Star unloader valve, also known as electric cinder, lock valve, under the feeder. Unloader by the motor, cycloid and turn Long type cinder valve consists of three parts. There are two series. 60 kinds of specifications. Import and export of a square flange type A, type B round type. Unloading equipment primarily for ESP ash, air, and other devices to the main device materials. Mainly for powdery, granular material is very effective. The equipment for environmental protection, metallurgy, chemical industry, food, food and other industrial sectors are widely used. Star unloader used in pneumatic output system, for pressure or vacuum output system output system, star discharge can be uniformly and continuously fed to the conveying pipe. To ensure that the gas output pneumatic tube, solid stable, so that the pneumatic conveying can work, same time, but the upper and lower discharge pressure off the air lock and play the role. Therefore, star discharge is an important component of pneumatic conveying systems commonly used.