Positive displacement flow meters are mainly used to measure the volume flow of liquids and gases Calculate flow by measuring the number of times or volume size that the fluid fills a specific volume in a certain period of time. It is suitable for measuring various fluids, including water, oil, condensate and various high-viscosity liquids.
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Circular gear Flow meter, also known as PD Flow meter (positive displacement flow meter), is a type of flow meters with relatively high accuracy, good stability.
Oval gear flow meter has high measurement accuracy and is suitable for measuring the flow of high-viscosity media, but is not suitable for fluids containing solid particles (solid particles will jam the gear, making it impossible to measure flow). If gas is contained in the measured liquid medium, measurement errors will also be caused.