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由林业部泰州林机厂研制的BJ331、BJ331D手抬机动泵和YL40-25-85微型泵于1986年7月通过鉴定。BJ331、BJ331D手抬机动泵主要用于林业苗圃、农业经济作物、蔬菜等喷灌、施肥。还可用于工程排水、森林灭火、仓库消防灭火等。排气自吸引水,最大自吸高度7m,引水时间不超过45~(+10)S。出水压力343kPa;流量25t/h。BJ331采用叶轮口环与泵壳双向迷宫密封。出水阀为旋转式,出水方向可任意调整。BJ331D除采用BJ331的高效水泵外,为实现电起动采用了起动、发电二合一电机直接联接于曲轴的结构,这在电起
By the Ministry of Forestry Taizhou Lin Machinery Factory developed BJ331, BJ331D hand-lift motor pump and YL40-25-85 micro-pump in July 1986 passed the appraisal. BJ331, BJ331D hand-lift motor pump is mainly used for forestry nurseries, agricultural cash crops, vegetables, sprinkler irrigation, fertilization. Can also be used for engineering drainage, forest fire, warehouse fire and other fire. Self-suction exhaust, the maximum self-priming height 7m, diversion time does not exceed 45 ~ (+10) S. Outlet pressure 343kPa; flow 25t / h. BJ331 uses impeller ring and pump casing two-way labyrinth seal. Outlet valve for the rotation, the direction of the water can be adjusted. BJ331D addition to the use of high-efficiency pump BJ331, in order to achieve the use of electrical start-up, power two-in-one motor directly connected to the crankshaft structure, which erected