Elliptic gear flowmeter is used for continuous measurement of liquid flow in the pipeline positive displacement flow meter, widely used in various industrial fields of liquid flow control, suitable for various types of liquid measurement, such as crude oil, diesel, gasoline, etc., with a large range, convenient calibration, easy installation and other characteristics, different liquid can choose different materials, Can meet the petroleum, chemical, pharmaceutical, food, chemical fiber, crude oil ratio, industrial sectors and other fields of liquid flow measurement.