Structural features and uses spiral valve structure is simple, flexible operation, light weight, no jamming. Especially suitable for all kinds of solid materials and about 50mm lumpy, lumpy material delivery and flow adjustment, installation is not limited by the angle, easy to operate, can adjust the opening at any time. This valve is a kind of main control equipment for the flow or delivery of powder, grain, pellet and small fast material. It is widely used in metallurgical, mining, building materials, food and chemical industries to control flow rate change or speed cutoff.
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