Pneumatic butterfly valves are crucial devices in various industrial applications, primarily utilized for regulating the flow of fluids. These valves are characterized by a disc that pivots within the valve body, effectively controlling the flow path of liquids or gases. This article will delve into the structure, operation, advantages, applications, and maintenance of pneumatic butterfly valves, shedding light on their significance in fluid control systems.

    Structure and Operation

    The fundamental design of a pneumatic butterfly valve consists of several key components: the valve body, disc, stem, actuator, and seal. The valve body houses the disc, which is mounted on a shaft and rotates around an axis to open or close the flow passage. When the actuator, powered by compressed air, is activated, it rotates the disc, allowing or restricting fluid flow.