Yuyao Yinhuan Flow Meter Co., Ltd. was formerly known as Yuyao Flow Meter Factory and China Silien Group Yuyao Flow Meter Joint Venture Company, which is a national second-class enterprise specializing in the production of flow meters and other industrial automation instruments. With professional water flow, gas flow, oil flow standard calibration device, through the "China Academy of Metrology" testing, comprehensive testing capacity of the national leading.

The company mainly produces and sells float flowmeter, electromagnetic flowmeter, vortex flowmeter, oval gear flowmeter, turbine flowmeter and other products, a variety of specifications. Widely used in chemical, petroleum, metallurgy, paper, pharmaceutical, food, environmental protection and scientific research fields. And exported to Southeast Asia, South America, Europe and the United States and other countries.

LZB glass float flowmeter series won the title of national silver quality award in 1990. Won the Ningbo City Quality Management Award and Zhejiang Province Machinery System Quality Management Award. The company is one of the 13 national standards drafting units of float flowmeter, vortex flowmeter, electromagnetic flowmeter and differential pressure measuring device, etc. In 2001, the company passed the ISO9001 international quality certification system, and in 2012 passed the ISO14001 environmental management system certification.