Alloy steel butterfly control valves exhibits the enhanced durability and resistance of alloy steels, which are superior to carbon steel in terms of wear, corrosion, and high-temperature performance. These rotary valves regulate gas or liquid flow by rotating a disc 90 degrees to adjust the flow passage size. Capable of starting, stopping, slowing, or throttling flow, they respond to controller signals for precise control, ensuring reliable and efficient performance in demanding environments.