The turbine flowmeter is composed of a turbine flow sensor and a display instrument, and it is a type of flowmeter that is more suitable for liquid flow. The flowmeter features a simple structure, high precision, and convenient installation, maintenance and use. Turbine flowmeters are widely used in fields such as petroleum, chemical engineering, metallurgy, water supply, papermaking, environmental protection, and food. They are suitable for measuring liquids in closed pipelines that do not corrode stainless steel 1Cr18Ni9Ti, 2Cr13, corundum Al2O3, and hard alloys, and have no fibers, particles or other impurities. If used in conjunction with display instruments with special functions, it can be used for automatic quantitative control, over-limit alarm and other purposes.