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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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Direction When installing the butterfly valve, pay attention to the installation arrow on the valve body. If it is two-way pressure, it can achieve two-way sealing, and there is no installation direction. Water Inlet Configuration There are elbows and T-shaped pipes on the water inlet side of the butterfly valve, which cause the fluid to bend and distribute unevenly. When the fluid flows into the ...
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The commonly used wedge gate structures are divided into three types: elastic wedge, rigid wedge, and wedge type double gate. The sealing surfaces on both sides of the wedge gate have a certain inclination angle with the vertical centerline of the gate, which is called the wedge half angle. The size of the wedge half angle has a significant impact on the performance of the gate valve. When the ang...
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