C.R.I. “SMB Series” Self-priming non-Clog Monoblock Pump’s are especially designed to dewater the sewage and sludges from trenches and pits. It is designed with non-clogging semi open type impellers which is supports for handling suspended solids. These pumps are powered by a totally enclosed fan cooled A.C. induction motor. Motor stator is made of low watt loss silicon steel laminations assembled under pressure and rigidly locked in the frame. Construction of motor frames and usage of quality materials result in high performance and low temperature rise thereby increasing the life cycle of the motor.