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1.Introduction In the transportation and storage of cryogenic media such as liquefied natural gas (LNG), liquid nitrogen, liquid oxygen, and liquid hydrogen, the reliability and maintainability of valves are of critical importance. Cryogenic butterfly valves are not only capable of operating reliably under extreme low temperatures, but are also designed with “easy maintenance” i...
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Introduction In industrial fluid control systems, gate valves, as a type of shut-off valve, have long played a key role in opening and closing operations. With increasingly complex operating conditions, higher demands are being placed on valves in terms of corrosion resistance, wear resistance, and service life. Among the many available materials, duplex stainless steel (ASTM A995 5A) combi...
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In industrial pipeline systems, the gate valve is one of the most widely used types of shutdown valves. It is favored for its simple structure, reliable sealing, and low fluid resistance, making it a key flow control device in industries such as oil and gas, chemicals, power generation, metallurgy, and water treatment. So, in what situations is a gate valve most suitable? This article provides a d...
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Ball Valve Overview The ball valve evolved from the plug valve. Its closing element is a spherical ball that rotates 90° around the valve stem axis to open or close the valve. Unlike plug valves, the ball valve’s plug is spherical with a circular bore or passage running through its axis. When the ball rotates 90°, the inlet and outlet are completely blocked by the solid ball s...
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In a building’s sewage discharge system, the check valve is a critical component for ensuring both safety and efficiency. A sewage lifting unit is primarily used to collect domestic or industrial wastewater generated inside the building—often containing feces, toilet paper, kitchen waste, and other debris—and pump it to the municipal pipeline. Due to the complex composition of wa...
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Although wafer check valves and swing check valves serve the same functions—such as preventing backflow, enabling low-load pump startup, and reducing water hammer—they differ significantly in design standards, structural features, and areas of application. This article analyzes their differences across five key aspects to help users make more informed decisions when selecting a suitabl...
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Globe valves are widely used across various industrial systems to control the start, stop, and regulation of fluid flow. However, in real-world operation, many users face a common question: how to accurately determine whether a globe valve is currently open or closed? This article will explain in detail how to identify the open or closed status of a globe valve based on its structural design, hand...
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A butterfly valve is a type of rotary valve known for its compact structure, lightweight design, and fast opening and closing performance. It is widely used in industries such as water treatment, chemical processing, oil and gas, and power generation to shut off or regulate fluid flow. What Is a Butterfly Valve? A butterfly valve is a type of valve that uses a circular disc (also known as a...
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In today’s increasingly complex industrial landscape, where working conditions are becoming more demanding, valve selection plays a critical role not only in equipment efficiency but also in the overall safety and stability of the system. Among various options, the triple offset metal seated butterfly valve stands out for its superior sealing performance and structural advant...
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