FB pump is of single-stage single suction anticorrosive centrifugal pump.It integrates the advantage of kinds of pumps in the 1990抯 and adopts the advanced hydraulic model, novel structure and high strength of sigle -& two-terminal face mechanical seal,with the features of high efficiency and energy save,compact structure,stable performance and reliable operation etc. The pump serves as transportation of the corrosive liquid without solid granule.The medium temperature is between-20℃and 105℃.The additional measurements in mechanical seal and cooling measurement can ensure transportation of higher temperature of medium .The inlet pressure of pump is no more than 0.2Mpa. It is widely used at the industries such as petroleum, chemistr-y,metallurgy,syn-thetic fiber,pharmacy,foodstuff and brewage and also services at the industrial and mineral enterprise and city water supply and drainage.