Can a orifice plate flow meter be installed vertically?

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During the installation and commissioning phase, most orifice plate flowmeters are installed horizontally; however, there are some that are installed in vertical pipes. Many customers have called to inquire whether it is possible to install them in this manner So today, the editor will discuss this issue with you: generally speaking, orifice plate flow meters are best installed in parallel pipes so that the pipes are filled with liquid; otherwise, this will affect the measurement values due to the height difference present in a vertical configuration. It is necessary to address the issue of repositioning in advance. However, there are also cases where they are installed vertically – after all, the water supply pipes in air-cooled and water-cooled towers are installed vertically. So it can be installed in this way, but remember that the fluid should flow from bottom to top to ensure that the pipes remain full at all times. The final conclusion is: it can be installed vertically, but there are requirements regarding the flow direction of the medium. 1: Liquids generally flow from bottom to top, while gases generally flow from top to bottom. 2: The straight pipe section must be circular, and within a 2D range in front of the throttling element, the degree of circularity is required to be very high, with specific circularity criteria. Specific measurement method: At the four vertical pipe sections of OD, D/2, D, and 2D in front of the throttle element, measure at least 4 individual inner diameter values for each pipe at roughly equal angular intervals, and take the average as D. The difference between any single inner diameter measurement and the average value shall not exceed ±0.3%.