Electromagnetic flowmeter with anti-corrosion injection molding layer on inner cylinder wall

The utility model discloses an electromagnetic flowmeter with an anti-corrosion injection molding layer on an inner cylinder wall. Including a body, an iron core is fixedly mounted on the inner side of the main body; an exciting coil is fixedly installed on the inner side of the iron core, a measuring pipe is fixedly installed on the inner side of the exciting coil, the two ends of the measuring pipe extend to the outer sides of the two ends of the body, valves are fixedly installed on the outer sides of the two ends of the measuring pipe, an anti-corrosion layer is fixedly installed on the inner side of the measuring pipe, and a plurality of balls are installed on the outer side surface of the anti-corrosion layer. A spacing board and a plurality of first conductors, second conductors, third conductors, fourth conductors and fifth conductors are fixedly arranged on the inner side of the lower end of a measuring tube; when the anti-corrosion layers at the upper ends of the first conductor, the second conducto