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６ＺＢ１２型自吸水泵改进设计后，解决了气密性不好的问题，使产品使用寿命得以提高；也降低了泵重，降低了生产成本，提高了铸造成品率，有利于产品参与市场竞争。
6ZB12-type self-priming pump to improve the design to solve the problem of poor air tightness, so that product life can be improved; also reduce the pump weight, reduce production costs and improve the casting yield, is conducive to product market competition.