A butterfly valve is a quarter-turn valve commonly used to regulate flow in a piping system. It consists of a disk that rotates to open or close the flow path. Butterfly valves can be designed for high performance and high pressure applications, ensuring reliable operation under demanding conditions.
One notable feature of butterfly valves is their ability to achieve a bubble-tight seal, which prevents any leakage when the valve is in the closed position. This is particularly important in applications requiring precise flow control and safety. Bubble-tight sealing is often achieved with high-quality materials and precise manufacturing.
Butterfly valves come in various designs, including double offset and triple offset configurations. A double offset butterfly valve has the stem located slightly off-center from the centerline of the disk and valve body, reducing wear and improving seal life. A triple offset butterfly valve adds a third offset angle to the disk, further enhancing sealing capabilities and allowing the use of metal seated designs, which are suitable for high-temperature and high-pressure environments.
In addition to manual operation, butterfly valves can be motor operated or pneumatically actuated, providing automation and remote control capabilities. Motor operated butterfly valves use electric actuators for precise positioning, while pneumatic butterfly valves use compressed air for fast and efficient operation.
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