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DA1 series pumps are single suction, multistage, segmented centrifugal pumps for conveying water and physical and chemical properties similar to water, not containing solid particles of liquid, the highest temperature is not greater than 80℃. Widely used in underground coal mines (non working face) drainage and factories, urban water supply and other occasions. In the use of non excavation working face in the coal mine, it is necessary to support the explosion-proof motor. Performance range: flow 12.6-280 m3/h, head 13-275m.