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Nanjing Huaning Valve Co., Ltd. (the former Nanjing valve factory) is a professional manufacturer of high and medium pressure valves designated by the former Ministry of machinery industry and a national second-class enterprise. It is one of the leading enterprises in the R & D and production of power station valves in China. The company was founded in 1958, covers an area of 95 mu, has more than 50 years of valve research and development, design, manufacturing history. The company's valve products mainly include electric control valve, electric gate valve, electric stop valve, throttle valve, check valve, butterfly valve and other high-temperature and high-pressure valves for power stations and petrochemical industry; the valve diameter is from 4mm to 1000mm, the working pressure is from 0.6MPa to 50.0mpa, and the working temperature is from negative 20 ℃ to 600 ℃. Product models are complete, and non-standard products can be customized according to customer needs. After continuous efforts and innovation, the company's product quality and service has been widely recognized by the industry. The company has strong technical force, perfect detection means, sound quality assurance system, with a physical and chemical test building of more than 1000 square meters and a flow fluid test room of more than 300 square meters. While relying on its own technical strength, the company also introduces and absorbs domestic and foreign technologies, and has established cooperative relations with universities and scientific research institutions such as Nanjing University, Southeast University, Nanjing University of technology, etc. Relying on its strong technical advantages, the company has actively adjusted its product structure and broadened its domestic and foreign markets. At present, the company has developed a series of high parameter power station gate valve, stop valve, check valve, high-pressure differential, good performance, large caliber regulating valve and other valve products urgently needed in the market, such as WCB, wc6, wc9, c12a and 12CrMoV, F22, F91, etc., and has made a solid step towards valve localization. The company has become one of the main valve manufacturers of large-scale thermal power units. From 100MW unit to 1000MW unit; from boiler island, water supply, desuperheating water system to the whole power station system of drainage, evacuation, sampling, high-pressure heater, main steam, reheat steam, etc. The company has set up branches in Southeast Asia, and more than 50% of its products have been exported to Southeast Asia, South Asia, Africa and the Americas. In addition, it is also expanding markets in Europe and other regions.

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