Breather Valve

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Our associated company:Wuzhong Instrument Co., Ltd. (WZI) was founded in 1959 as a small factory to produce gages and other instruments. After merged 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 1969. In 1980, WZI started to produce CV3000 series control valve under the license of Azbil Yamatake. Through out 1980’s and 1990’s, WZI’s CV3000 series control valves became the first choice of China industrial market. In 2002, WZI started cooperation with ARCA Germany to produce A series control valve. Ever since, the WZI name has been synonymous with industrial control valves in China. The pressure\vacuum relief valves are used for oil, petrochemicals, natural gas and other industries to protect pressure equipment. It can be used to maintain the pressure of the tank, which is always in a normal state of and to reduce the evaporation losses of volatile liquid inside the tank ,and to avoid the damage of ultra-vacuum or overpressure.

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SINO Machinery Industry Corporation

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