The pump is in the production and life of both common and important means to change the volume of fluid pressure or fluid conveying machine, iron and stainless steel are raw materials manufacturing pumps, stainless steel centrifugal pump with cast iron pumps do not have the advantage, at present China is being cast iron pump stainless steel centrifugal pump replaced.

It is reported that the development time of stainless steel centrifugal pump later than cast iron pump, pumps and other 6 kinds of energy-saving products will be included in the scope of financial subsidies to promote. Pump is a major energy consumption, it is estimated that 20% of the country's electricity consumption is consumed by the pump, so the efficiency of the pump to improve the efficiency of energy saving will be more significant. The Ministry of finance subsidies or will accelerate the replacement process of stainless steel cast iron pump, stainless steel centrifugal pump made of stainless steel plate stamping molding, the channel is very smooth, can avoid the water quality of the "two pollution", the hydraulic efficiency (higher than similar cast iron pumps about 10% ~ 20% power) to replace the cast iron pump is represent the general trend. However, the cost of the acquisition of stainless steel pump than 30% ~ 20% of the cast iron pump, at present in the eastern part of China's three or four cities and the central and western regions are relatively small, there is a large alternative space. The Ministry of finance will have the energy saving effect of the pump into the scope of subsidies, or to speed up the process of replacing the cast iron pump.

With the development of national policy and the stainless steel centrifugal pump manufacturing industry, improve the technical level, reduce the price level, the future cast iron pump will gradually withdraw from the stage of history has been replaced by stainless steel centrifugal pump, stainless steel centrifugal pump to catch up from behind.