Qilu Petrochemical Rubber Factory recently adopted a new type of paint on the industrial pumps to achieve the dual effect of protection and energy saving. Qilu Petrochemical Rubber Factory water supply and drainage plant for the industrial pump impeller pump, long run will produce blisters on the impeller, pores, affecting the pump operating cycle. To this end, the plant in the pump impeller, the inner surface of the pump housing and other parts in contact with water sprayed a special coating, which effectively prevent cavitation inside the pump, extending the running time. According to reports, the use of the new paint, the water friction within the pump resistance becomes smaller, making the pump operating power greatly reduced, a pump can save 260,000 kWh per year.