Pneumatic Wafer Butterfly Valves are commonly used in industrial process control and fluid handling systems as a key component for regulating or isolating the flow of liquids, gases, and slurries. These valves are primarily used for the quick shut-off, diversion, or proportional control of process media in pipelines. They are characterized by a compact, lightweight design and rapid actuation, making them ideal for automated systems.
The valve operates by a quarter-turn (90-degree) rotation of a disc (the "butterfly"), which is mounted on a central shaft. In the open position, the disc is parallel to the flow, offering minimal resistance. In the closed position, the disc rotates to be perpendicular to the flow, sealing against a resilient seat integrated in the valve body to shut off the medium.
Components of a pneumatic wafer butterfly valve include a valve body, a circular disc, a stem (shaft), a resilient seat, and packing seals and bearings. The valve is actuated by a pneumatic actuator, which can be a double-acting or spring-return type, typically driven by compressed air systems.
Pneumatic Wafer Butterfly Valves have wide application across various industries wherever efficient and reliable flow control is required. They are suitable for handling water, air, steam, various chemicals, oils, and abrasive slurries.
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