter on the pipeline
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