A Manual Slide Valve is a mechanical flow control device operated by hand, designed to regulate or stop the flow of liquids, gases, or granular materials in pipelines or systems. It features a sliding plate or disc that moves linearly within a housing to open, close, or throttle the passage, providing precise control over fluid dynamics. Ideal for the need for reliable, on-demand operation without external power sources, this valve is widely used in industrial, commercial, and process control applications.