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The Double Dump valve is often used in replacing rotary airlocks. The valve consists of two flaps connected by counterweights or spring-loaded spindles, which are operated by means of a motor driven cam. The cam alternately opens each flap allowing materials to pass through the separate chambers in batch form and thereby ensuring a gas seal. Suitable for discharge dry dust, powder, granules and fibrous materials from cyclones, filters and hoppers.
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