... Head:8.5-35m Speed: 1450-2900r/min High Efficiency Single Stage Sewage Pump Capacity:36-120m3 / h Head:8.5-35m Speed ... a lot of other metals can cause corrosion of liquid chemical mixtures. If so, if necessary, can choose to use ... water, widely used in chemical, petroleum, light industry, food, pharmaceutical and environmental protection industries. PW-type pump for pumping polluted water liquid ...