5D in front and 3D behind for electromagnetic flowmeters? Which standard does it come from?
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Should an electromagnetic flowmeter be installed with 5D in front and 3D behind? Which standard does it come from? Are there any installation requirements for straight sections before and after electric valves, or are there any regulatory specifications?
HG20570, manufacturer’s manual – the best-looking sample; the installation methods vary for different flow meters
The manufacturer’s requirements are the most standard. Before 60% of the design is completed and a manufacturer has not been selected, it is possible to choose based on the value of 20570
Thank you to the original poster for providing this; upvoting! 0y47
It’s not a standard; each type of flow meter has its own installation requirements. There are requirements such as 5 inches in front and 3 inches behind, or 10 inches in front and 5 inches behind... Therefore, before piping is installed, it’s necessary to determine the requirements regarding the straight pipe section required for the flow meter, in order to avoid disturbances in flow patterns after installation, which could lead to inaccurate readings or large fluctuations