A brass impeller surrounded by a cast iron diffuser, bracket, and case makes this pump as strong as those used by your grandfather!
泵的黄铜叶轮由铸铁扩散器、支架和外壳包围，使泵非常坚固耐用！
2
It's necessary to calculate the pressure distribution in the space between. the centrifugal impeller and the case for calculating the axial thrust of high pressure centrifugal pumps and compressures.