Wuzhong Instrument Co., Ltd. (WZI) has been in business for nearly 60 years. WZI was founded in 1959 as a small factory to produce gauges and other instruments. After merging with No. 7 Shanghai Instrument Factory in 1965, WZI started to produce and supply control valve products to the customers all over the country. In 1980, WZI started to produce CV3000 series control valve under the license of Azbil Yamatake. Throughout the 1980’s and 1990’s, WZI’s CV3000 series control valves became the first choice for controls valves for the China industrial market. In 2002, WZI started cooperation with ARCA Germany to produce Ecotrol series control valves, including the multistage axial flow products for HTN/HTC. In 2010, WZI started to invest in multi-turn/multistage designs and has been producing these valves since 2014. The WZI name has been synonymous with industrial control valves in China. For Over 50 years, WZI has supplied high quality valves to thousands of customers in China and the overseas market.