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With the continuous development of industry, there is an increasing demand for ball valves, especially ball valves under high temperature and high pressure harsh conditions. Ball valves are required to have higher performances such as wear resistance, erosion resistance, high temperature resistance, and corrosion resistance. Although the traditional full-bore ball valve has surface hardening treat...
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With the rapid development of the economy and the increase of large-scale petrochemical engineering projects, more and more high-temperature hard-sealed ball valves are widely used in the fields of petroleum, chemical industry, steel, metallurgy and hydropower. Compared with soft-sealed ball valves, the sealing material and design structure of hard-sealed ball valves are better suitable for high-t...
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The eccentric half ball valve has the advantages of rapid opening and closing, light weight, small flow resistance, wedge-shaped principle can be used to remove fouling when closing, and is convenient for air control and electric control, etc., and has been widely used in various industries. A new self-sealing structure of the sealing pair is designed for the application of the eccentric half ball...
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The globe valve is a valve that uses the valve stem to lift and drive the valve head, thereby changing the distance between the valve disc and the valve seat to achieve opening and closing control. The globe valve is the most widely used cut-off valve in chemical production. Globe valves are mainly used for the control of water, steam, compressed air and other pipelines in actual production, but t...
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Overview Ultra-low temperature butterfly valves are mainly used in pipeline systems of liquefied natural gas and liquid nitrogen to control the opening and closing or adjustment of the pipeline equipment. The product adopts a double offset structure and an elastic metal sealing structure. The double offset structure can greatly eliminate unnecessary overloading and scraping of the disc and sealing...
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The vacuum butterfly valve is a common pipeline control valve, mainly used for fluid control in vacuum pipelines. Mainly used in petrochemical industry, metallurgical machinery industry, nuclear industry vacuum valve, etc. Structural Characteristics 1. It is designed and manufactured by adopting a new structural form welded by centerline butterfly plate and short structural steel plate. 2. Compact...
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