... and buildingd) Irrigation and drainage pumping statione) Power station3) Technical data:a) Diameter: 80-1,200mmb) Flow: 65 - 11,600cbm/hc) Head ... ,both internal surface of the pump casing and the impeller's surace, being precisely cast,are extremely smooth and have ... structured, which greatly reduces radial force, lightens bearing‘s load and prolongs bearing’s service life. 4.Bearing use SKF and NSK ...