2026-Wenzhou Zhongwei Petrochemical Equipment Manufacturing Co., Ltd.

Located in Longwan, China’s renowned valve base, Wenzhou Zhongwei Petrochemical Equipment is a national high-tech enterprise and Zhejiang technology-based enterprise. It runs a core production base in Wenzhou and a professional R&D center in Shanghai, holding multiple national invention patents with strong independent research and innovation capabilities. We specialize in filters, flame arresters, breathing valves, sight glasses, liquid level gauges, mixers, silencers, manholes, metal hoses and expansion joints. Our products are widely used in petroleum refining, chemical, natural gas, pharmaceutical, new energy and environmental protection industries, with abundant successful operation experience in large and medium-sized national projects. The company is equipped with 68 sets of advanced production equipment and 13 sets of professional testing instruments, including high-end machining centers and CNC machine tools. With sophisticated craftsmanship, innovative design and comprehensive testing systems, we ensure stable and superior product quality. We have obtained complete qualifications including ISO9001, ISO14001, ISO45001, TS certification, CE, ATEX and EAC certificates. Our core products of filters, flame arresters and breathing valves are patent-certified, and flame arresters have passed professional institutional testing. Leveraging Shanghai R&D advantages and Wenzhou industrial resources, we adhere to premium quality, reasonable pricing and full-range service to create long-term win-win cooperation with global clients.