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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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There are many types of valves, each with its own advantages and disadvantages. Below are the advantages and disadvantages of five major valves, including gate valves, butterfly valves, ball valves, globe valves, and plug valves. 1. Gate valve Gate valve refers to a valve where the closing element (gate) moves vertically along the channel axis. 1.1 Advantages ① Low fluid resistance, small torque r...
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1. Selection instructions for gate valve In general, gate valves should be preferred. Gate valves are not only suitable for media such as steam and oil, but also for media containing granular solids and high viscosity, and are suitable for valves in venting and low vacuum systems. For media containing solid particles, the gate valve body should have one or two purge holes. For low-temperature medi...
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Working principle of globe valves Assuming there is a water supply pipeline with a cover, water is injected from the bottom of the pipeline and discharged towards the direction of the pipe mouth, and the cover of the outlet pipe mouth is equivalent to the closing part of the globe valve. If you lift the pipe cover up with your hand, the water will be discharged outward. If you cover the pipe cover...
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