Pneumatic spiral gates, also known as pneumatic plug valves, are essentially manual spiral gates equipped with a pneumatic device. They feature simple structure, flexible operation, light weight, no jamming, and quick opening and closing. They are particularly suitable for conveying and flow regulation of various solid materials and lump-shaped or clump-like materials with sizes around 50mm. Installation is angle-independent, operation is convenient, and adjustments can be made at any time. Other drive methods can also be selected according to customer needs, such as electric. Pneumatic spiral gates are the primary control equipment for flow or conveying volume of powders, granular materials, particle materials, and small pieces, widely used in industries such as metallurgy, mining, building materials, grain, and chemicals for controlling flow changes or rapid shutdown.