Orifice plate position
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When measuring the liquid and gaseous products exiting the top of the tower, are there any requirements regarding the installation location of the orifice plate? Must it be installed on horizontal pipes or vertical pipes?
When measuring clean gases, try to place them in horizontal pipes； It can be on the vertical channel, but the flow direction should be from bottom to top. . The liquid measuring device can only be installed on horizontal pipelines.
Why is it best to place it on a horizontal pipe?
It must be installed on horizontal pipes.
Why? Are there any theories or standards?
You can search on Baidu for 【Orifice Flow Meter Manual】; once you read it, you’ll understand.
I checked the design specifications; liquids can also be used in vertical pipes.
I recommend installing it on vertical pipes, with the flow direction from bottom to top. This ensures that the measuring medium is protected from measurement errors caused by gas-liquid mixing.