Wall Penstocks are devices used to control water flow, often used in water conservancy projects and hydropower stations. They are installed on the walls of water pipes or waterways and are used to regulate the flow and pressure of water flow. Wall Penstocks are usually made of metal and provide a reliable seal that can completely shut off or open the flow of water. They usually consist of a revolving door and an operating lever, and the opening and closing of the revolving door controls the on and off of the water flow. This kind of equipment plays an important role in water conservancy systems and can be used for flood control, irrigation systems, reservoirs and river regulation, etc.