Valve closure mechanisms are the various methods used to shut off the flow of fluid or gas through a valve. These mechanisms are essential components of many industrial and commercial systems, including pipelines, chemical plants, and power generation facilities. The type of closure mechanism used depends on the application, the type of valve, and the fluid or gas being transported. One of the most common valve closure mechanisms is the gate valve, which uses a wedge-shaped gate to block the flow of fluid or gas. When the valve is open, the gate is raised, allowing the fluid or gas to pass through. To close the valve, the gate is lowered, creating a tight seal that prevents any further flow. Another type of valve closure mechanism is the ball valve, which uses a spherical ball with a hole in the center to control the flow of fluid or gas. When the valve is open, the ball is rotated so that the hole is aligned with the flow path, allowing the fluid or gas to pass through. To close the valve, the ball is rotated 90 degrees, blocking the flow path and creating a tight seal. A third type of valve closure mechanism is the butterfly valve, which uses a flat disc with a pivot point to control the flow of fluid or gas. When the valve is open, the disc is rotated so that it is parallel to the flow path, allowing the fluid or gas to pass through. To close the valve, the disc is rotated 90 degrees, blocking the flow path and creating a tight seal. Valve closure mechanisms are critical components of many industrial and commercial systems, and their proper operation is essential for the safe and efficient operation of these systems. Regular maintenance and inspection of these mechanisms are necessary to ensure their continued reliability and safety.
gate valve, ball valve, butterfly valve, industrial systems, maintenance
CITATION : "Timothy Lewis. 'Valve Closure Mechanisms.' Design+Encyclopedia. https://design-encyclopedia.com/?E=262783 (Accessed on August 07, 2025)"
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